Empirical evidence for microbial regulation of soil respiration in alpine forests

A growing body of literature emphasizes important roles of microbial community in driving a variety of soil processes including soil respiration (Rs). However, empirical evidence for microbial regulation of Rs is still lacking in field observations. Here, we used an in situ approach to explore micro...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Long-Fei Chen, Zhi-Bin He, Wen-Zhi Zhao, Jun-Qia Kong, Yuan Gao
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Soil C emissions Microbial indicators Microbial community structure and function Elevational gradients Alpine forests of northwestern China Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/56c008f5cf6640d68da34bbce8c211cf
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:56c008f5cf6640d68da34bbce8c211cf
record_format	dspace
spelling	oai:doaj.org-article:56c008f5cf6640d68da34bbce8c211cf2021-12-01T04:51:51ZEmpirical evidence for microbial regulation of soil respiration in alpine forests1470-160X10.1016/j.ecolind.2021.107710https://doaj.org/article/56c008f5cf6640d68da34bbce8c211cf2021-07-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X21003757https://doaj.org/toc/1470-160XA growing body of literature emphasizes important roles of microbial community in driving a variety of soil processes including soil respiration (Rs). However, empirical evidence for microbial regulation of Rs is still lacking in field observations. Here, we used an in situ approach to explore microbial mechanisms for the variability in Rs across elevational gradients in an alpine forest of northwestern China. Our results revealed significant differences in abundance, diversity, and composition of both bacterial and fungal community, and the variability in microbial communities was mainly explained by climatic (mean annual precipitation) and soil (C:N ratios, available phosphorus, and nitrate nitrogen) variables. Elevation also had a significant effect on Rs, and the inclusion of microbial community composition rather than microbial abundance or diversity greatly improved the prediction of Rs dynamics along elevational gradients. Other soil properties such as C:N ratios and pH were also significantly correlated to Rs, however, they were not able to account for the variability in Rs explained by microbial community composition. Our study further identified Alphaproteobacteria and Acidobacteria as the major microbial taxa driving changes in Rs along elevational gradients, with important implications for the use of these taxa to predict soil C feedbacks under climate change scenarios in alpine forest ecosystems. Overall, our findings provided important empirical evidence for microbial regulation of Rs in field observations.Long-Fei ChenZhi-Bin HeWen-Zhi ZhaoJun-Qia KongYuan GaoElsevierarticleSoil C emissionsMicrobial indicatorsMicrobial community structure and functionElevational gradientsAlpine forests of northwestern ChinaEcologyQH540-549.5ENEcological Indicators, Vol 126, Iss , Pp 107710- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Soil C emissions Microbial indicators Microbial community structure and function Elevational gradients Alpine forests of northwestern China Ecology QH540-549.5
spellingShingle	Soil C emissions Microbial indicators Microbial community structure and function Elevational gradients Alpine forests of northwestern China Ecology QH540-549.5 Long-Fei Chen Zhi-Bin He Wen-Zhi Zhao Jun-Qia Kong Yuan Gao Empirical evidence for microbial regulation of soil respiration in alpine forests
description	A growing body of literature emphasizes important roles of microbial community in driving a variety of soil processes including soil respiration (Rs). However, empirical evidence for microbial regulation of Rs is still lacking in field observations. Here, we used an in situ approach to explore microbial mechanisms for the variability in Rs across elevational gradients in an alpine forest of northwestern China. Our results revealed significant differences in abundance, diversity, and composition of both bacterial and fungal community, and the variability in microbial communities was mainly explained by climatic (mean annual precipitation) and soil (C:N ratios, available phosphorus, and nitrate nitrogen) variables. Elevation also had a significant effect on Rs, and the inclusion of microbial community composition rather than microbial abundance or diversity greatly improved the prediction of Rs dynamics along elevational gradients. Other soil properties such as C:N ratios and pH were also significantly correlated to Rs, however, they were not able to account for the variability in Rs explained by microbial community composition. Our study further identified Alphaproteobacteria and Acidobacteria as the major microbial taxa driving changes in Rs along elevational gradients, with important implications for the use of these taxa to predict soil C feedbacks under climate change scenarios in alpine forest ecosystems. Overall, our findings provided important empirical evidence for microbial regulation of Rs in field observations.
format	article
author	Long-Fei Chen Zhi-Bin He Wen-Zhi Zhao Jun-Qia Kong Yuan Gao
author_facet	Long-Fei Chen Zhi-Bin He Wen-Zhi Zhao Jun-Qia Kong Yuan Gao
author_sort	Long-Fei Chen
title	Empirical evidence for microbial regulation of soil respiration in alpine forests
title_short	Empirical evidence for microbial regulation of soil respiration in alpine forests
title_full	Empirical evidence for microbial regulation of soil respiration in alpine forests
title_fullStr	Empirical evidence for microbial regulation of soil respiration in alpine forests
title_full_unstemmed	Empirical evidence for microbial regulation of soil respiration in alpine forests
title_sort	empirical evidence for microbial regulation of soil respiration in alpine forests
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/56c008f5cf6640d68da34bbce8c211cf
work_keys_str_mv	AT longfeichen empiricalevidenceformicrobialregulationofsoilrespirationinalpineforests AT zhibinhe empiricalevidenceformicrobialregulationofsoilrespirationinalpineforests AT wenzhizhao empiricalevidenceformicrobialregulationofsoilrespirationinalpineforests AT junqiakong empiricalevidenceformicrobialregulationofsoilrespirationinalpineforests AT yuangao empiricalevidenceformicrobialregulationofsoilrespirationinalpineforests
_version_	1718405723757477888

Empirical evidence for microbial regulation of soil respiration in alpine forests

Ejemplares similares