Search Subject Areas | Preprints.org

Preprint ARTICLE | doi:10.20944/preprints202305.2257.v1

Genetic Diversity and Population Structure of Bursaphelenchus xylophilus in Central China based on SNP Markers

Aixia Yang, Xiaolei Ding, Yuan Feng, Tingting Chen, Jianren Ye

Subject: Biology And Life Sciences, Forestry Keywords: Bursaphelenchus xylophilus; SNP; genetic diversity; population differentiation (List three to ten pertinent keywords specific to the article yet reasonably common within the subject discipline.)

Online: 31 May 2023 (13:23:36 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202305.2075.v1

Land Use Change and Structural Diversity of Affem Boussou Community Forest in Tchamba 1 Commune (Tchamba Prefecture, Togo)

Fousseni Folega, Badjare Bilouktime, Tchabi Mustapha, Mouctar Kamara, Atakpama Wouyo, Issifou Aboudoumisamilou, Djiwa Oyetunde, Wala Kperkouma, Batawila Komlan, Akpagana Koffi

Subject: Biology And Life Sciences, Forestry Keywords: land use changes; zoning; community forest; resilience; Togo

Online: 30 May 2023 (07:57:57 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202305.1624.v1

Anthropogenic Damage, Land Cover Change and Mitigation of Mount Hamiding Protected Forest Area in North Halmahera District, North Maluku Province-Wallace Zone, Indonesia

Jacob Kailola, Rishadi Purwanto, Sumardi Sumardi, Lies Rahayu W Faida

Subject: Biology And Life Sciences, Forestry Keywords: anthropogenic; land cover change; mitigation; protected forest

Online: 23 May 2023 (08:32:20 CEST)

Show abstract| Download PDF| Share

Mount Hamiding Protected Forest is located in North Halmahera Regency, North Maluku Province, the Wallace zone has an important role in providing protection functions, life support systems and regulating water management, preventing floods, preventing seawater intrusion, and controlling soil fertility. The protected forest area in the Wallace Zone is globally renowned for its endemic characteristics of flora and fauna. The condition of the protected forest of Mount Hamiding HMPF is currently experiencing anthropogenic damage as a result of forest encroachment, illegal logging, shifting cultivation, grazing and poaching to meet social needs. Anthropogenic damage has been in the spotlight for decades and has become a global issue. This study aims to determine damage to protected forests, changes in land cover, and mitigation of protected forest areas. This research uses quantitative and descriptive qualitative methods. Determination of research locations by purposive sampling. Parameters measured in this study were damage to protected forests, changes in land cover and area mitigation strategies. To identify forest damage, snowball sampling was carried out, and land cover changes through land cover data processing were obtained from the Ministry of Environment and Forestry of the Republic of Indonesia. Then using Imagery 7 ETM+ and 8 OLI to calculate changes in forested land to non-forested from 2006 -2021, analysis of land cover change using supervised classification, developing a strategy based on identity verification of forest damage and analysis of land cover change. The results showed that damage to protected forests was caused by anthropogenic disturbances in the form of forest encroachment, shifting cultivation, illegal logging, grazing and hunting of wild animals. Changes in land cover experienced the greatest damage in 2006-2021 amounting to 1,796.54 ha (16.17%). Strategic efforts are carried out using forest engineering, namely the agroforestry system and social engineering through community empowerment, namely training and outreach.

Preprint ARTICLE | doi:10.20944/preprints202305.1450.v1

Formulating Equations for Estimating Forest Stand Carbon Stock for Various Tree Species Groups at the Ngao Demonstration Forest, Northern Thailand

Narapong Sangram, Khwanchai Duangsathaporn, Yenemurwon Omule, Patsi Prasomsin, Kritsadapan Palakit, Pichit Lumyai

Subject: Biology And Life Sciences, Forestry Keywords: Carbon stock; Standing-tree carbon equation; Mae Huad Sector; Ngao Demonstration Forest

Online: 19 May 2023 (16:40:19 CEST)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202305.1389.v1

Tree Species Responses to Competition, Stress, and Disturbance Suggest Adaptive Relationships in the Hemi-Boreal Forest

Raimundas Petrokas, Michael Manton

Subject: Biology And Life Sciences, Forestry Keywords: adaptive strategies; competitiveness; stress tolerance; ruderalism; natural selection; forest dynamics; Lithuania

Online: 19 May 2023 (07:24:46 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202305.1324.v1

Ecological Factors Driving Tree Diversity across Spatial Scales in Temperate Forests, Northeast China

Yue Gu, Junhui Zhang, Wang Ma, Yue Feng, Leilei Yang, Zhuo Li, Yanshuang Guo, Guoqiang Shi, Shijie Han

Subject: Biology And Life Sciences, Forestry Keywords: Biodiversity; Tree richness; Shannon index; Simpson index; Ecological mechanism; Climate; Topography; Forest structure

Online: 18 May 2023 (10:15:38 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202304.1252.v1

Analysis of the Effects of Windthrows on the Microbiological Properties of the Forest Soils and Their Natural Regeneration

Silviu Ioan Sicoe, Ghiță Cristian Crainic, Alina Dora Samuel, Marinela Florica Bodog, Călin Ioan Iovan, Sorin Curilă, Ioan Ovidiu Hâruța, Eugenia Șerban, Lucian Sorin Dorog, Nicu Cornel Sabău

Subject: Biology And Life Sciences, Forestry Keywords: windthrow; organic Carbon; dehydrogenase activity; number of fungi; natural regeneration

Online: 30 April 2023 (03:45:06 CEST)

Show abstract| Download PDF| Share

Windthrows in the forestry fund, which have become more frequent due to the increase in extreme weather events, have had and continue to have negative economic and ecological effects, making them a pressing issue in forestry research. Their urgency has been amplified in light of the need to develop sustainable forest management systems. The main objectives of this study are to evaluate the effects of windthrows on some microbiological properties of forest soils and to monitor the evolution of the degraded tree regeneration, 4 years after the event, for three tree species: Norway spruce (Picea abies L.), sessile oak (Quercus petraea), and European beech (Fagus sylvatica L.). The experimental plot used is arranged in dispersed blocks and subdivided plots, with three repetitions, bifactorial, factor A representing the tree species, and factor B the windthrows: in two situations: affected (AW) and not affected by felling (WW). Three representative soil profiles were studied for each tree species, including dehydrogenase activity (DA) and the number of fungi (NF) in the organic horizon at the soil surface. Dehydrogenase activity was determined by the extraction of triphenylformazan, and NF was evaluated using the Plate Count Method (Petri plates) and the Sabouraud Agar culture medium. The values of Current Dehydrogenase Activity (CDA) and Potential Dehydrogenase Activity (PDA) did not show significant statistical differences in relation to the windthrow factor, but were distinctly significant (p < 0.01) for the tree species factor. On the other hand, NF showed statistical significance for both tree species and windthrows factors, at a level of p < 0.01. Correlations were highlighted between the differences in AW and WW of CDA, PDA, and NF with the number of naturally regenerated seedlings (NRS), and the type of soil. The regressions established between NRS and the differences in CDA and PDA, the dependence of the differences in PDA on the differences in NF, and the regression between the differences in NF and the type of soil demonstrate the importance of soil characteristics in the natural regeneration process of the main tree species - Norway spruce, sessile oak, and European beech. Stimulating NRS in AW forests and increasing the volume of terrestrial organic carbon (TOC) biomass is directly dependent on soil fertility, primarily determined by soil organic carbon (SOC), which accumulates in the soil as a result of organic matter, deposited on the surface. Sustainable forest management of AW plots should stimulate the accumulation of SOC, including the partial or total preservation of dead trees, provided that the attack of specific diseases and pests is avoided.

Preprint ARTICLE | doi:10.20944/preprints202304.1224.v1

The Most Suitable Calcium Concentration for Growth Varies among Different Tree Species – Taking Pinus tabuliformis, Pinus sylvestris var. mongolica, Populus, and Morus alba as Examples

Hui Li, Yaoyao Zhao, Xiaohang Weng, Yongbin Zhou, Songzhu Zhang, Liying Liu, Jiubo Pei

Subject: Biology And Life Sciences, Forestry Keywords: Optimum calcium concentration; growth; photosynthesis; water use efficiency; stress resistance

Online: 29 April 2023 (07:44:57 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202304.0970.v1

Assessing the Likelihood of Failure Due to Stem Decay Using Different Assessment Techniques

Ari Okun, Nicholas J. Brazee, James R. Clark, Michael J. Cunningham-Minnick, Daniel C. Burcham, Brian Kane

Subject: Biology And Life Sciences, Forestry Keywords: tree risk assessment; decay; resistance drilling; tomography; tree risk assessment qualification; tree stem

Online: 26 April 2023 (07:41:38 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202304.0582.v1

Study on the Ecology, Biology and Ethology of the Invasive Species Corythucha arcuata Say, 1832 (Heteroptera: Tingidae), a Danger to Quercus sp. in the Climatic Conditions of the City of Sibiu, Romania

Cristina Stancă-Moise, George MOISE, Mihaela Rotaru, Ghizela Vonica, Mirela Stanciu, Dorina Sanislau

