Assessing Rangeland Sensitivity to Degradation in North Tibet
文献类型：期刊论文
| 作者 | Duan, Cheng1,2; Shi, Peili1,2; Zong, Ning2; Zhang, Xianzhou1,2; Yu, Chengqun2 |
| 刊名 | RANGELAND ECOLOGY & MANAGEMENT
 |
| 出版日期 | 2022-09-01 |
| 卷号 | 84期号:1页码:86-97 |
| 关键词 | Alpine rangelands Environmentally sensitive area index Geographic information system Random forest Tibet |
| ISSN号 | 1550-7424 |
| DOI | 10.1016/j.rama.2022.07.001 |
| 通讯作者 | Shi, Peili(shipl@igsnrr.ac.cn) |
| 英文摘要 | Rangelands are the dominant ecosystems in the Tibetan Plateau and the most critical livestock production resources. However, a large quantity of rangelands has degraded in North Tibet, with declined forage yield and invaded unpalatable weeds. Thus, identifying potential degradation is essential to manage rangelands sustainably in the future. In this study, we aimed to use an environmentally sensitive area index (ESAI) that integrated the conditions of vegetation, soil, climate, and management to assess rangeland degradation in North Tibet and identify the major drivers of degradation by the random forest model. The ESAI contained 16 indicators of the selected four categories, which were input by layers from geographic information system data. The results revealed that 33% of the study area was susceptive to rangeland degradation, in which alpine desert-steppes in the west, with the highest mean ESAI scores of 1.38, were the most sensitive areas. According to the degrees of degradation, only 9% of rangelands in the east had low mean values of ESAI (< 1.22), which were mostly located in the alpine meadow. The importance ranking for rangeland degradation based on the random forest model indicated that the highest importance was vegetation cover type, followed by grazing intensity and aridity with more than 60% mean decrease accuracy. Besides, field measurements showed that the adjusted correlation coefficient of multiple regression of four vegetation degradation indicators was 0.86, illustrating that the assessment as a proxy for rangeland degradation sensitivity is feasible. This study provides an important approach to evaluating potential rangeland degradation. Therefore, the assessment model is recommended for regional-level decision makers to manage rangeland degradation with full consideration of local physical conditions. (C) 2022 The Society for Range Management. Published by Elsevier Inc. All rights reserved. |
| WOS关键词 | CLIMATE-CHANGE ; ALPINE GRASSLAND ; LAND DEGRADATION ; PLANT DIVERSITY ; ANTHROPOGENIC ACTIVITIES ; VEGETATION COMPOSITION ; AREA INDEX ; PLATEAU ; PRODUCTIVITY ; RESTORATION |
| 资助项目 | Second Tibetan Plateau Scientific Expedition and Research Program[2019QZKK1002] ; National Natural Science Foundation of China[31870406] ; Major Scientific and Technological Special Project of Tibet Autonomous Region[XZ202101ZD0 007G] ; Major Scientific and Technological Special Project of Tibet Autonomous Region[XZ202101ZD0003N] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000860454200009 |
| 出版者 | SOC RANGE MANAGEMENT |
| 资助机构 | Second Tibetan Plateau Scientific Expedition and Research Program ; National Natural Science Foundation of China ; Major Scientific and Technological Special Project of Tibet Autonomous Region |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/185198]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Shi, Peili |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modelling, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Duan, Cheng,Shi, Peili,Zong, Ning,et al. Assessing Rangeland Sensitivity to Degradation in North Tibet[J]. RANGELAND ECOLOGY & MANAGEMENT,2022,84(1):86-97. |
| APA | Duan, Cheng,Shi, Peili,Zong, Ning,Zhang, Xianzhou,&Yu, Chengqun.(2022).Assessing Rangeland Sensitivity to Degradation in North Tibet.RANGELAND ECOLOGY & MANAGEMENT,84(1),86-97. |
| MLA | Duan, Cheng,et al."Assessing Rangeland Sensitivity to Degradation in North Tibet".RANGELAND ECOLOGY & MANAGEMENT 84.1(2022):86-97. |
入库方式： OAI收割
来源：地理科学与资源研究所
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