Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.7717/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
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ISSN | 2167-8359 |
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 GB/T 7714 | 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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