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Decadal loss of paddy fields driven by cumulative human activities in the Three Gorges Reservoir area, China

文献类型：期刊论文

作者He, Xiubin1; Wang, Mingfeng1,3; Tang, Qiang1,2; Bao, Yuhai1; Li, Jinlin1,3; Khurram, Dil1,3
刊名LAND DEGRADATION & DEVELOPMENT
出版日期2020-03-10
页码DOI: 10.1002/ldr.3574
关键词dam construction ecosystem services land degradation land use change paddy fields Three Gorges Reservoir area
ISSN号1085-3278
DOI10.1002/ldr.3574
产权排序1
通讯作者Tang, Qiang(qiangtang@imde.ac.cn)
文献子类Article; Early Access
英文摘要Paddy fields are valuable agricultural land resources in the Three Gorges Reservoir area of China but have been threatened by the expansion and intensification of human activities over recent decades. How paddy fields evolve under human disturbances remains poorly understood, which is critical for land use planning to compromise agricultural production and ecosystem conservation as limited land resource is available. In this study, the spatial and temporal patterns of change in paddy fields were depicted and principal driving forces were explained. