Karim, M.R.; Rinne-Garmston, K.T.; Sarkkola, S. Biomass Allocation, Foliar And Root Production in Boreal Drained Downy Birch (Betula pubescens Ehrh.) Dominated Peatland Sites. Preprints2023, 2023071384. https://doi.org/10.20944/preprints202307.1384.v1
APA Style
Karim, M.R., Rinne-Garmston, K.T., & Sarkkola, S. (2023). Biomass Allocation, Foliar And Root Production in Boreal Drained Downy Birch (Betula pubescens Ehrh.) Dominated Peatland Sites. Preprints. https://doi.org/10.20944/preprints202307.1384.v1
Chicago/Turabian Style
Karim, M.R., Katja T. Rinne-Garmston and Sakari Sarkkola. 2023 "Biomass Allocation, Foliar And Root Production in Boreal Drained Downy Birch (Betula pubescens Ehrh.) Dominated Peatland Sites" Preprints. https://doi.org/10.20944/preprints202307.1384.v1
Abstract
Stand biomass in boreal forests has attained recognition for its crucial role in carbon cycling. In this study, we examined the effect of stand age on above- and belowground biomass allocation in downy birch (Betula pubescens Ehrh.) in three drained peatland sites in Central Finland. We used allometric equations to estimate individual-tree above-ground biomass and its various components, including stem wood, stem bark, living branches, leaves, and dead branches. The above-ground biomass ranged from 10.5 t ha-1 to 276.0 t ha-1 and foliage biomass from 0.009 t ha-1 to 0.6 t ha-1. We found that stand age had a strong correlation with above-ground biomass, but foliage biomass appeared to peak at the middle-aged (50 years) stand compared to the young (10 years) or mature (80 years) stands. We observed coarse root biomass production of 45, 250, and 110 g m-2 in the 0–50 cm peat layer for young, middle-aged, and mature stands, respectively. Most coarse root biomass occurred in the top 20-cm layer (77%). These findings improve our understanding of how biomass allocation patterns – specifically those in foliar biomass– change over time, and the impact on litter inputs into the soil.
Keywords
downy birch; biomass allocation; above-ground biomass; stand age; tree diameter; forest peatland.
Subject
Biology and Life Sciences, Forestry
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
