Arbuscular mycorrhizal fungi regulate soil respiration and its response to precipitation change in a semiarid steppe

doi:10.1038/srep19990

	Arbuscular mycorrhizal fungi regulate soil respiration and its response to precipitation change in a semiarid steppe
	Zhang, Bingwei 1; Li, Shan 1; Chen, Shiping; Ren, Tingting ; Yang, Zhiqiang 1; Zhao, Hanlin ; Liang, Yu ; Han, Xingguo2
	2016
发表期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
卷号	6
摘要	Arbuscular mycorrhizal fungi (AMF) are critical links in plant-soil continuum and play a critical role in soil carbon cycles. Soil respiration, one of the largest carbon fluxes in global carbon cycle, is sensitive to precipitation change in semiarid ecosystems. In this study, a field experiment with fungicide application and water addition was conducted during 2010-2013 in a semiarid steppe in Inner Mongolia, China, and soil respiration was continuously measured to investigate the influences of AMF on soil respiration under different precipitation regimes. Results showed that soil respiration was promoted by water addition treatment especially during drought seasons, which induced a nonlinear response of soil respiration to precipitation change. Fungicide application suppressed AMF root colonization without impacts on soil microbes. AMF suppression treatment accelerated soil respiration with 2.7, 28.5 and 37.6 g Cm-2 across three seasons, which were mainly caused by the enhanced heterotrophic component. A steeper response of soil respiration rate to precipitation was found under fungicide application treatments, suggesting a greater dampening effect of AMF on soil carbon release as water availability increased. Our study highlighted the importance of AMF on soil carbon stabilization and sequestration in semiarid steppe ecosystems especially during wet seasons.
学科领域	Multidisciplinary Sciences
DOI	10.1038/srep19990
收录类别	SCI
语种	英语
WOS关键词	CLIMATE-CHANGE ; INTERANNUAL VARIABILITY ; CARBON SEQUESTRATION ; ELEVATED CO2 ; NITROGEN ; TEMPERATURE ; DIVERSITY ; EFFLUX ; AGGREGATION ; COMMUNITIES
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000368777500003
出版者	NATURE PUBLISHING GROUP
文献子类	Article
出版地	LONDON
资助机构	Strategic Priority Research Program-Climate Change: Carbon Budget and Relevant Issues of Chinese Academy of Sciences [XDA05050402] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31430016, 31170453] ; Selected Young Scientist Program - State Key Laboratory of Vegetation and Environment Change ; China Scholarship CouncilChina Scholarship Council
作者邮箱	spchen@ibcas.ac.cn ; coolrain@ibcas.ac.cn
作品OA属性	gold, Green Published
引用统计	被引频次：43[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/25209
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Appl Ecol, State Key Lab Forest & Soil Ecol, Shenyang 110164, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Bingwei,Li, Shan,Chen, Shiping,et al. Arbuscular mycorrhizal fungi regulate soil respiration and its response to precipitation change in a semiarid steppe[J]. SCIENTIFIC REPORTS,2016,6.
APA	Zhang, Bingwei.,Li, Shan.,Chen, Shiping.,Ren, Tingting.,Yang, Zhiqiang.,...&Han, Xingguo.(2016).Arbuscular mycorrhizal fungi regulate soil respiration and its response to precipitation change in a semiarid steppe.SCIENTIFIC REPORTS,6.
MLA	Zhang, Bingwei,et al."Arbuscular mycorrhizal fungi regulate soil respiration and its response to precipitation change in a semiarid steppe".SCIENTIFIC REPORTS 6(2016).

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