Alpine soil carbon is vulnerable to rapid microbial decomposition under climate cooling

NWIPB OpenIR

	Alpine soil carbon is vulnerable to rapid microbial decomposition under climate cooling
	Wu, Linwei 1,2,3; Yang, Yunfeng 1; Wang, Shiping4,5 ; Yue, Haowei 1; Lin, Qiaoyan 6; Hu, Yigang 6,7; He, Zhili 2,3; Van Nostrand, Joy D.2,3; Hale, Lauren 2,3; Li, Xiangzhen 8; Gilbert, Jack A.9,10; Zhou, Jizhong 1,2,3,11
	2017-09-01
发表期刊	ISME JOURNAL
摘要	As climate cooling is increasingly regarded as important natural variability of long-term global warming trends, there is a resurging interest in understanding its impact on biodiversity and ecosystem functioning. Here, we report a soil transplant experiment from lower to higher elevations in a Tibetan alpine grassland to simulate the impact of cooling on ecosystem community structure and function. Three years of cooling resulted in reduced plant productivity and microbial functional potential (for example, carbon respiration and nutrient cycling). Microbial genetic markers associated with chemically recalcitrant carbon decomposition remained unchanged despite a decrease in genes associated with chemically labile carbon decomposition. As a consequence, cooling-associated changes correlated with a decrease in soil organic carbon (SOC). Extrapolation of these results suggests that for every 1 degrees C decrease in annual average air temperature, 0.1 Pg (0.3%) of SOC would be lost from the Tibetan plateau. These results demonstrate that microbial feedbacks to cooling have the potential to differentially impact chemically labile and recalcitrant carbon turnover, which could lead to strong, adverse consequences on soil C storage. Our findings are alarming, considering the frequency of short-term cooling and its scale to disrupt ecosystems and biogeochemical cycling.
出版者	NATURE PUBLISHING GROUP
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/28267
专题	中国科学院西北高原生物研究所
通讯作者	Yang, Yunfeng
作者单位	1.Tsinghua Univ, Sch Environm, State Key Joint Lab Environm Simulat & Pollut Con, 1 Tsinghua Garden Rd, Beijing, Peoples R China 2.Univ Oklahoma, Dept Microbiol & Plant Biol, Inst Environm Genom, Norman, OK 73019 USA 3.Univ Oklahoma, Sch Civil Engn & Environm Sci, Norman, OK 73019 USA 4.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol & Biodivers, Beijing, Peoples R China 5.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China 6.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adapt & Evolut Plateau Biota, Xining, Qinghai, Peoples R China 7.Chinese Acad Sci, Cold & Arid Reg & Environm & Engn Res Inst, Shapotou Desert Expt & Res Stn, Lanzhou, Gansu, Peoples R China 8.Chinese Acad Sci, Chengdu Inst Biol, Chengdu, Sichuan, Peoples R China 9.Argonne Natl Lab, BioSci Div, Microbiome Ctr, 9700 S Cass Ave, Argonne, IL 60439 USA 10.Univ Chicago, Dept Surg, 5841 S Maryland Ave, Chicago, IL 60637 USA 11.Lawrence Berkeley Natl Lab, Earth & Environm Sci, Berkeley, CA USA
推荐引用方式 GB/T 7714	Wu, Linwei,Yang, Yunfeng,Wang, Shiping,et al. Alpine soil carbon is vulnerable to rapid microbial decomposition under climate cooling[J]. ISME JOURNAL,2017.
APA	Wu, Linwei.,Yang, Yunfeng.,Wang, Shiping.,Yue, Haowei.,Lin, Qiaoyan.,...&Zhou, Jizhong.(2017).Alpine soil carbon is vulnerable to rapid microbial decomposition under climate cooling.ISME JOURNAL.
MLA	Wu, Linwei,et al."Alpine soil carbon is vulnerable to rapid microbial decomposition under climate cooling".ISME JOURNAL (2017).