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Spatiotemporal Degradation of Abandoned Farmland and Associated Eco-Environmental Risks in the High Mountains of the Nepalese Himalayas

文献类型：期刊论文

作者Chaudhary, Suresh1,2,3,5; Wang, Yukuan1,2; Dixit, Amod Mani3; Khanal, Narendra Raj4; Xu, Pei1,2; Fu, Bin1,2; Yan, Kun1,2; Liu, Qin1,2; Lu, Yafeng1,2; Li, Ming1,2
刊名LAND
出版日期2020
卷号9期号:1页码:1
关键词farmland abandonment spatiotemporal degradation eco-environmental risk regression model mountain region Nepal
DOI10.3390/land9010001
通讯作者Wang, Yukuan(wangyukuan@imde.ac.cn)
产权排序1
文献子类Article
英文摘要Globally, farmland abandonment has been a major phenomenon for eco-environmental and social landscape changes in the mountain regions. Farmland abandonment led to endangering the capacity of mountain ecosystems as well as variety of eco-environmental processes that play a pivotal role in regional as well local level eco-environment security. This research aims to (i) assess the spatiotemporal degradation of abandoned farmlands, (ii) identify the major causes of farmland degradation, and (iii) analyze the eco-environmental risks triggered or exacerbated by the degradation of abandoned farmlands. We conducted an inventory of the spatiotemporal distribution of abandoned farmlands and their degradation status with Google earth images and by modeling and interpreting low-height remote sensing images taken by an unmanned aerial vehicle (UAV). Geomorphic damages were mapped at the scale of individual abandoned farms. A multivariate regression statistical (MRS) model was used to identify the major causes of degradation. This research revealed that out of the total surveyed farmlands, 92% were already completely irreversibly damaged. The damages started with the disruption of terraces and bulging processes that occurred within the year after abandonment. This degradation induced diverse hazardous processes, such as landslides, debris flows, rock falls, the formation of gullies, soil erosion, and the development of sinkholes, which increase the negative effects of on both land resources and plant succession. Farmland abandonment does not automatically lead to plant colonization because geomorphic damage is intensified prior to colonization. Therefore, land management is required for plant colonization as well as other efforts to reduce degradation induced eco-environmental risk. This study thus could help land planners and environmentalists in the development of suitable guidelines (pre- or post-abandonment) plans, programmes, and legislation to effectively address the problem of abandoned farmland.
电子版国际标准刊号2073-445X
WOS关键词LAND-USE CHANGE ; SOIL-EROSION ; AGRICULTURAL ABANDONMENT ; SEMIARID ENVIRONMENT ; MANAGEMENT ; LANDSCAPE ; RUNOFF ; AREAS ; CONSEQUENCES ; LIVELIHOODS
资助项目135 strategic program of the Institute of Mountain Hazards and Environment, Chinese Academy of Science[SDS - 135 - 1703] ; International talent program of the Chinese Academy of the Sciences[2019 VCA 0026] ; Chinese Academy of Sciences-theWorld Academy of Sciences (CAS-TWAS) Presidents Fellowship program
WOS研究方向Environmental Sciences & Ecology
语种英语
出版者MDPI
WOS记录号WOS:000513129300004
资助机构135 strategic program of the Institute of Mountain Hazards and Environment, Chinese Academy of Science ; International talent program of the Chinese Academy of the Sciences ; Chinese Academy of Sciences-theWorld Academy of Sciences (CAS-TWAS) Presidents Fellowship program
源URL[http://ir.imde.ac.cn/handle/131551/33939]  
专题成都山地灾害与环境研究所_山区发展研究中心
通讯作者Wang, Yukuan
作者单位1.Three Gorges Project Ecol Environm Monitoring Sys, Wanzhou Key Reg Ecol & Environm Monitoring Stn, Wanzhou 404020, Peoples R China;
2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China;
3.Natl Soc Earthquake Technol Nepal, POB 13667, Kathmandu, Lalitpur, Nepal;
4.Tribhuvan Univ, Cent Dept Geog, Univ Campus,POB 44613, Kirtipur, Nepal
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China;
推荐引用方式
GB/T 7714		 Chaudhary, Suresh,Wang, Yukuan,Dixit, Amod Mani,et al. Spatiotemporal Degradation of Abandoned Farmland and Associated Eco-Environmental Risks in the High Mountains of the Nepalese Himalayas[J]. LAND,2020,9(1):1.
APA Chaudhary, Suresh.,Wang, Yukuan.,Dixit, Amod Mani.,Khanal, Narendra Raj.,Xu, Pei.,...&Li, Ming.(2020).Spatiotemporal Degradation of Abandoned Farmland and Associated Eco-Environmental Risks in the High Mountains of the Nepalese Himalayas.LAND,9(1),1.
MLA Chaudhary, Suresh,et al."Spatiotemporal Degradation of Abandoned Farmland and Associated Eco-Environmental Risks in the High Mountains of the Nepalese Himalayas".LAND 9.1(2020):1.

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来源：成都山地灾害与环境研究所

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