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DOI10.7717/peerj.8513
Assessment of the vulnerability of alpine grasslands on the Qinghai-Tibetan Plateau
Li, Meng1,2; Zhang, Xianzhou1,3; He, Yongtao1,3; Niu, Ben1; Wu, Jianshuang4
通讯作者Zhang, Xianzhou
来源期刊PEERJ
ISSN2167-8359
出版年2020
卷号8
英文摘要Assessing ecosystem vulnerability to climate change is critical for sustainable and adaptive ecosystem management. Alpine grasslands on the Qinghai-Tibetan Plateau are considered to be vulnerable to climate change, yet the ecosystem tends to maintain stability by increasing resilience and decreasing sensitivity. To date, the spatial pattern of grassland vulnerability to climate change and the mechanisms that vegetation applies to mitigate the impacts of climate change on grasslands by altering relevant ecosystem characteristics, especially sensitivity and resilience, remain unknown. In this study, we first assessed the spatial pattern of grassland vulnerability to climate change by integrating exposure, sensitivity, and resilience simultaneously, and then identified its driving forces. The results show that grasslands with high vulnerability were mainly located on the edges of the plateau, whereas alpine grasslands in the hinterlands of the plateau showed a low vulnerability. This spatial pattern of alpine grassland vulnerability was controlled by climatic exposure, and grassland sensitivity and resilience to climate change might also exacerbate or alleviate the degree of vulnerability. Climate change had variable impacts on different grassland types. Desert steppes were more vulnerable to climate change than alpine meadows and alpine steppes because of the high variability in environmental factors and their low ability to recover from perturbations. Our findings also confirm that grazing intensity, a quantitative index of the most important human disturbance on alpine grasslands in this plateau, was significantly correlated with ecosystem vulnerability. Moderate grazing intensity was of benefit for increasing grassland resilience and then subsequently reducing grassland vulnerability. Thus, this study suggests that future assessments of ecosystem vulnerability should not ignore anthropogenic disturbances, which might benefit environmental protection and sustainable management of grasslands on the Qinghai-Tibetan Plateau.
英文关键词Alpine grasslands Exposure Sensitivity Resilience Vulnerability
类型Article
语种英语
国家Peoples R China
开放获取类型Green Published, gold
收录类别SCI-E
WOS记录号WOS:000511439900010
WOS关键词CLIMATE-CHANGE ; SPECIES COMPOSITION ; PLANT DIVERSITY ; IMPACTS ; PRECIPITATION ; PRODUCTIVITY ; VARIABILITY ; SENSITIVITY ; TEMPERATURE ; VEGETATION
WOS类目Multidisciplinary Sciences
WOS研究方向Science & Technology - Other Topics
来源机构中国科学院地理科学与资源研究所
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/315290
作者单位1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modelling, Lhasa Natl Ecol Res Stn, Beijing, Peoples R China;
2.Univ Chinese Acad Sci, Beijing, Peoples R China;
3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China;
4.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Beijing, Peoples R China
推荐引用方式
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Li, Meng,Zhang, Xianzhou,He, Yongtao,et al. Assessment of the vulnerability of alpine grasslands on the Qinghai-Tibetan Plateau[J]. 中国科学院地理科学与资源研究所,2020,8.
APA Li, Meng,Zhang, Xianzhou,He, Yongtao,Niu, Ben,&Wu, Jianshuang.(2020).Assessment of the vulnerability of alpine grasslands on the Qinghai-Tibetan Plateau.PEERJ,8.
MLA Li, Meng,et al."Assessment of the vulnerability of alpine grasslands on the Qinghai-Tibetan Plateau".PEERJ 8(2020).
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