Subject: Biology And Life Sciences, Forestry Keywords: Oak lace bug; invasive alien species; Corythucha arcuata; Sibiu County; Romania

Online: 19 April 2023 (09:53:38 CEST)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202304.0549.v1

Multi-Omics Techniques for Forest Plant Breeding

Mingcheng Wang, Rui Li, Qi Zhao

Subject: Biology And Life Sciences, Forestry Keywords: forest plants; genetic breeding; omics technologies; multi-omics integration; gene regulatory networks

Online: 19 April 2023 (05:31:46 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202304.0337.v1

Entomopathogenic Potential of Bacillus velezensis CE 100 for the Biological Control of Termite Damage in Wooden Architectural Buildings of Korean Cultural Heritage

Jae-Hyun Moon, Henry B. Ajuna, Sang-Jae Won, Vantha Choub, Su-In Choi, Ju-Yeol Yun, Won Joung Hwang, Sang Wook Park, Young Sang Ahn

Subject: Biology And Life Sciences, Forestry Keywords: wooden buildings; national treasures; termite damage; bacterial entomopathogenic; cuticle disintegration; termiticidal effect

Online: 14 April 2023 (03:17:20 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202304.0266.v1

Effects of Species Mixture on Growth, Biomass of Understory Vegetation, Soil Properties, and Bacterial Diversity of Acacia cincinnata Plantation

Taijun Li, Yangyang Sun, Liyan Wang, Rui Xu, Mulualem Tigabu, Ming Li, Dahui Wang

Subject: Biology And Life Sciences, Forestry Keywords: Acidobacterium; Acacia mangium; Eucalyptus robusta; mixed-species forest; soil biological property; soil nutrients

Online: 12 April 2023 (09:33:04 CEST)

Show abstract| Download PDF| Share

Establishment of mixed-forests has gained increasing attention as a way to optimize forest production, to improve ecological benefits and as a safety net for impacts of future climate uncertainties. However, practical knowledge about which species and what proportion of them should be mixed is still lacking. Thus, this study was conducted with the aim of identify suitable species for mixture with Acacia cincinnata. The mixture tested in the present study was A. cincinnata + Eucalyptus robusta (6:4), A. cincinnata + Acacia mangium (3:1) and monospecifc plantation of A. cincinnata established in 2014. After 7 years of growth, we analyzed the effects of species mixture on growth of tree species, understory vegetation and soil physico-chemical properties as well as bacterial community structure and diversity. The results showed that species mixture had no significant effect on growth characteristics, such as diameter and singletree volume of A. cincinnata. However, mixed-species planting increased the total stocking volume compered to monospecific plantation of A. cincinnata. Furthermore, stand mixture significantly increased species diversity, biomass and nutrient stocks in the understory vegetation. The soil of mixed stand of A. cincinnata and A. mangium had the highest C and N contents, whereas the soil of pure A. cincinnata stand had the highest P content. The diversity of soil bacterial community were the highest in the mixed stand of A. cincinnata and E- robusta, followed by pure A. cincinnata stand and A. cincinnata + A. mangium stand. The relative abundance of Proteobacteria and Actinobacteria was higher in soils of mixed stands. Furthermore, the relative abundance of Firmicutes was high in the soil of A. cincinnata + A. mangium while the relative abundance of Verrucomicrobia was high in A. cincinnata + E. robusta stand. As a whole, the study demonstrated that establishing mixed-species plantation enhance the diversity and composition of understory vegetation, soil physico-chemical and soils bacterial community; thereby increasing biodiversity, nutrient cycling and carbon sequestration in the biomass and soil. From the viewpoints of forest productivity and ecological benefits, it is advisable to establish a mixed plantation of A. cincinnata and A- mangium in southern China. As a whole, our work revealed that the sustainability of mixed-species plantation relies on the interactions between soil attributes, vegetation, and bacterial community.

Preprint ARTICLE | doi:10.20944/preprints202304.0257.v1

Response of C:N:P in the plant-litter-soil system to phosphorus addition and stoichiometric homeostasis of plant tissues in a subtropical slash pine plantation

Ting Jia, Min Yi, Fusheng Chen, Meng Lai, Cangfu Jin, Zixuan Nie, Linjin Zhou, Jinwen Xie, Lu Zhang

Subject: Biology And Life Sciences, Forestry Keywords: Pinus elliottii Engelm; phosphorus addition; plant-litter-soil system; ecological stoichiometry; stoichiometric homeostasis

Online: 12 April 2023 (08:21:44 CEST)

Show abstract| Download PDF| Share

Preprint COMMUNICATION | doi:10.20944/preprints202304.0077.v1

Attitudes towards Tree Protections, Development, and Urban Forest Incentives among Florida (United States) Residents

Andrew Koeser, Richard Hauer, Michael Andreu, Robert Northrop, Deborah Hilbert

Subject: Biology And Life Sciences, Forestry Keywords: green infrastructure; tree by-laws; tree ordinances; urban forest governance

Online: 6 April 2023 (08:38:44 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202304.0033.v1

Leaf Phenological Responses of Juvenile Beech and Oak Provenances to Elevated Phosphorus

Marko Bačurin, Saša Bogdan, Ida Katičić Bogdan, Krunoslav Sever

Subject: Biology And Life Sciences, Forestry Keywords: Fagus sylvatica; Quercus petraea; flushing; leaf senescence; nutrition; phosphorus effect; phenology shift

Online: 4 April 2023 (02:36:38 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202303.0354.v1

High Efficiency and High Stability for SHG in a Nd : YVO₄Laser with a KTP Intracavity and Q-switching through Harmonic Modulation

Samuel Mardoqueo Afanador Delgado, Juan Hugo García López, Rider Jaimes Reátegui, Vicente Aboites, José Luis Echenausía Monroy, Guillermo Huerta-Cuellar

Subject: Biology And Life Sciences, Forestry Keywords: Nd : YVO4 laser; Second Harmonic Generation; Q-switched Lasers; Frequency doubled

Online: 20 March 2023 (08:51:44 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202303.0247.v1

Trees on Farms Provide Both Wood Value and Conservation Value in a Tropical Forest System: A Case Study from Western Kenya

Anton Espira, Christopher Kefa, Mark Lung, Andrew J. Gregory

Subject: Biology And Life Sciences, Forestry Keywords: Kakamega Rain Forest; Conservation; Biodiversity; Complementarity; Agroforestry

Online: 14 March 2023 (06:14:00 CET)

Show abstract| Download PDF| Share

A primary challenge facing conservationists is reconciling the human needs of forest adjacent communities with the needs of conserving forest biodiversity, especially in tropical regions with growing populations of rural poor. Agroforestry has the potential to simultaneously provide for human needs and enhance forest biodiversity, but the complex interactions and feedbacks between the social and natural dimensions are relatively undescribed and thus systematic implementation is rare. The attributes of trees on farms required for human needs and conservation value may conflict. For example, exotic species in monoculture may provide the most economic value for farmers, while relic or planted indigenous tree mixtures may be more valuable for biological conservation. The objective of this study was to explore whether agroforestry practices in a moist tropical forest ecosystem in Kenya can simultaneously provide timber and fuelwood value to small-holder farmers while extending forest tree biodiversity. We described the agroforestry attributes on farms around a tropical forest, assessed the relationship between number and biomass of timber/fuelwood trees and tree biodiversity, and explored the relationships between forest tree diversity attributes and farm tree diversity attributes on a landscape scale using spatial analysis. We found that the diversity and number of trees on farms in this area are extensive yet variable, but that no significant relationship exists between the number of timber/fuelwood trees and tree diversity. This suggests that the two values of agroforestry may not be in conflict, due mainly to the high diversity of trees used for fuelwood. We also found that trees on farms in the larger landscape add to the conservation value of forest tree biodiversity and could be important components in conservation management. If agroforestry is to play an increasingly active role in conserving biodiversity in human-dominated landscapes, particularly in areas of dense subsistence farmer populations, increase recognition needs to be given to farmer’s perception of the value of trees and their selection of what trees to plant or maintain.

