干旱区生态环境知识资源中心(Arid): Grazing exclusion reduced soil respiration but increased its temperature sensitivity in a Meadow Grassland on the Tibetan Plateau

Arid

DOI	10.1002/ece3.1867
	Grazing exclusion reduced soil respiration but increased its temperature sensitivity in a Meadow Grassland on the Tibetan Plateau
	Chen, Ji 1,2,3; Zhou, Xuhui 4; Wang, Junfeng 5,6; Hruska, Tracy 7; Shi, Weiyu 1,2; Cao, Junji 1,2,8; Zhang, Baocheng 1,2; Xu, Gexi 9; Chen, Yizhao 10; Luo, Yiqi 11,12
通讯作者	Cao, Junji
来源期刊	ECOLOGY AND EVOLUTION
ISSN	2045-7758
出版年	2016
卷号	6 期号:3 页码:675-687
英文摘要	Understanding anthropogenic influences on soil respiration (R-s) is critical for accurate predictions of soil carbon fluxes, but it is not known how R-s responds to grazing exclusion (GE). Here, we conducted a manipulative experiment in a meadow grassland on the Tibetan Plateau to investigate the effects of GE on R-s. The exclusion of livestock significantly increased soil moisture and above-ground biomass, but it decreased soil temperature, microbial biomass carbon (MBC), and R-s. Regression analysis indicated that the effects of GE on R-s were mainly due to changes in soil temperature, soil moisture, and MBC. Compared with the grazed blocks, GE significantly decreased soil carbon release by 23.6% over the growing season and 21.4% annually, but it increased the temperature sensitivity (Q(10)) of R-s by 6.5% and 14.2% for the growing season and annually respectively. Therefore, GE may reduce the release of soil carbon from the Tibetan Plateau, but under future climate warming scenarios, the increases in Q(10) induced by GE could lead to increased carbon emissions.
英文关键词	Grazing exclusion microbial biomass carbon plant productivity soil respiration temperature sensitivity Tibetan Plateau
类型	Article
语种	英语
国家	Peoples R China ; USA
收录类别	SCI-E
WOS记录号	WOS:000369974900004
WOS关键词	BELOW-GROUND BIOMASS ; CO2 EFFLUX ; MICROBIAL RESPIRATION ; MOUNTAIN GRASSLANDS ; PLANT-COMMUNITIES ; SEASONAL PATTERNS ; INNER-MONGOLIA ; CLIMATE-CHANGE ; DESERT STEPPE ; LOESS PLATEAU
WOS类目	Ecology ; Evolutionary Biology
WOS研究方向	Environmental Sciences & Ecology ; Evolutionary Biology
来源机构	中国科学院西北生态环境资源研究院 ; 南京大学 ; 中国科学院地球环境研究所 ; 清华大学 ; University of California, Berkeley
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/192464
作者单位	1.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Xian 710061, Peoples R China; 2.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710061, Peoples R China; 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 4.E China Normal Univ, Sch Ecol & Environm Sci, Ctr Global Change & Ecol Forecasting, Shanghai 200062, Peoples R China; 5.Chinese Acad Sci, State Key Lab Frozen Soil Engn Cold & Arid Reg En, Lanzhou 730000, Peoples R China; 6.Chinese Acad Sci, Engn Res Inst, Lanzhou 730000, Peoples R China; 7.Univ Calif Berkeley, Dept Environm Sci Policy & Management, Berkeley, CA 94720 USA; 8.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian 710049, Peoples R China; 9.Chinese Acad Forestry, Res Inst Forest Ecol Environm & Protect, Beijing 100091, Peoples R China; 10.Nanjing Univ, Sch Life Sci, Nanjing 210093, Jiangsu, Peoples R China; 11.Univ Oklahoma, Dept Microbiol & Plant Biol, Norman, OK 73019 USA; 12.Tsinghua Univ, Ctr Earth Syst Sci, Beijing 100084, Peoples R China
推荐引用方式 GB/T 7714	Chen, Ji,Zhou, Xuhui,Wang, Junfeng,et al. Grazing exclusion reduced soil respiration but increased its temperature sensitivity in a Meadow Grassland on the Tibetan Plateau[J]. 中国科学院西北生态环境资源研究院, 南京大学, 中国科学院地球环境研究所, 清华大学, University of California, Berkeley,2016,6(3):675-687.
APA	Chen, Ji.,Zhou, Xuhui.,Wang, Junfeng.,Hruska, Tracy.,Shi, Weiyu.,...&Luo, Yiqi.(2016).Grazing exclusion reduced soil respiration but increased its temperature sensitivity in a Meadow Grassland on the Tibetan Plateau.ECOLOGY AND EVOLUTION,6(3),675-687.
MLA	Chen, Ji,et al."Grazing exclusion reduced soil respiration but increased its temperature sensitivity in a Meadow Grassland on the Tibetan Plateau".ECOLOGY AND EVOLUTION 6.3(2016):675-687.