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Ecological Risk Assessment of Transboundary Region Based on Land-Cover Change: A Case Study of Gandaki River Basin, Himalayas

文献类型：期刊论文

作者Cui, Bohao1,2; Zhang, Yili1,2; Wang, Zhaofeng1,2; Gu, Changjun1,2; Liu, Linshan2; Wei, Bo1,2; Gong, Dianqing1,2; Rai, Mohan Kumar1,2
刊名LAND
出版日期2022-05-01
卷号11期号:5页码:22
关键词transboundary basin ecological risk assessment land cover Himalayas
DOI10.3390/land11050638
通讯作者Liu, Linshan(liuls@igsnrr.ac.cn)
英文摘要Land-cover change is a major cause of global ecosystem degradation, a severe threat to sustainable development and human welfare. In mountainous regions that cross national political boundaries, sensitive and fragile ecosystems are under complex disturbance pressures. Land-cover change may further exacerbate ecological risks in these regions. However, few studies have assessed the ecological risks in transboundary areas. This study focused on the Gandaki Basin (GRB), a typical transboundary region in the Himalayas. Based on the dynamic change in land cover, the landscape ecological risk index (ERI) model was constructed to assess the ecological risk in the GRB, revealing the evolution characteristics and spatial correlation of such a risk during the period 1990-2020. The results showed that all land cover types in the GRB have changed over the last 30 years. The interconversion of cropland and forestland was a distinctive feature in all periods. Overall, the medium and medium to low ecological risk level areas account for approximately 65% of the study area. The areas of high ecological risk were mainly distributed in the high elevation mountains of the northern Himalayas, while the low risk areas were located in the other mountains and hills of Nepal. In addition, the ecological risk in the Gandaki basin has shown a fluctuating trend of increasing over the past 30 years. However, there were different phases, with the order of ecological risk being 2020 >2000 >2010 >1990. Ecological risks displayed positive spatial correlation and aggregation characteristics across periods. The high-high risk clusters were primarily located in the high and medium high ecological risk areas, while the low-low risk clusters were similar to low risk levels region. The findings provided the reference for ecosystem conservation and landscape management in transboundary areas.
WOS关键词CLIMATE-CHANGE ; ECOSYSTEM SERVICES ; TIBETAN PLATEAU ; FOREST DEGRADATION ; PROTECTED AREAS ; NEPAL ; INDEX ; VULNERABILITY ; CONSERVATION ; MANAGEMENT
资助项目Strategic Priority Research Program of the Chinese Academy of Sciences[XDA20040201] ; Second Tibetan Plateau Scientific Expedition and Research[2019QZKK0603] ; Award of 2019 CAS-TWAS President's Fellowship[2019-001]
WOS研究方向Environmental Sciences & Ecology
语种英语
出版者MDPI
WOS记录号WOS:000803482600001
资助机构Strategic Priority Research Program of the Chinese Academy of Sciences ; Second Tibetan Plateau Scientific Expedition and Research ; Award of 2019 CAS-TWAS President's Fellowship
源URL[http://ir.igsnrr.ac.cn/handle/311030/178242]  
专题中国科学院地理科学与资源研究所
通讯作者Liu, Linshan
作者单位1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China
推荐引用方式
GB/T 7714		 Cui, Bohao,Zhang, Yili,Wang, Zhaofeng,et al. Ecological Risk Assessment of Transboundary Region Based on Land-Cover Change: A Case Study of Gandaki River Basin, Himalayas[J]. LAND,2022,11(5):22.
APA Cui, Bohao.,Zhang, Yili.,Wang, Zhaofeng.,Gu, Changjun.,Liu, Linshan.,...&Rai, Mohan Kumar.(2022).Ecological Risk Assessment of Transboundary Region Based on Land-Cover Change: A Case Study of Gandaki River Basin, Himalayas.LAND,11(5),22.
MLA Cui, Bohao,et al."Ecological Risk Assessment of Transboundary Region Based on Land-Cover Change: A Case Study of Gandaki River Basin, Himalayas".LAND 11.5(2022):22.

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来源：地理科学与资源研究所

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