Preprint ARTICLE | doi:10.20944/preprints202303.0075.v1

A Framework Proposal for the Ex-post Evaluation of a Solution-Driven Pes Scheme. The Case of Medvednica Nature Park

Stefano Bruzzese, Iva Tolić Mandić, Sanja Tisma, Simone Blanc, Filippo Brun, Dijana Vuletić

Subject: Biology And Life Sciences, Forestry Keywords: Forest ecosystem services; Tourism; Recreational activities; Health; Methodological framework; Nature park; Protected area

Online: 3 March 2023 (13:31:15 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202302.0280.v1

A Multicriteria Analysis to Support Natural Resource Governance. The Case of Chestnut Forests

Stefano Bruzzese, Simone Blanc, Silvia Novelli, Filippo Brun

Subject: Biology And Life Sciences, Forestry Keywords: SWOT; AHP; A’WOT; decision-making; complex decisions; forest; chestnut valorisation

Online: 16 February 2023 (09:07:13 CET)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202302.0134.v1

Why Healthy Pine Seedlings Die After They Leave the Nursery

David B. South, Tom E Starkey, Al Lyons

Subject: Biology And Life Sciences, Forestry Keywords: planting depth; drought; freeze injury; herbivory; mortality; survival; insects

Online: 7 February 2023 (14:01:52 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202302.0041.v1

Prioritizing Tree Based Land Management Options for Optimizing Carbon Sink in the Indian sub-Himalayan Region

Tanusri Dey, Dinesha S, Manendra Singh, Arshad A, Mendup Tamang, Shahina N N., Arun Jyoti Nath, Gopal Shukla, Sumit Chakravarty

Subject: Biology And Life Sciences, Forestry Keywords: Land use; landscape; climate change; Carbon; sub-humid tropic; Himalayas

Online: 2 February 2023 (09:35:57 CET)

Show abstract| Download PDF| Supplementary Files| Share

Land resources have been under tremendous anthropogenic pressure with the consequence of their degradation. It is therefore necessary that the land resources must be managed effectively for sustainable development. Different from the developed countries, carbon inventories and data bank to monitor carbon sequestration potential of different ecosystems are unavailable in India. Micro-level studies are essential for sustainable land use management for a land scarce nation like India. To achieve the desirable goal of the present study, a total of 33 tree-based land uses were identified from forested and agricultural landscapes. Of these total land uses, five were in forest landscapes and rest in agricultural landscapes categorized into forest tree plantations (8 land uses), agroforestry (nine land uses), commercial crop plantations (six land uses) and fruit orchards (five land uses). A stratified random nested quadrate sampling method was adopted for vegetation analysis of the different land uses. The SOC, biomass and carbon accumulation in the tree-based land uses were significantly different from each other. Mixed forest soil had the highest amount of SOC, primary nutrients, standing biomass carbon, and ecosystem carbon. Positive correlations were observed between SOC, total standing biomass, litter production, and ecosystem carbon. The sequence of best tree based land uses in terms of total SOC (up to 60 cm depth), total plant biomass, total plant biomass carbon and ecosystem carbon was mixed species forest (126.67, 781.21, 390.61 and 517.27) > sole tree species stands in forest landscape (109.71, 192.56, 96.28 and 205.98) > tea plantations (103.19, 77.07, 38.54 and 141.74) > homegardens (90.34, 97.38, 48.69 and 139.02) > mixed plantation of Anthocephalus cadamba + Swietenia macrophylla (60.07, 111.86, 55.93 and 116.02) > Swietenia macrophylla based agroforestry (62.49, 83.82, 41.91 and 104.40) > mixed plantation of Tectona grandis + Milvus migrans (60.0, 85.97, 42.99 and 102.90). Similarly, the order of the major land uses was forest > commercial crop plantation > forest tree plantations > agroforestry > fruit orchards. The overall average ecosystem carbon accumulation in forests was 3.24 times more than the land uses in agricultural landscapes. The ecosystem carbon accumulation in the tree-based land uses in both forest and agricultural landscape was highly variable and was significantly different from each other. Land use conversion from forest to agriculture can reduce more than half of the carbon stock, but converting into homegardens, tree plantations or agroforestry enhanced carbon storage of the land use systems. The present findings can be used as baseline information for developing prediction models for probable effects of different land use, future intervention and sustainable management of land use systems.

Preprint ARTICLE | doi:10.20944/preprints202301.0548.v1

Achieving Sustainable Development Goals in Ghana: The Contribution of Non-timber Forest Products Towards Economic Development in the Eastern Region

Yaw Okyere Akomaning, Samuel Antwi Darkwah, Iva Živělová, Petra Hlaváčková

Subject: Biology And Life Sciences, Forestry Keywords: Non-Timber Forest Product; Sustainable Development Goals; Sustainable Forest Management; forest policy; forest degradation; endangered species

Online: 30 January 2023 (09:19:49 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202301.0464.v1

Not Hydraulic but an Adsorption Water Transport occurs in the Xylem of Land Plants

Karlheinz Hahn

Subject: Biology And Life Sciences, Forestry Keywords: Adsorption water movement; adsorption hypothesis; plant long-distance water transport; thermodynamic water movement; not-hydraulic movement

Online: 26 January 2023 (03:02:38 CET)

Show abstract| Download PDF| Share

Ad- and desorption forces move water in living xylem/wood from the root to the leaf thermodynamically. The doctrine of plant water transport, the so-called cohesion- or cohesion-tension theory, postulates however that the process is physically based on a hydraulic fluid flow with negative pressure in water conducting tubes originating from the leaves. Lower pressure (suction) driven volume flow is physically a branch of mechanics. Moisture absorbed from the soil via the root is thought to be pulled up the stem by the leaves in continuous and tensioned threads of water. It is assumed that the hydraulic Hagen/Poiseuille flow law, derived for tubes, applies in the xylem. In a textbook of botany you can find the opinion: "Just as the pipes of a water pipe supply necessary water to each household, leaf nerves supply water and nutrient salts to each individual cell.” (Translated from German). Many plant physiologists consider this hydraulic principle to be correct, but it does not remain unchallenged. Doubts are repeatedly expressed. The question arises: How does water transport actually take place? It is shown how the diffusive/adsorption transport principle works. The partial dehydration (desorption) of the plant, driven by the diffusive process of transpiration, forms a combined concentration and adsorption-site gradient for water in the xylem matrix. Especially with open stomata the lowest moisture concentration and the highest number of adsorption-sites for water (sites with free van der Waals forces), can be found in the mesophyll cell walls at the liquid/vapor boundary in the leaf. The water taken up by the root moves spontaneously in the direction of this boundary and can thus partially or completely compensate for the existing concentration- and adsorption-site- differences for water. Thus, a thermodynamic overlapping diffusive/adsorptive movement of moisture along the stationary xylem/wood takes place. After the introduction and a review of some controversies with cohesion theory, the physiology of the processes associated with long-distance water displacement is mentioned below. A thermodynamic adsorption hypothesis of the natural water transport in plants, based on known facts, is presented.

Preprint ARTICLE | doi:10.20944/preprints202301.0331.v1

Digital Approach to Successful Business Plans in Forestry and Related Fields

Eva Abramuszkinová Pavlíková, Jitka Meňházová, Kristaps Lešinskis

Subject: Biology And Life Sciences, Forestry Keywords: business plan; artificial intelligence; forester management; young entrepreneurs

Online: 18 January 2023 (09:33:59 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202301.0199.v1

Effect of Nitrogen Fertilization on Tree Growth and Mineral Content in Soil and Cherry Leaves (Prunus cerasus L.)

Krzysztof Rutkowski, Grzegorz P. Łysiak

Subject: Biology And Life Sciences, Forestry Keywords: Prunus cerasus; ammonium nitrate; chlorophyll; TCSA; mineral content; carotenoids

Online: 11 January 2023 (10:40:29 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202212.0584.v1

Differentially Expressed Conserved Plant Vegetative Phase-change Related Micro RNAs as Markers of Juvenility for Silver Birch In Vitro Propagation

Baiba Krivmane, Ineta Samsone, Dainis Edgars Ruņģis

Subject: Biology And Life Sciences, Forestry Keywords: miRNA156; micropropagation; tree breeding; recalcitrant; woody plants; perennial plants

Online: 30 December 2022 (10:18:33 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202212.0575.v1

Exploitation of Non-Timber Forest Products in the Eastern Part of DR Congo

Serge MUKOTANYI MUGISHO, Daniel Iragi Muhindo, Alphonse Zihalirhwa Balezi, Julien Bahizire Ndeko, Gérard Mugisho Imani, Clément Soloum Teteli, Landry Ntaboba Cizungu

Subject: Biology And Life Sciences, Forestry Keywords: NTFP; sustainable exploitation; use of NTFP

Online: 30 December 2022 (08:34:09 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202212.0357.v1

Calibrating a Process-based Model to Enhance Robustness in Carbon Sequestration Simulations: the Sase of Cedrus Atlantica (Endl.) Manetti ex Carrière

Issam Boukhris, Said Lahssini, Alessio Collalti, Said Moukrim, Monia Santini, Tommaso Chiti, Riccardo Valentini

Subject: Biology And Life Sciences, Forestry Keywords: Cedrus altlantica; carbon sequestration; DE-MC (Differential Evolution - Markov chains); parameter optimization

Online: 20 December 2022 (07:35:53 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202210.0332.v1

Potentials Of Chilghoza Nuts (Pinus gerardiana) in the Economic Uplifts of Mountainous Rural Communities

Syed Adnan, Alam Zeb

Subject: Biology And Life Sciences, Forestry Keywords: Pine nuts; Neja nuts; NTFPs; Non-timber forest products; Socio-economic importance; Public awareness

Online: 21 October 2022 (10:22:17 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202210.0103.v1

Observation of External Wounding on Green Ash (Fraxinus pennsylvanica Marshall) Trees Associated with Tree Injection Systems

Richard J. Hauer, John J. Ball, Eric North

Subject: Biology And Life Sciences, Forestry Keywords: Arboriculture; Canker and Cracking; Emerald Ash Borer; Tree Biology; Urban Forestry

Online: 9 October 2022 (03:13:32 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202209.0171.v1

