Version 1
: Received: 23 May 2023 / Approved: 25 May 2023 / Online: 25 May 2023 (05:24:51 CEST)
How to cite:
Ramos, M.A.V.; Pérez-Alberti, A.; Nóbrega, G.N.; Otero, X.L. Spatiotemporal Variability in Soil Properties and Composition in Mangrove Forests in Baía de Todos os Santos (NE Brazil). Preprints2023, 2023051739. https://doi.org/10.20944/preprints202305.1739.v1
Ramos, M.A.V.; Pérez-Alberti, A.; Nóbrega, G.N.; Otero, X.L. Spatiotemporal Variability in Soil Properties and Composition in Mangrove Forests in Baía de Todos os Santos (NE Brazil). Preprints 2023, 2023051739. https://doi.org/10.20944/preprints202305.1739.v1
Ramos, M.A.V.; Pérez-Alberti, A.; Nóbrega, G.N.; Otero, X.L. Spatiotemporal Variability in Soil Properties and Composition in Mangrove Forests in Baía de Todos os Santos (NE Brazil). Preprints2023, 2023051739. https://doi.org/10.20944/preprints202305.1739.v1
APA Style
Ramos, M.A.V., Pérez-Alberti, A., Nóbrega, G.N., & Otero, X.L. (2023). Spatiotemporal Variability in Soil Properties and Composition in Mangrove Forests in Baía de Todos os Santos (NE Brazil). Preprints. https://doi.org/10.20944/preprints202305.1739.v1
Chicago/Turabian Style
Ramos, M.A.V., Gabriel Nuto Nóbrega and Xosé Luis Otero. 2023 "Spatiotemporal Variability in Soil Properties and Composition in Mangrove Forests in Baía de Todos os Santos (NE Brazil)" Preprints. https://doi.org/10.20944/preprints202305.1739.v1
Abstract
Baía de Todos os Santos is the second largest bay in Brazil and is home to important ecosystems, including estuarine systems and mangroves. However, studies on the seasonal variability of its soil properties and composition are still scarce. For this study, soil and leaf samples were seasonally collected from mangrove forests at four sites (Cacha Prego, Ponta Grossa, Ilha de Maré, and Pitinga), which are representative of different environmental conditions within the BTS. Soil physicochemical properties, soil composition and partition of Fe forms were determined, and analysis of minerals by Scanning Electron Microscope, was performed on soil samples. Isotopic ratios (δ13C, δ15N) were also determined on soil and leaf samples. Soils showed significant spatial and temporal changes affecting both their properties (pH, Eh) and their composition (TOC, pyrite and Fe oxyhydroxide contents). Clear spatial changes were observed in redox potential, significantly affecting the concentrations of the different geochemical forms of Fe, particularly the concentrations of crystalline oxyhydroxydes and pyrite in one of the studied sites. In three of the study sites, pyrite crystals showed clear evidence of degradation associated with sandy soils. Finally, δ13C and N/C ratios in soils seem to suggest a mixed origin of organic matter.
Keywords
Soil geochemistry pyrites; iron partitioning
Subject
Environmental and Earth Sciences, Soil Science
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.
