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Climate and soil effects on tree species diversity and aboveground carbon patterns in semi-arid tree savannas
Climatic and edaphic effects are increasingly being discussed in the context of biodiversity-ecosystem functioning. Here we use data from West African semi-arid tree savannas and contrasting climatic conditions (lower vs. higher mean annual precipitation-MAP and mean annual temperature-MAT) to (1) d...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Nature Publishing Group UK
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10352281/ https://www.ncbi.nlm.nih.gov/pubmed/37460693 http://dx.doi.org/10.1038/s41598-023-38225-3 |
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author | Mensah, Sylvanus Noulèkoun, Florent Dimobe, Kangbéni Seifert, Thomas Glèlè Kakaï, Romain |
author_facet | Mensah, Sylvanus Noulèkoun, Florent Dimobe, Kangbéni Seifert, Thomas Glèlè Kakaï, Romain |
author_sort | Mensah, Sylvanus |
collection | PubMed |
description | Climatic and edaphic effects are increasingly being discussed in the context of biodiversity-ecosystem functioning. Here we use data from West African semi-arid tree savannas and contrasting climatic conditions (lower vs. higher mean annual precipitation-MAP and mean annual temperature-MAT) to (1) determine how climate modulates the effects of species richness on aboveground carbon (AGC); (2) explore how species richness and AGC relate with soil variables in these contrasting climatic conditions; and (3) assess how climate and soil influence directly, and/or indirectly AGC through species richness and stand structural attributes such as tree density and size variation. We find that greater species richness is generally associated with higher AGC, but more strongly in areas with higher MAP, which also have greater stem density. There is a climate-related influence of soils on AGC, which decreases from lower to higher MAP conditions. Variance partitioning analyses and structural equation modelling show that, across all sites, MAP, relative to soils, has smaller effect on AGC, mediated by stand structural attributes whereas soil texture and fertility explain 14% of variations in AGC and influence AGC directly and indirectly via species richness and stand structural attributes. Our results highlight coordinated effects of climate and soils on AGC, which operated primarily via the mediation role of species diversity and stand structures. |
format | Online Article Text |
id | pubmed-10352281 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-103522812023-07-19 Climate and soil effects on tree species diversity and aboveground carbon patterns in semi-arid tree savannas Mensah, Sylvanus Noulèkoun, Florent Dimobe, Kangbéni Seifert, Thomas Glèlè Kakaï, Romain Sci Rep Article Climatic and edaphic effects are increasingly being discussed in the context of biodiversity-ecosystem functioning. Here we use data from West African semi-arid tree savannas and contrasting climatic conditions (lower vs. higher mean annual precipitation-MAP and mean annual temperature-MAT) to (1) determine how climate modulates the effects of species richness on aboveground carbon (AGC); (2) explore how species richness and AGC relate with soil variables in these contrasting climatic conditions; and (3) assess how climate and soil influence directly, and/or indirectly AGC through species richness and stand structural attributes such as tree density and size variation. We find that greater species richness is generally associated with higher AGC, but more strongly in areas with higher MAP, which also have greater stem density. There is a climate-related influence of soils on AGC, which decreases from lower to higher MAP conditions. Variance partitioning analyses and structural equation modelling show that, across all sites, MAP, relative to soils, has smaller effect on AGC, mediated by stand structural attributes whereas soil texture and fertility explain 14% of variations in AGC and influence AGC directly and indirectly via species richness and stand structural attributes. Our results highlight coordinated effects of climate and soils on AGC, which operated primarily via the mediation role of species diversity and stand structures. Nature Publishing Group UK 2023-07-17 /pmc/articles/PMC10352281/ /pubmed/37460693 http://dx.doi.org/10.1038/s41598-023-38225-3 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Mensah, Sylvanus Noulèkoun, Florent Dimobe, Kangbéni Seifert, Thomas Glèlè Kakaï, Romain Climate and soil effects on tree species diversity and aboveground carbon patterns in semi-arid tree savannas |
title | Climate and soil effects on tree species diversity and aboveground carbon patterns in semi-arid tree savannas |
title_full | Climate and soil effects on tree species diversity and aboveground carbon patterns in semi-arid tree savannas |
title_fullStr | Climate and soil effects on tree species diversity and aboveground carbon patterns in semi-arid tree savannas |
title_full_unstemmed | Climate and soil effects on tree species diversity and aboveground carbon patterns in semi-arid tree savannas |
title_short | Climate and soil effects on tree species diversity and aboveground carbon patterns in semi-arid tree savannas |
title_sort | climate and soil effects on tree species diversity and aboveground carbon patterns in semi-arid tree savannas |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10352281/ https://www.ncbi.nlm.nih.gov/pubmed/37460693 http://dx.doi.org/10.1038/s41598-023-38225-3 |
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