Seed Pests of Woody Legume Seed Beetles (Bruhinae: Chrysomelidae, Coleoptera) and the Potential of Measures of Host Plant Biocontrol in the Republic of Serbia

Renata Gagić-Serdar, Miroslava Marković, Ilija Đorđević, Ljubinko Rakonjac, Aleksandar Lučić

Subject: Biology And Life Sciences, Forestry Keywords: Bruhinae; seed beetles; biocontrol; legumes; parasitoids; Serbia

Online: 13 September 2022 (10:26:44 CEST)

Show abstract| Download PDF| Share

In order to reduce negative effects of application of chemical agents, biological control is becoming increasingly important. This paper therefore focused on research of effects of certain types of seed beetles on control of invasive plant species in Serbia. Numerous sources suggest that for legumes and seed beetles Bruhinae: Chrysomelidae the rule of coexistence in pairs applies in all ecozones. The species rely on one another, primarily in terms of geographical origin or association, thus one plant species is frequently attacked by only one type of seed beetle. Being confirmed to be expressly monophagous, bruchins have proven to be excellent potential agents of control of invasive and harmful host plants (to date, false indigo-bush in Serbia), as is the case of the seed beetle of Persian silk tree, which has been registered as monophagous in Serbia for the first time, making it the number one potential agent in control of the host plant – Persian silk tree in Greece. Standard entomological methods were used, from sample collections, to experiments in photo-eclectors, during dissection counting and placing the seed for development inside by the method 1 flacon – 1 seed, to maintain precise records of the origin of the emerged insects and their numbers, within standard laboratory conditions. The conditions favoring the expansion of the plant have already developed due to climatic circumstances (changes in terms of heat extremes – global warming and precipitation), and it is now gradually becoming invasive. Parasitoid accumulation of roughly one-third (30%) of the total number of false indigo-bush pods makes the false indigo-tree seed beetle a viable candidate for the status of a bioagent. The species has the extreme potential for the application of biological measures which is now quickly gaining importance, all for the purposes of developing the integral control of the plants. Species Acanthoscelides pallidipennis and Bruchidius terrenus have been recorded in this research for the first time in Serbia, while calendars of development have been made for the researched bruchin species, which represents a significant scientific contribution.

Preprint ARTICLE | doi:10.20944/preprints202208.0459.v1

Growth Response of Tetrapluera tetraptera Schum (Thonn) Seedlings to Organic Fertilizers

Adeola Kilasho, James Oluborode, Vincent Jackson, Chimdi Ogwo, Chioma Ogbuka, Patricia Shomide, Emmanuel Oyediran

Subject: Biology And Life Sciences, Forestry Keywords: growth and yield; Tetrapluera tetraptera; organic fertilizers; seedlings

Online: 26 August 2022 (10:18:12 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202207.0285.v1

Exploring the Potential of Machine Learning for Modelling Growth Dynamics in an Uneven-Aged Forest at the Level of Diameter Classes: A Comparative Analysis of Two Modelling Approaches

Gaspard Dumollard

Subject: Biology And Life Sciences, Forestry Keywords: Uneven-aged forest management; Forest growth modelling; Machine learning; Diameter distribution; Silvicultural decision support

Online: 19 July 2022 (10:03:36 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202207.0183.v1

Comparative Effect of Cow Dung and Poultry Manure on the Growth of Khaya senegalensis (Desr.) Seedlings

James Oluborode, Adeola Kilasho, Adewale Adebiyi

Subject: Biology And Life Sciences, Forestry Keywords: growth and yield; Khaya senegalensis; organic fertilizers; seedlings

Online: 12 July 2022 (09:26:44 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202207.0007.v1

Characterization of Host-Specific Genes from Pine- and Grass-Associated Species of the Fusarium Fujikuroi Species Complex

Claudette Dewing, Magrieta A. van der Nest, Quentin C. Santana, Robert H. Proctor, Brenda D. Wingfield, Emma T. Steenkamp, And Lieschen De Vos

Subject: Biology And Life Sciences, Forestry Keywords: Fusarium fujikuroi species complex; Fusarium circinatum; Fusarium temperatum; pitch canker; comparative genomics; host-specificity; horizontal gene transfer; subtelomeres

Online: 1 July 2022 (08:04:13 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202203.0330.v2

Two Manifestations of Market Premium in the Capitalization of Carbon-Forest Estates

Petri P. Kärenlampi

Subject: Biology And Life Sciences, Forestry Keywords: capital return rate; expected value; carbon storage; carbon rent

Online: 26 April 2022 (09:45:34 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202203.0330.v1

Two Manifestations of Market Premium in the Capitalization of Carbon-Forest Estates

Petri P. Kärenlampi

Subject: Biology And Life Sciences, Forestry Keywords: capital return rate; expected value; carbon storage; carbon rent

Online: 24 March 2022 (10:41:22 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202203.0269.v1

Effects of Litter Decomposition on Soil N in Picea Mongolica Forest at Different Forest Ages

Yunchao Liu, Lixin Chen, Wenbiao Duan, Yongan Bai, Xiaolan Li

Subject: Biology And Life Sciences, Forestry Keywords: Horqin sandy land; Picea mongolica forest; NH4+-N; NO3-—N; Seasonal dynamics

Online: 18 March 2022 (15:17:41 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202203.0220.v1

Climatic and Anthropogenic Drivers of Forest Succession in the Iberian Pyrenees during the Last 500 Years: A Statistical Approach

Valentí Rull, Teresa Vegas-Vilarrúbia

Subject: Biology And Life Sciences, Forestry Keywords: mountain forests; regional succession; palynology; paleoclimate; response lags; human impact; last centuries

Online: 15 March 2022 (15:34:19 CET)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202201.0351.v1

Living With The Impact Of Ash Dieback – Local Mitigation Practices Against Hymenoscyphus fraxineus on the Island of Ireland

Anna Tiley, Richard O'Hanlon

Subject: Biology And Life Sciences, Forestry Keywords: Ash; ash dieback; disease management; Fraxinus excelsior; fungal plant pathogen; Hymenoscyphus fraxineus; mycology; plant pathology; plant pathogen; plant science; tree disease

Online: 24 January 2022 (11:50:43 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202201.0007.v1

Biochar Rescues Native Trees in a Global Biodiversity Hotspot

Leeladarshini Sujeeun, Sean C. Thomas

Subject: Biology And Life Sciences, Forestry Keywords: allelopathy; biochar; invasive species; island ecosystems; Psidium cattleianum

Online: 4 January 2022 (12:37:04 CET)

Show abstract| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202112.0149.v2

Genome-Wide Identification and Analysis of Cell Cycle Genes in Betula pendula

Yijie Li, Song Chen, Yuhang Liu, Haijiao Huang

Subject: Biology And Life Sciences, Forestry Keywords: Betula pendula; cell cycle; Cyclin; RNA-seq

Online: 23 December 2021 (11:34:00 CET)

Show abstract| Share

Preprint ARTICLE | doi:10.20944/preprints202112.0355.v1

Differences in Environmental and Hormonal Regulation of Growth Responses in Two Highly Productive Hybrid Populus Genotypes

Jonas Žiauka, Greta Striganavičiūtė, Iwona Szyp-Borowska, Sigutė Kuusienė, Marzena Niemczyk

Subject: Biology And Life Sciences, Forestry Keywords: dark treatment; hybrid poplar; plant hormone; rooting; shoot culture

Online: 22 December 2021 (11:46:18 CET)

Show abstract| Share

Preprint ARTICLE | doi:10.20944/preprints202112.0149.v1

Genome-Wide Identification and Analysis of Cell Cycle Genes in Betula pendula

Yijie Li, Song Chen, Yuhang Liu, Haijiao Huang

Subject: Biology And Life Sciences, Forestry Keywords: Betula pendula; cell cycle; Cyclin; RNA-seq

Online: 9 December 2021 (10:38:21 CET)

Show abstract| Share

Preprint ARTICLE | doi:10.20944/preprints202111.0505.v1

Analysis of Genotype-Interaction of a 4-Year-Old Populus euramericana Using BLUP-GGE Technique

Ning Liu, Changjun Ding, Bo Li, Mi Ding, Xiaohua Su, Qinjun Huang

Subject: Biology And Life Sciences, Forestry Keywords: Genotype and environment interaction; Muti-environment test; Genotype selection; BLUP-GGE; Populus euramericana

Online: 26 November 2021 (12:01:42 CET)

Show abstract| Share

Preprint ARTICLE | doi:10.20944/preprints202111.0311.v2

College Students’ Knowledge and Perspective Towards Biodiversity and its Conservation and Protection

Ericson Esquibel Coracero, Mark Christian Facun, Marlon Lingon, Kristina Lolong, Michelle Lugayan, Karl Benz Montesines, Lesel Sangalang, Mark John Suniega

Subject: Biology And Life Sciences, Forestry Keywords: biodiversity education; knowledge; perspective; biodiversity conservation; biodiversity protection

Online: 18 November 2021 (17:20:15 CET)

Show abstract| Share

Preprint ARTICLE | doi:10.20944/preprints202111.0311.v1

College Students’ Knowledge and Perspective of Towards Biodiversity and its Conservation and Protection

