中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Warm- and cold-season grazing affect soil respiration differently in alpine grasslands

文献类型:期刊论文

作者Liu, HY (Liu, Huiying)1,5; Zhang, ZH (Zhang, Zhenhua)4; Wang, YH (Wang, Yonghui)1,5; He, JS (He, Jin-Sheng)1,4,5; Ma, ZY (Ma, Zhiyuan)1,5; Xu, W (Xu, Wei)1,5; Mi, ZR (Mi, Zhaorong)4; Wang, SP (Wang, Shiping)2,3; Liu, AR (Liu, Anrong)1,5; He, JS
刊名AGRICULTURE ECOSYSTEMS & ENVIRONMENT
出版日期2017
卷号248期号:0页码:136-143
关键词Tibetan Plateau Temperature Sensitivity Carbon Nitrogen Meadow Impacts Metaanalysis Responses Ecosystem Prairie
DOI10.1016/j.agee.2017.07.041
文献子类Article
英文摘要As a traditional practice in grasslands, grazing significantly affects soil respiration (R-s). To improve our understanding of grassland carbon cycling, it is critical to partition the responses of soil respiration to grazing into autotrophic (R-a) and heterotrophic (R-h) respiration. In addition, it remains unclear how grazing patterns, such as warm- and cold-season grazing, influence R-s, and its components in alpine grasslands that are subject to increasing grazing pressure. Here, we conducted a six-year manipulative experiment combining with a meta analysis, to investigate the responses of 12, and its components to moderate grazing in a Tibetan alpine grassland. Grazing patterns included warm-season grazing by sheep during the growing seasons of 2008 to 2010 and simulating cold-season grazing by clipping during the non-growing seasons of 2011 to 2013. Our results showed that warm-season grazing minimally affected R-s, while cold-season grazing significantly increased R-s, by 13.1%. This result was supported by a meta-analysis at seven grassland sites across the Tibetan Plateau. Further, we found that warm-season grazing did not affect R-a or R-h, whereas cold-season grazing enhanced Ra (23.2%) more than R-h (4.9%). Cold-season grazing affected 12, and R-a differently depending on interannual variation in climate conditions. A significant increase of 17.1% and 26.3%, respectively, was recorded in dry and cold years, but no change was recorded in wet and warm years. This study highlights the differential responses of R, components to grazing, and suggests that different grazing patterns should be considered when evaluating future carbon cycles in grazing ecosystems on the Tibetan Plateau.
学科主题普通生物学
WOS研究方向Agriculture; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000411539700015
源URL[http://ir.itpcas.ac.cn/handle/131C11/7969]  
专题青藏高原研究所_图书馆
通讯作者He, JS
作者单位1.Peking Univ, Coll Urban & Environm Sci, Dept Ecol, Beijing 100871, Peoples R China.
2.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China.
3.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol & Biodivers, Beijing 100085, Peoples R China.
4.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining 810008, Qinghai, Peoples R China.
5.Peking Univ, Minist Educ, Key Lab Earth Surface Proc, Beijing 100871, Peoples R China.
推荐引用方式
GB/T 7714
Liu, HY ,Zhang, ZH ,Wang, YH ,et al. Warm- and cold-season grazing affect soil respiration differently in alpine grasslands[J]. AGRICULTURE ECOSYSTEMS & ENVIRONMENT,2017,248(0):136-143.
APA Liu, HY .,Zhang, ZH .,Wang, YH .,He, JS .,Ma, ZY .,...&Wang, H .(2017).Warm- and cold-season grazing affect soil respiration differently in alpine grasslands.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,248(0),136-143.
MLA Liu, HY ,et al."Warm- and cold-season grazing affect soil respiration differently in alpine grasslands".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 248.0(2017):136-143.

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来源:青藏高原研究所

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