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

文献类型：期刊论文

作者Zhang, Bingwei3; Li, Shan3; Chen, Shiping; Ren, Tingting; Yang, Zhiqiang3; Zhao, Hanlin; Liang, Yu; Han, Xingguo2
刊名SCIENTIFIC REPORTS
出版日期2016
卷号6
ISSN号2045-2322
DOI10.1038/srep19990
文献子类Article
英文摘要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.
学科主题Multidisciplinary Sciences
出版地LONDON
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)
语种英语
WOS记录号WOS:000368777500003
出版者NATURE PUBLISHING GROUP
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
源URL[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 Appl Ecol, State Key Lab Forest & Soil Ecol, Shenyang 110164, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, 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).

入库方式： OAI收割

来源：植物研究所

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