Ericson Esquibel Coracero

Subject: Biology And Life Sciences, Forestry Keywords: biodiversity education; knowledge; perspective; biodiversity conservation; biodiversity protection

Online: 17 November 2021 (22:43:14 CET)

Show abstract| Share

Preprint ARTICLE | doi:10.20944/preprints202111.0158.v1

Difference in Rhizosphere Soil Bacterial Community was among Six Cinnamomum camphora Chemotypes

Zufei Xiao, Beihong Zhang, Yangbao Wang, Zhinong Jin, Feng Li, Ji Peng, Jiang Rui

Subject: Biology And Life Sciences, Forestry Keywords: Cinnamomum camphora; chemotype; soil nutrient; soil bacterial community diversity and structure

Online: 8 November 2021 (15:20:35 CET)

Show abstract| Share

Preprint ARTICLE | doi:10.20944/preprints202110.0239.v1

Evidence for the Widespread Occurrence of Bacteria Implicated in Acute Oak Decline from Incidental Genetic Sampling

Louise Gathercole, Gabriele Nocchi, Nathan Brown, Timothy Coker, William Plumb, Jonathan Stocks, Richard Nichols, Sandra Denman, Richard Buggs

Subject: Biology And Life Sciences, Forestry Keywords: Quercus; acute oak decline; phyllosphere; Brenneria goodwinii; Gibbsiella quercinecans; Lonsdalea britannica; Rahnella victoriana

Online: 18 October 2021 (10:50:45 CEST)

Show abstract| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202110.0120.v1

Sever Oligospermia Treatment with Testicular Sperm Using ICSI

Mustafa ZAKARIA, , Aya AL-IBRAHEEMI, Mohammed ENNAJI, Wassym R.SENHAJI, Mohammed ZARQAOUI, Hayder A.MOSSA, Modou MAMOUNE MBAYE, Noureddine LOUANJLI

Subject: Biology And Life Sciences, Forestry Keywords: Sever oligospermia; Medication and cancer treatment influence on oligozoospermia; ICSI for men with sever oligozoospermia

Online: 7 October 2021 (14:13:32 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202110.0109.v1

Availability and Environmental Performance of Wood for a Second-Generation Biorefinery

Cecilia Rachid-Casnati, Fernando Resquín, Leonidas Carrasco-Letelier

Subject: Biology And Life Sciences, Forestry Keywords: Eucalyptus; EROI; carbon footprint; soil erosion; bioethanol

Online: 6 October 2021 (15:20:34 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202109.0224.v1

Drought Stress Described by Transcriptional Responses of Picea Abies under Pathogen Heterobasidion Parviporum Attack

Xenia Hao-Yi Yeoh, Blessing Durodola, Kathrin Blumenstein, Eeva Terhonen

Subject: Biology And Life Sciences, Forestry Keywords: Drought; Norway spruce; Heterobasidion; RNA-seq; qRT-PCR

Online: 14 September 2021 (08:19:04 CEST)

Show abstract| Download PDF| Supplementary Files| Share

The major threats to the sustainable supply of forest tree products are adverse climate, pests and diseases. Climate change, exemplified by increased drought, poses a unique threat to global forest health. This is attributed to the unpredictable behavior of forest pathosystems, which can favor fungal pathogens over the host under persistent drought stress conditions in the future. Currently, the effects of drought on tree resistance against pathogens are hypothetical, thus research is needed to identify these correlations. Norway spruce (Picea abies) is one of the most economically important tree species in Europe, and is considered highly vulnerable to changes in climate. Dedicated experiments to investigate how disturbances will affect the Norway spruce - Heterobasidion sp. pathosystem are important, in order to develop different strategies to limit the spread of H. annosum s.l. under the predicted climate change. Here, we report a transcriptional study to compare Norway spruce gene expressions to evaluate the effects of water availability and the infection of Heterobasidion parviporum. We performed inoculation studies of three-year-old saplings in a greenhouse (purchased from a nursery). Norway spruce saplings were treated in either high (+) or low (-) water groups: high water group received double the water amount than the low water group. RNA was extracted and sequenced. Similarly, we quantified gene expression levels of candidate genes in biotic stress and jasmonic acid (JA) signaling pathways using qRT-PCR, through which we discovered a unique preferential defense response of H. parviporum-infected Norway spruce under drought stress at the molecular level. Disturbances related to water availability, especially low water conditions can have negative effects on the tree host and benefit the infection ability of the pathogens in the host. From our RNA-seq analysis, 114 differentially expressed gene regions were identified between high (+) and low (-) water groups under pathogen attack. None of these gene pathways were identified to be differentially expressed from both non-treated and mock-control treatments between high (+) and low (-) water groups. Finally, only four genes were found to be associated with drought in all treatments.

Preprint ARTICLE | doi:10.20944/preprints202109.0001.v1

Drivers of Biodiversity Conservation in Sacred Groves: A Comparative Study of Three Sacred Groves in Southwest Nigeria.

Samuel Adeyanju, Janette Bulkan, Jonathan Onyekwelu, Guillaume Peterson St-Laurent, Robert Kozak, Terry Sunderland, Bernd Stimm

Subject: Biology And Life Sciences, Forestry Keywords: Sacred groves; biodiversity conservation; Community-based conservation; Indigenous People; Nigeria.

Online: 1 September 2021 (08:42:18 CEST)

Show abstract| Download PDF| Share

Globally, sacred groves represent a traditional form of community-based conservation system, recognized for their capacity to preserve areas that are of cultural and religious importance to local people. In most cases, the entire community takes on a watchdog role to guard against encroachment and unauthorized access either by its members or outsiders who might desecrate such sites. Our paper investigates the effects of different governance arrangements on three sacred groves in southwest Nigeria⎯Osun Osogbo Sacred Grove (UNESCO World Heritage Site); Idanre Hills (Nigerian National Monument) and Igbo-Olodumare (local cultural site)⎯on their socio-economic and religio-cultural benefits and contribution to biodiversity conservation. Using a mixed-methods design of a semi-structured questionnaire (n=167), key informant interviews (n=2), and focus groups (n=7), we collected data from local community members, traditional priests, sacred grove devotees and tourism officials. We found that customary institutions have guided reverence for sacralized spaces and wise utilization of their unique resources. The growing recognition of sacred groves has paved the way for socioeconomic rewards for individuals and government as cultural tourism increases. We found that the involvement of formal institutions alongside customary institutions in sacred grove management reinforces compliance with conservation laws within the sacred groves, especially where traditional norms are weak or may be disregarded. We discuss the implications of these observations and offer suggestions to improve community engagement, uphold traditional ecological knowledge, and develop ecotourism within the groves. We conclude that the co-existence of community-based conservation through a system of established traditional norms and prohibitions as well as formal government legislation and management, offers assurance for the long-term preservation of sacred groves and their biodiversity.

Working Paper SHORT NOTE

The Tripping Point – Minimum Planting Widths for Small-Stature Trees in Dense Urban Developments

Andrew K. Koeser, Richard J. Hauer, Deborah R. Hilbert, Robert J. Northrop, Hunter Thorn, Drew C. McLean, Allyson B. Salisbury

Subject: Biology And Life Sciences, Forestry Keywords: ecosystem disservices; green infrastructure; site design; tree selection; urban forestry

Online: 31 August 2021 (11:42:48 CEST)

Show abstract| Download PDF| Share

Preprint SHORT NOTE | doi:10.20944/preprints202108.0549.v1

The Tripping Point – Minimum Planting Widths for Small-Stature Trees in Dense Urban Developments

Andrew K. Koeser, Richard J. Hauer, Deborah R. Hilbert, Robert J. Northrop, Hunter Thorn, Drew C. McLean, Allyson B. Salisbury

Subject: Biology And Life Sciences, Forestry Keywords: ecosystem disservices; green infrastructure; site design; tree selection; urban forestry

Online: 30 August 2021 (14:39:04 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202107.0439.v2

Two Sets of Initial Conditions on Boreal Forest Carbon Storage Economics

Petri P. Kärenlampi

Subject: Biology And Life Sciences, Forestry Keywords: capital return rate deficiency; expected value; carbon storage; carbon rent; albedo effect

Online: 2 August 2021 (13:28:23 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202107.0439.v1

Two Sets of Initial Conditions on Boreal Forest Carbon Storage Economics

Petri P. Kärenlampi

Subject: Biology And Life Sciences, Forestry Keywords: capital return rate deficiency; expected value; carbon storage; carbon rent

Online: 20 July 2021 (09:56:34 CEST)

Show abstract| Download PDF| Share

Working Paper ARTICLE

Estimating carbon storage of Biteyu forest in the Gurage Mountain Chain, Ethiopia

Talemos Seta Shanka, Sebsebe Demissew

Subject: Biology And Life Sciences, Forestry Keywords: aboveground biomass, Belowground biomass, Biteyu forest, Carbon stocks, disturbance

Online: 14 July 2021 (14:07:11 CEST)

