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Seasonal Influence of Biodiversity on Soil Respiration in a Temperate Forest
Soil respiration in forests contributes to significant carbon dioxide emissions from terrestrial ecosystems but it varies both spatially and seasonally. Both abiotic and biotic factors influence soil respiration but their relative contribution to spatial and seasonal variability remains poorly under...
Autores principales: | , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9738006/ https://www.ncbi.nlm.nih.gov/pubmed/36501430 http://dx.doi.org/10.3390/plants11233391 |
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author | Zhang, Mengxu Sayer, Emma J. Zhang, Weidong Ye, Ji Yuan, Zuoqiang Lin, Fei Hao, Zhanqing Fang, Shuai Mao, Zikun Ren, Jing Wang, Xugao |
author_facet | Zhang, Mengxu Sayer, Emma J. Zhang, Weidong Ye, Ji Yuan, Zuoqiang Lin, Fei Hao, Zhanqing Fang, Shuai Mao, Zikun Ren, Jing Wang, Xugao |
author_sort | Zhang, Mengxu |
collection | PubMed |
description | Soil respiration in forests contributes to significant carbon dioxide emissions from terrestrial ecosystems but it varies both spatially and seasonally. Both abiotic and biotic factors influence soil respiration but their relative contribution to spatial and seasonal variability remains poorly understood, which leads to uncertainty in models of global C cycling and predictions of future climate change. Here, we hypothesize that tree diversity, soil diversity, and soil properties contribute to local-scale variability of soil respiration but their relative importance changes in different seasons. To test our hypothesis, we conducted seasonal soil respiration measurements along a local-scale environmental gradient in a temperate forest in Northeast China, analyzed spatial variability of soil respiration and tested the relationships between soil respiration and a variety of abiotic and biotic factors including topography, soil chemical properties, and plant and soil diversity. We found that soil respiration varied substantially across the study site, with spatial coefficients of variation (CV) of 29.1%, 27.3% and 30.8% in spring, summer, and autumn, respectively. Soil respiration was consistently lower at high soil water content, but the influence of other factors was seasonal. In spring, soil respiration increased with tree diversity and biomass but decreased with soil fungal diversity. In summer, soil respiration increased with soil temperature, whereas in autumn, soil respiration increased with tree diversity but decreased with increasing soil nutrient content. However, soil nutrient content indirectly enhanced soil respiration via its effect on tree diversity across seasons, and forest stand structure indirectly enhanced soil respiration via tree diversity in spring. Our results highlight that substantial differences in soil respiration at local scales was jointly explained by soil properties (soil water content and soil nutrients), tree diversity, and soil fungal diversity but the relative importance of these drivers varied seasonally in our temperate forest. |
format | Online Article Text |
id | pubmed-9738006 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-97380062022-12-11 Seasonal Influence of Biodiversity on Soil Respiration in a Temperate Forest Zhang, Mengxu Sayer, Emma J. Zhang, Weidong Ye, Ji Yuan, Zuoqiang Lin, Fei Hao, Zhanqing Fang, Shuai Mao, Zikun Ren, Jing Wang, Xugao Plants (Basel) Article Soil respiration in forests contributes to significant carbon dioxide emissions from terrestrial ecosystems but it varies both spatially and seasonally. Both abiotic and biotic factors influence soil respiration but their relative contribution to spatial and seasonal variability remains poorly understood, which leads to uncertainty in models of global C cycling and predictions of future climate change. Here, we hypothesize that tree diversity, soil diversity, and soil properties contribute to local-scale variability of soil respiration but their relative importance changes in different seasons. To test our hypothesis, we conducted seasonal soil respiration measurements along a local-scale environmental gradient in a temperate forest in Northeast China, analyzed spatial variability of soil respiration and tested the relationships between soil respiration and a variety of abiotic and biotic factors including topography, soil chemical properties, and plant and soil diversity. We found that soil respiration varied substantially across the study site, with spatial coefficients of variation (CV) of 29.1%, 27.3% and 30.8% in spring, summer, and autumn, respectively. Soil respiration was consistently lower at high soil water content, but the influence of other factors was seasonal. In spring, soil respiration increased with tree diversity and biomass but decreased with soil fungal diversity. In summer, soil respiration increased with soil temperature, whereas in autumn, soil respiration increased with tree diversity but decreased with increasing soil nutrient content. However, soil nutrient content indirectly enhanced soil respiration via its effect on tree diversity across seasons, and forest stand structure indirectly enhanced soil respiration via tree diversity in spring. Our results highlight that substantial differences in soil respiration at local scales was jointly explained by soil properties (soil water content and soil nutrients), tree diversity, and soil fungal diversity but the relative importance of these drivers varied seasonally in our temperate forest. MDPI 2022-12-05 /pmc/articles/PMC9738006/ /pubmed/36501430 http://dx.doi.org/10.3390/plants11233391 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Zhang, Mengxu Sayer, Emma J. Zhang, Weidong Ye, Ji Yuan, Zuoqiang Lin, Fei Hao, Zhanqing Fang, Shuai Mao, Zikun Ren, Jing Wang, Xugao Seasonal Influence of Biodiversity on Soil Respiration in a Temperate Forest |
title | Seasonal Influence of Biodiversity on Soil Respiration in a Temperate Forest |
title_full | Seasonal Influence of Biodiversity on Soil Respiration in a Temperate Forest |
title_fullStr | Seasonal Influence of Biodiversity on Soil Respiration in a Temperate Forest |
title_full_unstemmed | Seasonal Influence of Biodiversity on Soil Respiration in a Temperate Forest |
title_short | Seasonal Influence of Biodiversity on Soil Respiration in a Temperate Forest |
title_sort | seasonal influence of biodiversity on soil respiration in a temperate forest |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9738006/ https://www.ncbi.nlm.nih.gov/pubmed/36501430 http://dx.doi.org/10.3390/plants11233391 |
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