Divergent responses of ecosystem respiration components to livestock exclusion on the Qinghai Tibetan Plateau
文献类型：期刊论文
| 作者 | Chen, Ji1,2,3; Luo, Yiqi4,5; Xia, Jianyang6,7; Zhou, Xuhui6,7; Niu, Shuli8; Shelton, Shelby9; Guo, Wei10; Liu, Suixin1,2; Dai, Wenting1,2; Cao, Junji1,2,11 |
| 刊名 | LAND DEGRADATION & DEVELOPMENT
 |
| 出版日期 | 2018-06-01 |
| 卷号 | 29期号:6页码:1726-1737 |
| ISSN号 | 1085-3278 |
| 关键词 | ecosystem respiration livestock grazing meadow grassland microbial biomass plant functional types |
| DOI | 10.1002/ldr.2981 |
| 通讯作者 | Chen, Ji(chenji@ieecas.cn) ; Cao, Junji(cao@loess.llqg.ac.cn) |
| 英文摘要 | Grazing exclusion (GE) is an effective method for protecting degraded grasslands, and it can profoundly affect ecosystem carbon (C) cycles. Ecosystem respiration (ER), which includes both autotrophic and heterotrophic respiration (HR), accounts for the largest land-to-atmosphere C fluxes. How ER responds to GE is still unclear, however, and to investigate this, a controlled GE experiment was conducted at a meadow grassland near Qinghai Lake, China. Animal exclusion enhanced ER and aboveground plant respiration (R-agb) by 10.5% and 40.1%, respectively, but it suppressed soil respiration by 12.4% and HR by 17.6%. Positive responses of ER and R-agb were linked to increased aboveground biomass, particularly graminoids biomass. Negative responses of soil respiration and HR were associated with GE-induced changes in microbial biomass C and nitrogen. These results show that grassland responded in complex ways to GE and that ER and its components were regulated by both abiotic and biotic factors. Moreover, the divergent responses of respiration components have important implications for models of terrestrial C cycles and climate under enhanced human activities and changes in land use. |
| WOS关键词 | SOIL MICROBIAL COMMUNITIES ; GRAZING EXCLUSION ; GROWING-SEASON ; MEADOW GRASSLAND ; LAND-USE ; TEMPERATURE SENSITIVITY ; RANGELAND DEGRADATION ; ALPINE GRASSLANDS ; ROOT RESPIRATION ; LOESS PLATEAU |
| 资助项目 | US National Science Foundation[DBI 0850290] ; US National Science Foundation[EPS0919466] ; US National Science Foundation[DEB 0743778] ; US National Science Foundation[DEB 0840964 OIA-1301789] ; US National Science Foundation[EF 1137293] ; China Ministry of Science Technology[2012BAH31B03] ; China Scholarship Council ; United States Department of Energy[DE-SC00114085] ; National Science Fund for Distinguished Young Scholars[31325005] ; NSFC-Yunnan United fund[U1302267] ; Key Laboratory of Aerosol Chemistry and Physics[KLACP-17-02] ; State Key Laboratory of Loess and Quaternary Geology[SKLLQG1602] ; Natural Science Basic Research Plan in Shaanxi Province[2017JQ3041] ; China Postdoctoral Projects[2017M610647] ; Fundamental Research Funds for the Central Universities[3102016QD078] ; National Natural Science Foundation of China[41701292] |
| WOS研究方向 | Environmental Sciences & Ecology ; Agriculture |
| 语种 | 英语 |
| 出版者 | WILEY |
| WOS记录号 | WOS:000435278900018 |
| 资助机构 | US National Science Foundation ; China Ministry of Science Technology ; China Scholarship Council ; United States Department of Energy ; National Science Fund for Distinguished Young Scholars ; NSFC-Yunnan United fund ; Key Laboratory of Aerosol Chemistry and Physics ; State Key Laboratory of Loess and Quaternary Geology ; Natural Science Basic Research Plan in Shaanxi Province ; China Postdoctoral Projects ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/54736]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Chen, Ji; Cao, Junji |
| 作者单位 | 1.Chinese Acad Sci, SKLLQG, Inst Earth Environm, Xian 710061, Shaanxi, Peoples R China 2.Chinese Acad Sci, Key Lab Aerosol Chem & Phys, Inst Earth Environm, Xian 710061, Shaanxi, Peoples R China 3.Northwestern Polytech Univ, Key Lab Space Biosci & Biotechnol, Ctr Ecol & Environm Sci, Xian 710072, Shaanxi, Peoples R China 4.Tsinghua Univ, Dept Earth Syst Sci, Beijing 100084, Peoples R China 5.No Arizona Univ, Ctr Ecosyst Sci & Soc, Flagstaff, AZ 86011 USA 6.East China Normal Univ, Sch Ecol & Environm Sci, Tiantong Natl Field Observat Stn Forest Ecosyst, Shanghai 200062, Peoples R China 7.East China Normal Univ, Ctr Global Change & Ecol Forecasting, Shanghai 200062, Peoples R China 8.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Synth Res Ctr Chinese Ecosyst Res Network, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 9.Univ Colorado, Dept Emergency Med, Denver, CO 80045 USA 10.Xi An Jiao Tong Univ, Dept Earth & Environm Sci, Xian 710049, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Ji,Luo, Yiqi,Xia, Jianyang,et al. Divergent responses of ecosystem respiration components to livestock exclusion on the Qinghai Tibetan Plateau[J]. LAND DEGRADATION & DEVELOPMENT,2018,29(6):1726-1737. |
| APA | Chen, Ji.,Luo, Yiqi.,Xia, Jianyang.,Zhou, Xuhui.,Niu, Shuli.,...&Cao, Junji.(2018).Divergent responses of ecosystem respiration components to livestock exclusion on the Qinghai Tibetan Plateau.LAND DEGRADATION & DEVELOPMENT,29(6),1726-1737. |
| MLA | Chen, Ji,et al."Divergent responses of ecosystem respiration components to livestock exclusion on the Qinghai Tibetan Plateau".LAND DEGRADATION & DEVELOPMENT 29.6(2018):1726-1737. |
入库方式： OAI收割
来源：地理科学与资源研究所
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