Show abstract| Download PDF| Share

The carbon stocks in the forests originated from the atmosphere and are accumulated in the organic matter of trees and soils. Forests play major roles in providing ecosystem services like climate change mitigation through carbon sequestration and nutrient flow dynamics. Therefore, the major objective of this study was to estimate carbon stocks of Biteyu forest by quantifying the aboveground biomass of trees, belowground carbon, soil carbon, and carbon stocks of litter pool. Systematic sampling technique was employed for vegetation and carbon data collection. The total of 10 line transects were laid along elevational gradients. The transects were 500 m apart and sampling plots were 300 m apart from each other. Each transect has comprised of a minimum of 4 plots to a maximum of six totaling 50 plots representing the forest for the investigation. A square sample plot of 900 m2 was used to collect vegetation data with a DBH ≥ 2.5 cm and a height of 2 m and above. To sample herbaceous vegetation in the forest floor, five smaller subplots of 1 m x 1 m = 1 m2 (four at the corner and one at the centre of the main plot) were established. The disturbance level was also determined using the cattle interference and selective cutting of trees. The appropriate allometric models were applied for both aboveground and belowground biomass estimations. The findings showed that cattle interference affects the forest understory from growing and recruitment. The mean of cattle interference was 4.77±2.12 per ha and the mean of wood stump was 26.67±9.37 per ha. The size class analysis showed that the smallest diameter class (2.5-10 cm) in the forests represented 37.05% of the total stem density. The diameter classes between 10 and 30 cm comprised a stem density of 41.08%. It was estimated that the total carbon stock of Biteyu forest was about 166.67 ± 16.4 ha-1. The carbon stock in AGB and BGB was estimated to be 87.13 ± 11.80 t ha-1 and 22.94 ± 2.84 t ha-1, respectively. Moreover, the contribution of soil and litter carbon pools to the total carbon in the forest ecosystem were 56.37 ± 1.73 and 0.26 ± 0.01 t ha-1 , respectively. From the present study it can be concluded that estimated mean carbon stock of the forest is smaller than that of other similar forests in the dry evergreen montane forest, which was attributed to the higher anthropogenic disturbances. Therefore, the interventions, which reduce the climate change effect, would be very important in the maintenance of forest ecosystem functioning.

Preprint ARTICLE | doi:10.20944/preprints202106.0229.v1

Overview of Gulf of Mottama Wetland (GoMW) & Size Distribution and Economic Status of Sea Bass in Myanmar

Phyoe Marnn, Chunguang He, Haider Ali, Soe Moe Tun, Khin Swe Wynn, Nyein Nyein Moe, Tao Yang, Nizeyimana Jean Claude, Muhammad Hasnain, Thaw Tar Oo, Yousef A. Al-Masnay

Subject: Biology And Life Sciences, Forestry Keywords: The Gulf of Mottama Wetland, Morphometric measurement, catch weight, size group

Online: 8 June 2021 (13:15:52 CEST)

Show abstract| Download PDF| Share

Working Paper ARTICLE

Research on Compatibility of Three Models Based on Combination Prediction of Pinus tabulaeformis Area

Hongke Hao, Junyu Zhang, Fan Miao, Songping Wu

Subject: Biology And Life Sciences, Forestry Keywords: Pinus tabulaeformis; Space instead of time; stand area; compatibility; combination prediction method

Online: 3 June 2021 (11:26:41 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202103.0673.v1

Growth and Yield of Three Boreal Tree Species

Petri P. Kärenlampi

Subject: Biology And Life Sciences, Forestry Keywords: Pinus silvestris; Picea Abies; Betula pendula; Betula pubescens

Online: 26 March 2021 (15:28:00 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202103.0047.v2

Aqueous Extracts Prepared with Young E. globulus Leaves as a Biocide - A Novel Post-Fire Management Strategy of Eucalyptus Stands

Mafalda Pinto, Cristiano Soares, Maria Martins, Bruno Sousa, Inês Valente, Ruth Pereira, Fernanda Fidalgo

Subject: Biology And Life Sciences, Forestry Keywords: Sustainable agriculture; allelopathy; biocidal potential; phytotoxic effects; weed management.

Online: 9 March 2021 (13:18:01 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202103.0047.v1

Aqueous Extracts Prepared with Young E. globulus Leaves as a Biocide - A Novel Post-Fire Management Strategy of Eucalyptus Stands

Mafalda Pinto

Subject: Biology And Life Sciences, Forestry Keywords: Sustainable agriculture; allelopathy; biocidal potential; phytotoxic effects; weed management.

Online: 2 March 2021 (09:12:01 CET)

Show abstract| Download PDF| Supplementary Files| Share

Preprint CONCEPT PAPER | doi:10.20944/preprints202102.0266.v1

Tannin: A New Insight into a Key Product for the Bioeconomy in Forest Regions

Mario Pagliaro, Lorenzo Albanese, Antonino Scurria, Federica Zabini, Francesco Meneguzzo, Rosaria Ciriminna

Subject: Biology And Life Sciences, Forestry Keywords: Tannin, forest regions; bioeconomy; polyphenols; chestnut; organic electrodes

Online: 10 February 2021 (16:18:39 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202101.0567.v1

Utilisation of Post-extraction Fir Wood Greenery Residues by the Bioconversion Method with the Production of Feed Additives

Olga O. Mamaeva, Elena. V. Isaeva

Subject: Biology And Life Sciences, Forestry Keywords: post-extraction residues; fir wood greenery; bioconversion; protein feed additive; Pleurotus pulmonarius; chemical composition

Online: 27 January 2021 (16:05:16 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202012.0477.v1

Assessment of Anthropogenic Impacts on Carbon Sequestration Potential of a Moist Semi-Deciduous Forest in Eastern Ghana

Felicity Bentsi-Enchill, Alexander Nii Moi Pappoe, Bernard Ekumah, Hugh Komla Akotoye

Subject: Biology And Life Sciences, Forestry Keywords: Above ground biomass; Anthropogenic; Below ground biomass; Carbon sequestration; Forest

Online: 18 December 2020 (15:18:24 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202009.0533.v1

Diurnal Pine Bark Structure Dynamics Affect Properties Relevant to Firebrand Generation

Scott Pokswinski, Michael R. Gallagher, Nicholas S. Skowronski, E. Louise Loudermilk, Joseph J. O'Brien, J. Kevin Hiers

Subject: Biology And Life Sciences, Forestry Keywords: firebrands; embers; bark; photogrammetry; fuel moisture

Online: 23 September 2020 (03:54:52 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202009.0432.v1

Floristic Study of Karnaphuli Range in Kaptai Reserve Forest, Rangamati, Bangladesh

Md. RIshad Abdullah, AKM Golam Sarwar, Md. Ashrafuzzaman, Md. Mustafizur Rahman

Subject: Biology And Life Sciences, Forestry Keywords: Flora; Vascular plants; Reserve forest; Threatened plants; Kaptai

Online: 18 September 2020 (11:22:12 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202009.0413.v1

Floristic Study of Karnaphuli Range in Kaptai Reserve Forest, Rangamati, Bangladesh

Md. RIshad Abdullah, AKM Golam Sarwar, Md. Ashrafuzzaman, Md. Mustafizur Rahman

Subject: Biology And Life Sciences, Forestry Keywords: flora; vascular plants; reserve forest; threatened plants; Kaptai

Online: 18 September 2020 (03:58:13 CEST)

Show abstract| Download PDF| Share

Working Paper REVIEW

Ten Golden Rules for Reforestation to Optimise Carbon Sequestration, Biodiversity Recovery and Livelihood Benefits

Alice Di Sacco, Kate Hardwick, David Blakesley, Pedro H. S. Brancalion, Elinor Breman, Loic Cecilio Rebola, Susan Chomba, Kingsley Dixon, Stephen Elliott, Godfrey Ruyonga, Kirsty Shaw, Paul Smith, Rhian J. Smith, Alexandre Antonelli

Subject: Biology And Life Sciences, Forestry Keywords: Afforestation; Climate change mitigation; Ecological Restoration; Forest landscape restoration; Large-scale tree planting; Natural regeneration; Nature-based solutions; Stakeholders participation

Online: 5 September 2020 (08:01:43 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202009.0090.v1

Tapering, Tree Rings and Biomass Production of Pinus roxburghii (Sarg.): A Dendrochronological Study

Hari Prasad Pandey, Narayan Prasad Pokhrel

Subject: Biology And Life Sciences, Forestry Keywords: age; coring sample; forest productivity; Nepal; P. roxburghii; stand structure

Online: 4 September 2020 (08:08:30 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202008.0724.v1

Gnotobiotic Evaluation of Dalbergia sissoo Genotypes for Resistance against Fusarium solani via Dual Culture Set up

Monika Chauhan, Ajay Thakur, Yashaswi Singh, M. Maqbool Rather, Nirmal S.K. Harsh

Subject: Biology And Life Sciences, Forestry Keywords: Shisham mortality; Fusarium solani f. sp. dalbergiae; in vitro screening; genetic variation; Fusarium wilt; plant-microbe interaction; gnotobiota

Online: 31 August 2020 (16:21:02 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202008.0349.v1

Assessments of Landowners’ Willingness to Accept Compensation for Participating in Forest Certification in Shandong China

Nana Tian, Neelam Poudyal, Fadian Lu

Subject: Biology And Life Sciences, Forestry Keywords: forest certification; willingness to accept; compensation; landowners; timber price increase

