中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地理科学与资源研究所
  3. 中国科学院地理科学与资源研究所
Nonlinear response of ecosystem respiration to multiple levels of temperature increases

文献类型：期刊论文

作者Chen, Ning1,2; Zhu, Juntao1; Zhang, Yangjian1,3,4; Liu, Yaojie1; Li, Junxiang5; Zu, Jiaxing1,2; Huang, Ke1
刊名ECOLOGY AND EVOLUTION
出版日期2019-02-01
卷号9期号:3页码:925-937
关键词ecosystem respiration excitatory effect experimental warming nonlinear response Tibetan Plateau
ISSN号2045-7758
DOI10.1002/ece3.4658
通讯作者Zhu, Juntao(zhujt@igsnrr.ac.cn) ; Liu, Yaojie(liu.yaojie@aliyun.com)
英文摘要Global warming exerts profound impacts on terrestrial carbon cycles and feedback to climates. Ecosystem respiration (ER) is one of the main components of biosphere CO2 fluxes. However, knowledge regarding how ER responds to warming is still lacking. In this study, a manipulative experiment with five simulated temperature increases (+0? [Control], +2.1? [warming 1, W1], +2.7? [warming 2, W2], +3.2? [warming 3, W3], +3.9? [warming 4, W4]) was conducted to investigate ER responses to warming in an alpine meadow on the Tibetan Plateau. The results showed that ER was suppressed by warming both in dry and wet years. The responses of ER to warming all followed a nonlinear pattern. The nonlinear processes can be divided into three stages, the quick-response stage (W1), stable stage (W1-W3), and transition stage (W4). Compared with the nonlinear model, the linear model maximally overestimated the response ratios of ER to warming 2.2% and 3.2% in 2015 and 2016, respectively, and maximally underestimated the ratio 7.0% and 2.7%. The annual differences in ER responding to warming were mainly attributed to the distinct seasonal distribution of precipitation. Specially, we found that the abrupt shift response of ER to warming under W4 treatment in 2015, which might be regulated by the excitatory effect of precipitation after long-term drought in the mid-growing season. This study highlights the importance of the nonlinearity of warming effects on ER, which should be taken into the global-C-cycling models for better predicting future carbon-climate feedbacks.
WOS关键词CARBON-CYCLE FEEDBACKS ; SOIL ORGANIC-CARBON ; ALPINE MEADOW ; CO2 EXCHANGE ; INTERANNUAL VARIABILITY ; WATER AVAILABILITY ; TALLGRASS PRAIRIE ; PLANT BIOMASS ; ELEVATED CO2 ; PRECIPITATION
资助项目National Science Foundation of the USA[DEB-1257858] ; National Science Foundation of the USA[DEB-1342754] ; National Key Research and Development Plan of China[2016YFC0501802] ; National Key Research and Development Plan of China[2017YFA0604802] ; Key Laboratory of Ecosystem Network Observation and Modeling[LENOM2016Q0002] ; National Natural Science Foundation of China[31361123001] ; National Natural Science Foundation of China[41571195] ; Chinese Academy of Sciences ; State Grid Corporation of China[SGxzzzlwzhbGCJS1700095]
WOS研究方向Environmental Sciences & Ecology ; Evolutionary Biology
语种英语
WOS记录号WOS:000461112200002
出版者WILEY
资助机构National Science Foundation of the USA ; National Key Research and Development Plan of China ; Key Laboratory of Ecosystem Network Observation and Modeling ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; State Grid Corporation of China
源URL[http://ir.igsnrr.ac.cn/handle/311030/49283]  
专题中国科学院地理科学与资源研究所
通讯作者Zhu, Juntao; Liu, Yaojie
作者单位1.Chinese Acad Sci, Lhasa Plateau Ecosyst Res Stn, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China
4.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China
5.Peking Univ, Shenzhen Grad Sch, Shenzhen, Peoples R China
推荐引用方式
GB/T 7714		 Chen, Ning,Zhu, Juntao,Zhang, Yangjian,et al. Nonlinear response of ecosystem respiration to multiple levels of temperature increases[J]. ECOLOGY AND EVOLUTION,2019,9(3):925-937.
APA Chen, Ning.,Zhu, Juntao.,Zhang, Yangjian.,Liu, Yaojie.,Li, Junxiang.,...&Huang, Ke.(2019).Nonlinear response of ecosystem respiration to multiple levels of temperature increases.ECOLOGY AND EVOLUTION,9(3),925-937.
MLA Chen, Ning,et al."Nonlinear response of ecosystem respiration to multiple levels of temperature increases".ECOLOGY AND EVOLUTION 9.3(2019):925-937.

入库方式： OAI收割

来源：地理科学与资源研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。