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Dynamic forage-livestock balance analysis in alpine grasslands on the Northern Tibetan Plateau

文献类型：期刊论文

作者Cao, Yanan1,2; Wu, Jianshuang1,3; Zhang, Xianzhou1; Niu, Ben1; Li, Meng1,2; Zhang, Yanjie1,2; Wang, Xiangtao1,2; Wang, Zhipeng1,2
刊名JOURNAL OF ENVIRONMENTAL MANAGEMENT
出版日期2019-05-15
卷号238页码:352-359
关键词Climate change Human activities Aboveground biomass Forage-livestock balance Sustainability
ISSN号0301-4797
DOI10.1016/j.jenvman.2019.03.010
通讯作者Zhang, Xianzhou(zhangxz@igsnrr.ac.cn)
英文摘要Forage-livestock balance is important for sustainable management of alpine grasslands under global change, but the robustness of diverse algorithms for assessing forage-livestock balance is still unclear. This study compiled long-term (2009-2014) field observations of aboveground biomass (AGB). Using climate and remote sensing data, we evaluated the inter-annual dynamics of the forage-livestock balance on the Northern Tibetan Plateau (NIP). Here, we assumed that AGB dynamics in fenced grasslands (AGB(F)) is only driven by climate change; whereas AGB dynamics in open grasslands grazed by livestock (AGB(G)) is driven by a combination of climate change and human activities. Thus, human-induced change in AGB (AGB(H)) could be estimated via the difference between AGB(F) and AGB(G). Furthermore, differences in the temporal trends between AGB(F) and AGB(H) could indicate the state of forage-livestock balance, overgrazed or not, in alpine grasslands. Our results showed that the overall status of the forage-livestock balance from 2000 to 2006 was overgrazed owing to poor climatic conditions. Ecological projects and economic policies for alpine grassland conservation had not been implemented at that time, which also resulted in local overgrazing. From 2006 to 2014, the alpine grasslands in some areas were in a less-grazed state. We suggest that the livestock number could potentially increase in northern NTP and should be reduced or strictly controlled to maintain the balance between livestock and forage in the southern and southeast areas. In conclusion, the results of this study suggest that the evaluation of the forage-livestock balance in the NTP should include the local climatic conditions and make better use of grassland resources while ensuring ecological security.
WOS关键词NET PRIMARY PRODUCTIVITY ; CLIMATE-CHANGE ; GRAZING EXCLUSION ; VEGETATION ; CARBON ; BIOMASS ; CHINA ; NITROGEN ; IMPACTS ; DEGRADATION
资助项目Ministry of Science and Technology of China[2016YFC0502001] ; National Natural Sciences Foundation of China[41571042] ; Chinese Academy of Sciences project[KFJ-STS-ZDTP-036] ; West Light Foundation of the Chinese Academy of Sciences[BENNIU2018] ; Alexander von Humboldt Foundation
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000464296400039
出版者ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
资助机构Ministry of Science and Technology of China ; National Natural Sciences Foundation of China ; Chinese Academy of Sciences project ; West Light Foundation of the Chinese Academy of Sciences ; Alexander von Humboldt Foundation
源URL[http://ir.igsnrr.ac.cn/handle/311030/48081]  
专题中国科学院地理科学与资源研究所
通讯作者Zhang, Xianzhou
作者单位1.Chinese Acad Sci, Lhasa Plateau Ecosyst Res Stn, Key Lab Ecosyst Network Observat & Modelling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Free Univ Berlin, Inst Biol, Biodivers Theoret Ecol, Altensteinstr 34, D-14195 Berlin, Germany
推荐引用方式
GB/T 7714		 Cao, Yanan,Wu, Jianshuang,Zhang, Xianzhou,et al. Dynamic forage-livestock balance analysis in alpine grasslands on the Northern Tibetan Plateau[J]. JOURNAL OF ENVIRONMENTAL MANAGEMENT,2019,238:352-359.
APA Cao, Yanan.,Wu, Jianshuang.,Zhang, Xianzhou.,Niu, Ben.,Li, Meng.,...&Wang, Zhipeng.(2019).Dynamic forage-livestock balance analysis in alpine grasslands on the Northern Tibetan Plateau.JOURNAL OF ENVIRONMENTAL MANAGEMENT,238,352-359.
MLA Cao, Yanan,et al."Dynamic forage-livestock balance analysis in alpine grasslands on the Northern Tibetan Plateau".JOURNAL OF ENVIRONMENTAL MANAGEMENT 238(2019):352-359.

入库方式： OAI收割

来源：地理科学与资源研究所

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