Online: 17 August 2020 (04:22:23 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202008.0136.v1

Assessing Restoration Potential of Fragmented and Degraded Fagaceae Forests in Meghalaya, North-East India

Prem Prakash Singh, Tamalika Chakraborty, Anna Dermann, Florian Dermann, Dibyendu Adhikari, Purna B. Gurung, Saroj Kanta Barik, Jürgen Bauhus, Fabian Ewald Fassnacht, Daniel C. Dey, Christine Rösch, *Somidh Saha

Subject: Biology And Life Sciences, Forestry Keywords: species composition; fagaceae; keystone; restoration potential; anthropogenic disturbance; fragmented forests; coppicing

Online: 6 August 2020 (05:09:00 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202008.0005.v1

Interactions between Phytophthora cactorum, Armillaria gallica and Betula pendula Seedlings Subjected to Defoliation

Justyna Anna Nowakowska, Marcin Stocki, Natalia Stocka, Sławomir Ślusarski, Miłosz Tkaczyk, João Maria Caetano, Mirela Tulik, Tom Hsiang, Tomasz Oszako

Subject: Biology And Life Sciences, Forestry Keywords: birch; chlorophyll; leaves’ damage; plants’ pathogens; roots; secondary metabolites

Online: 2 August 2020 (08:47:32 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202008.0001.v1

Drought Modulated Boreal Forest Fire Occurrence and Linkage with La Nina Events in Altai Mountains, Northwest China

Chunming Shi, Ying Liang, Cong Gao, Fengjun Zhao, Qiuhua Wang, Lifu Shu

Subject: Biology And Life Sciences, Forestry Keywords: boreal forest; forest fire; ENSO; Altai Mountain

Online: 1 August 2020 (16:18:27 CEST)

Show abstract| Share

Preprint ARTICLE | doi:10.20944/preprints202007.0154.v1

Structural Changes in Boreal Forests Can Be Quantified Using Terrestrial Laser Scanning

Tuomas Yrttimaa, Ville Luoma, Ninni Saarinen, Ville Kankare, Samuli Junttila, Markus Holopainen, Juha Hyyppä, Mikko Vastaranta

Subject: Biology And Life Sciences, Forestry Keywords: spatiotemporal; time series; bi-temporal; ground-based LiDAR; tree growth

Online: 8 July 2020 (11:56:08 CEST)

Show abstract| Share

Terrestrial laser scanning (TLS) has been adopted as a feasible technique to digitize trees and forest stands, providing accurate information on tree and forest structural attributes. However, there is limited understanding on how a variety of forest structural changes can be quantified using TLS in boreal forest conditions. In this study, we assessed the accuracy and feasibility of TLS in quantifying changes in the structure of boreal forests. We collected TLS data and field reference from 37 sample plots in 2014 (T1) and 2019 (T2). Tree stems typically have planar, vertical, and cylindrical characteristics in a point cloud, and thus we applied surface normal filtering, point cloud clustering, and RANSAC-cylinder filtering to identify these geometries and to characterize trees and forest stands at both time points. The results strengthened the existing knowledge that TLS has the capacity to characterize trees and forest stands in space and showed that TLS could characterize structural changes in time in boreal forest conditions. Root-mean-square-errors (RMSEs) in the estimates for changes in the tree attributes were 0.99-1.22 cm for diameter at breast height (Δdbh), 44.14-55.49 cm2 for basal area (Δg), and 1.91-4.85 m for tree height (Δh). In general, tree attributes were estimated more accurately for Scots pine trees, followed by Norway spruce and broadleaved trees. At the forest stand level, an RMSE of 0.60-1.13 cm was recorded for changes in basal area-weighted mean diameter (ΔDg), 0.81-2.26 m for changes in basal area-weighted mean height (ΔHg), 1.40-2.34 m2/ha for changes in mean basal area (ΔG), and 74-193 n/ha for changes in the number of trees per hectare (ΔTPH). The plot-level accuracy was higher in Scots pine-dominated sample plots than in Norway spruce-dominated and mixed-species sample plots. TLS-derived tree and forest structural attributes at time points T1 and T2 differed significantly from each other (p < 0.05). If there was an increase or decrease in dbh, g, h, height of the crown base, crown ratio, Dg, Hg, or G recorded in the field, a similar outcome was achieved by using TLS. Our results provided new information on the feasibility of TLS for the purposes of forest ecosystem growth monitoring.

Preprint ARTICLE | doi:10.20944/preprints202005.0375.v1

Importance, Determinants and Gender Dimensions of Forests for Communities Dawuro Zone, South-West Ethiopia a Case Study of Essera Woreda

Bekele Tona Amenu, Getahun Shanko Mamo

Subject: Biology And Life Sciences, Forestry Keywords: Firewood; Forest dependence; Gender; Household income; Livelihoods; Wealth status

Online: 23 May 2020 (10:56:38 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Working Paper ARTICLE

Evaluating the Likelihood of Tree Failure in Naples, Florida (United States) Following Hurricane Irma

Ryan W. Klein, Andrew K. Koeser, Brian Kane, Shawn M. Landry, Heather Shields, Stephen Lloyd, Gail Hansen

Subject: Biology And Life Sciences, Forestry Keywords: hurricane; tree risk assessment; urban forest strike team; species failure profile; likelihood of failure

Online: 24 April 2020 (04:37:51 CEST)

Show abstract| Share

Preprint ARTICLE | doi:10.20944/preprints202004.0388.v1

Carbon forestry compensation on estate level

Petri P. Kärenlampi

Subject: Biology And Life Sciences, Forestry Keywords: Capitalization; capital return rate deficiency; expected value; carbon storage; timber stock; carbon rent

Online: 22 April 2020 (05:33:21 CEST)

Show abstract| Share

Preprint ARTICLE | doi:10.20944/preprints202004.0254.v1

Evaluating the Likelihood of Tree Failure in Naples, Florida (United States) Following Hurricane Irma

Ryan W. Klein, Andrew K. Koeser, Brian Kane, Shawn M. Landry, Heather Shields, Stephen Lloyd, Gail Hansen

Subject: Biology And Life Sciences, Forestry Keywords: hurricane; tree risk assessment; urban forest strike team; species failure profile; likelihood of failure

Online: 16 April 2020 (05:30:24 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202003.0441.v1

Germination of Hymenaea courbaril: Storage Behavior, Origin, and Substrate

Leonardo Regnier

Subject: Biology And Life Sciences, Forestry Keywords: forestry seeds; fabaceae; seedling production; seed bank

Online: 31 March 2020 (04:21:07 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202003.0399.v1

Multisensorial Close-Range Sensing Generates Benefits for Characterization of Managed Scots Pine (Pinus sylvestris L.) Stands

Tuomas Yrttimaa, Ninni Saarinen, Ville Kankare, Niko Viljanen, Jari Hynynen, Saija Huuskonen, Markus Holopainen, Juha Hyyppä, Eija Honkavaara, Mikko Vastaranta

Subject: Biology And Life Sciences, Forestry Keywords: terrestrial laser scanning; unmanned aerial vehicle; image matching; remote sensing; forest inventory

Online: 27 March 2020 (02:30:55 CET)

Show abstract| Share

Preprint ARTICLE | doi:10.20944/preprints202003.0187.v1

Modeling Potential C, N, H Content in Aboveground Biomass with Spectral Data from Sentinel 2a

Neftalí Reyes-Zurita, Joaquín A. Rincón-Ramírez, Gerardo Rodríguez-Ortiz, José R. Enríquez-del Valle, Vicente A. Velasco-Velasco, Ernesto Castañeda-Hidalgo

Subject: Biology And Life Sciences, Forestry Keywords: Normalized difference vegetation index; San Juan Lachao; Satelital image

Online: 11 March 2020 (15:57:48 CET)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202002.0446.v1

Woody Species Structure and Regeneration Status in Kafta-Sheraro National Park Forest, Tigray Region, Ethiopia

fitsum temesgen, Bikila Warkineh

Subject: Biology And Life Sciences, Forestry Keywords: Kafta-sheraro national park; woody species structure; regeneration status

Online: 28 February 2020 (16:24:09 CET)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202002.0300.v1

Monitoring Forests in Space and Time Using Close-Range Sensing

Mikko Vastaranta, Ninni Saarinen, Tuomas Yrttimaa, Ville Kankare, Samuli Junttila

Subject: Biology And Life Sciences, Forestry Keywords: forest change; remote sensing; natural phenomena; growth; tree health; forest operations

Online: 21 February 2020 (02:53:34 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202002.0246.v1

Site Classification and Evaluation of Eucalyptus urophylla × Eucalyptus grandis Plantation in Southern Yunnan, China

Haifei Lu, Jianmin Xu, Guangyou Li, Wangshu Liu, Yuqiang Wu, Yundong Zhang, Jun Bai, Guolei Su, Cheng Jiang

Subject: Biology And Life Sciences, Forestry Keywords: E. urophylla × E. grandis; plantation; forest yield

Online: 17 February 2020 (15:21:39 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201911.0349.v1

