NWIPB OpenIR
Warm- and cold-season grazing affect soil respiration differently in alpine grasslands
Wang, Hao1,2,3; Liu, Huiying1,2; Wang, Yonghui1,2; Xu, Wei1,2; Liu, Anrong1,2; Ma, Zhiyuan1,2; Mi, Zhaorong3; Zhang, Zhenhua3; Wang, Shiping4,5; He, Jin-Sheng1,2,3
2017-10-01
发表期刊AGRICULTURE ECOSYSTEMS & ENVIRONMENT
ISSN0167-8809
卷号248页码:136-143
文章类型Article
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.
关键词Autotrophic Respiration Heterotrophic Respiration Carbon Dioxide Carbon Cycling Grazing Pattern The Tibetan Plateau
WOS标题词Science & Technology ; Life Sciences & Biomedicine
DOI10.1016/j.agee.2017.07.041
关键词[WOS]TIBETAN PLATEAU ; TEMPERATURE SENSITIVITY ; CARBON ; NITROGEN ; MEADOW ; IMPACTS ; METAANALYSIS ; RESPONSES ; ECOSYSTEM ; PRAIRIE
收录类别SCI
语种英语
项目资助者National Natural Science Foundation of China(31570394 ; National Program on Key Basic Research Project(2014CB954000) ; Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University ; 31630009)
WOS研究方向Agriculture ; Environmental Sciences & Ecology
WOS类目Agriculture, Multidisciplinary ; Ecology ; Environmental Sciences
WOS记录号WOS:000411539700015
出版者ELSEVIER SCIENCE BV
引用统计
被引频次:18[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://210.75.249.4/handle/363003/9817
专题中国科学院西北高原生物研究所
通讯作者He, Jin-Sheng
作者单位1.Peking Univ, Coll Urban & Environm Sci, Dept Ecol, Beijing 100871, Peoples R China
2.Peking Univ, Minist Educ, Key Lab Earth Surface Proc, Beijing 100871, Peoples R China
3.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining 810008, Qinghai, Peoples R China
4.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol & Biodivers, Beijing 100085, Peoples R China
5.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
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GB/T 7714
Wang, Hao,Liu, Huiying,Wang, Yonghui,et al. Warm- and cold-season grazing affect soil respiration differently in alpine grasslands[J]. AGRICULTURE ECOSYSTEMS & ENVIRONMENT,2017,248:136-143.
APA Wang, Hao.,Liu, Huiying.,Wang, Yonghui.,Xu, Wei.,Liu, Anrong.,...&He, Jin-Sheng.(2017).Warm- and cold-season grazing affect soil respiration differently in alpine grasslands.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,248,136-143.
MLA Wang, Hao,et al."Warm- and cold-season grazing affect soil respiration differently in alpine grasslands".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 248(2017):136-143.
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