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Carbon dioxide emission from temperate semiarid steppe during the non-growing season

文献类型：期刊论文

作者Chen, Weiwei; Wolf, Benjamin; Zheng, Xunhua; Yao, Zhisheng; Butterbach-Bahl, Klaus; Brueggemann, Nicolas2; Han, Shenghui; Liu, Chunyan; Han, Xingguo3
刊名ATMOSPHERIC ENVIRONMENT
出版日期2013
卷号64页码:141-149
关键词Steppes CO2 Soil respiration Net carbon exchange Grazing Non-growing season Inner Mongolia
ISSN号1352-2310
DOI10.1016/j.atmosenv.2012.10.004
文献子类Article
英文摘要Clarifying whether grazed semiarid steppe is a sink or source of carbon dioxide (CO2) requires accurate quantification of the annual net CO2 exchange between the ecosystem and the atmosphere. Previous studies have primarily focused on the growing season and on single grazing pattern. Carbon dioxide emission from the temperate semiarid steppe during the non-growing season and its responses to various grazing practices still remains uncertain. Using the chamber-based technique, we simultaneously determined the CO2 fluxes during the non-growing season at twelve grazed semiarid temperate steppe plots in Inner Mongolia and investigated the responses of CO2 emission to different grazing practices. The CO2 fluxes during the non-growing season were demonstrated to be significantly regulated by soil temperature and moisture contents. The cumulative CO2 emission during the non-growing season (October-April) amounted to 353 +/- 26 kg C ha(-1) on average (ranges: 180-484 kg C ha(-1)), significantly demonstrating decrease with increasing grazing intensity and increase with mean snow cover depth or mean surface soil moisture content. The empirical equations describing these significant relationships provide simple approaches to estimate the regional amounts of CO2 emission from temperate semiarid steppe during the non-growing season. (C) 2012 Elsevier Ltd. All rights reserved.
学科主题Environmental Sciences ; Meteorology & Atmospheric Sciences
出版地OXFORD
电子版国际标准刊号1873-2844
WOS关键词INNER-MONGOLIA ; METHANE UPTAKE ; SOIL RESPIRATION ; CO2 EFFLUXES ; GRASSLAND ; FLUXES ; ECOSYSTEM ; N2O ; CH4 ; PRODUCTIVITY
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
语种英语
WOS记录号WOS:000313539300017
出版者PERGAMON-ELSEVIER SCIENCE LTD
资助机构Chinese Academy of Sciences(Chinese Academy of Sciences) ; Chinese Ministry of Science and Technology(Ministry of Science and Technology, China) ; German Research Foundation(German Research Foundation (DFG)) ; National Natural Science Foundation of China(National Natural Science Foundation of China (NSFC)) ; Helmholtz-CSC joint laboratory project ENTRANCE
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/28142]  
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 IB, Beijing 100093, Peoples R China
2.Inst Meteorol & Climate Res Atmospher Environm Re, Karlsruhe Inst Technol, D-82467 Garmisch Partenkirchen, Germany
3.Forschungszentrum Julich, Inst Bio & Geosci, Agrosphere IBG 3, D-52425 Julich, Germany
4.Chinese Acad Sci, State Key Lab Atmospher Boundary Layer Phys & Atm, Inst Atmospher Phys, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Chen, Weiwei,Wolf, Benjamin,Zheng, Xunhua,et al. Carbon dioxide emission from temperate semiarid steppe during the non-growing season[J]. ATMOSPHERIC ENVIRONMENT,2013,64:141-149.
APA Chen, Weiwei.,Wolf, Benjamin.,Zheng, Xunhua.,Yao, Zhisheng.,Butterbach-Bahl, Klaus.,...&Han, Xingguo.(2013).Carbon dioxide emission from temperate semiarid steppe during the non-growing season.ATMOSPHERIC ENVIRONMENT,64,141-149.
MLA Chen, Weiwei,et al."Carbon dioxide emission from temperate semiarid steppe during the non-growing season".ATMOSPHERIC ENVIRONMENT 64(2013):141-149.

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来源：植物研究所

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