Genetic Diversity of Bemisia tabaci (Gennadius) (Hemiptera:Aleyrodidae) Colonizing Sweet Potato and Cassava in South Sudan

Beatrice Clarence Misaka, Everlyne N. Wosula, Philip W. Marchelo-d'Ragga, Trine Hvoslef-Eide, James Peter Legg

Subject: Biology And Life Sciences, Forestry Keywords: Bemisia tabaci; genetic diversity; distribution; haplotype

Online: 28 November 2019 (03:24:39 CET)

Show abstract| Share

Preprint COMMUNICATION | doi:10.20944/preprints201911.0182.v1

Development of Populus alba L. and Populus tremula L. Species Specific Molecular Markers Based on the 5S rDNA Non-transcribed Spacer Polymorphism

Oleg S. Alexandrov, Gennady I. Karlov

Subject: Biology And Life Sciences, Forestry Keywords: poplars; molecular markers; non-transcribed spacers (ntss); 5s rdna; interspecies hybridization; species identification

Online: 15 November 2019 (16:50:27 CET)

Show abstract| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints201910.0145.v1

Assessing Legacy Effects of Wildfires on the Crown Structure of Fire-Tolerant Eucalypt Trees Using Airborne Lidar Data

Yogendra K. Karna, Trent D. Penman, Cristina Aponte, Lauren T. Bennett

Subject: Biology And Life Sciences, Forestry Keywords: clumping index; crown architecture; crown projection area; lidar-based crown metrics; discrete-return lidar; fire severity; leaf area density; post-fire effects

Online: 13 October 2019 (15:34:43 CEST)

Show abstract| Download PDF| Share

Fire-tolerant eucalypt forests of south eastern Australia are assumed to fully recover from even the most intense fires but surprisingly very few studies have quantitatively assessed that recovery. Accurate assessment of horizontal and vertical attributes of tree crowns after fire is essential to understand the fire’s legacy effects on tree growth and on forest structure. In this study, we quantitatively assessed individual tree crowns 8.5 years after a 2009 wildfire that burnt extensive areas of eucalypt forest in temperate Australia. We used airborne lidar data validated with field measurements to estimate multiple metrics that quantified the cover, density, and vertical distribution of individual-tree crowns in 51 plots of 0.05 ha in fire-tolerant eucalypt forest across four wildfire severity types (unburnt, low, moderate, high). Significant differences in the field-assessed mean height of fire scarring as a proportion of tree height, and in the proportions of trees with epicormic (stem) resprouts were consistent with the gradation in fire severity. Linear mixed-effects models indicated persistent effects of both moderate- and high-severity wildfire on tree crown architecture. Trees at high-severity sites had significantly less crown projection area and live crown width as a proportion of total crown width than those at unburnt and low-severity sites. Significant differences in lidar-based metrics (crown cover, evenness, leaf area density profiles) indicated that tree crowns at moderate- and high-severity sites were comparatively narrow and more evenly distributed down the tree stem. These conical-shaped crowns contrasted sharply with the rounded crowns of trees at unburnt and low-severity sites, and likely influenced both tree productivity and the accuracy of biomass allometric equations for nearly a decade after the fire. Our data provide a clear example of the utility of airborne lidar data for quantifying the impacts of disturbances at the scale of individual trees. Quantified effects of contrasting fire severities on the structure of resprouter tree crowns provide a strong basis for interpreting post-fire patterns in forest canopies and vegetation profiles in lidar and other remotely-sensed data at larger scales.

Preprint ARTICLE | doi:10.20944/preprints201909.0303.v1

Salinity Tolerance in Fraxinus Angustifolia Vahl. Seed Emergence in the Field and Germination Trials

Sabrina Raddi, Barbara Mariotti, Sofia Martini, Alberto Pierguidi

Subject: Biology And Life Sciences, Forestry Keywords: Mediterranean wetland; NaCl salinity; Fraxinus angustifolia; seed germination

Online: 27 September 2019 (03:11:12 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints201908.0130.v1

You Can’t See the Woods for the Trees: Invasive Acer negundo L. In Urban Riparian Forests Harms Biodiversity and Limits Recreation Activity

Daria Sikorska, Piotr Sikorski, Piotr Archiciński, Jarosław Chormański, Richard Hopkins

Subject: Biology And Life Sciences, Forestry Keywords: blue-green infrastracture; nature-based solutions; urban green spaces; invasive trees; trampling

Online: 11 August 2019 (11:24:47 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201908.0059.v1

The Effect of Recreation in a Snow-Covered Forest Environment on the Psychological Relaxation of Young Females

Ernest Bielinis, Adrian Łukowski, Aneta Omelan, Sergii Boiko, Norimasa Takayama

Subject: Biology And Life Sciences, Forestry Keywords: deciduous forest; female; forest bathing; forest therapy; Positive and Negative Affect Schedule; Profile of Mood States; Restorative Outcome Scale; restoration; Shinrin-Yoku; snow covered forest; Subjective Vitality Scale; winter

Online: 5 August 2019 (08:56:32 CEST)

Show abstract| Download PDF| Share

Forest recreation can be successfully conducted for the purpose of psychological relaxation, as has been proven in previous scientific studies. During the winter in many countries, when snow cover occurs frequently, forest recreation (walking, relaxation, photography, etc.) is common. Nevertheless, whether forest therapy conducted in a forest environment with a snow cover will also have a positive effect on psychological indicators remains unknown. Furthermore, male subjects frequently participate in forest therapy experiments, whereas females are rarely involved. Thus, in this study, the effectuality of forest recreation during winter and with snow cover was tested on 32 young females. For these reasons, the experiment involved 15-minute periods of relaxation in a forest environment or in an urban environment, in addition to a pre-test under indoor conditions. Four psychological questionnaires (POMS, PANAS, ROS, SVS) were administered to participants before and after interventions. Results showed that participants’ levels of negative mood, as measured by different aspects of the POMS questionnaire (tension-anxiety, anger-hostility, depression-dejection, confusion, fatigue), decreased after exposure to the forest environment. In contrast, both tension-anxiety and anger-hostility increased in the urban environment. The indicator of negative affect from the PANAS questionnaire also increased after exposure to the urban environment, whereas the indicator of positive affect based on PANAS was higher in the forest environment than in the urban environment. Restorativeness and subjective vitality exhibited higher values after exposure to the forest environment in comparison to those from the control and pre-test. The changes in these indicators demonstrates that forest recreation in the snow during winter can significantly increase psychological relaxation in young females, as well as showing that recreation can be successfully conducted under these winter conditions.

Preprint ARTICLE | doi:10.20944/preprints201908.0025.v1

Resource Base Assessment of Acacia Seyal in Eastern Amhara Region

Andualem Ayalew, Derbie Wudu, Gezahagn Getachew, Tegabu Redae, Hoaddis kasshun

Subject: Biology And Life Sciences, Forestry Keywords: resource potential; point center quarter methods; Acacia seyal structure; species composition; diversity

Online: 2 August 2019 (09:27:50 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201905.0222.v1

Cryptic Risks to Forest Biosecurity Associated with the Global Movement of Commercial Seed

Michelle Cleary, Funda Oskay, Hatice Tugba Doğmuş, Asko Lehtijärvi, Stephen Woodward, Anna Maria Vettraino

Subject: Biology And Life Sciences, Forestry Keywords: tree seed pathogens, alien invasive species, emerging forest disease, global trade, plant biosecurity, commercial seed, Pinus, Diplodia sapinea, Sydowia polyspora, Lasiodiplodia theobromae, mycobiome, FUNGuild

Online: 17 May 2019 (11:08:40 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Working Paper ARTICLE

The Effect of Tree Diversity on the Resistance and Recovery of Forest Stands in the French Alps May Depend on Species Differences in Hydraulic Features

Marion Jourdan, François Lebourgeois, Xavier Morin

Subject: Biology And Life Sciences, Forestry Keywords: diversity; ecosystem functioning; stand growth; resistance; recovery; climate change; forests; Alps

Online: 15 April 2019 (10:57:38 CEST)

Show abstract| Download PDF| Share

Working Paper ARTICLE

Changes in Lower Layers Biodiversity Caused by Polish Pony in Old Growth Scots Pine Stands

Sergii Boiko, Ernest Bielinis, Zbigniew Sierota, Anna Zawadzka, Maciej Nasiadko, Jakub Borkowski

Subject: Biology And Life Sciences, Forestry Keywords: Polish primitive horse, forest site type, herb layer, undergrowth layer, understory layer, biodiversity

Online: 21 March 2019 (10:04:14 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201902.0012.v1

Thinning Schedules for Spruce Stands

Petri P. Kärenlampi

Subject: Biology And Life Sciences, Forestry Keywords: Capital return; pulpwood-sawlog transition; diameter-limit cutting

Online: 1 February 2019 (10:30:55 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201901.0194.v1

Wealth Accumulation in Rotation Forestry – Failure of the Net Present Value Optimization?

Petri P. Kärenlampi

Subject: Biology And Life Sciences, Forestry Keywords: capital return; real estate; capitalization

Online: 21 January 2019 (07:28:01 CET)

Show abstract| Download PDF| Share

Biology and Life Sciences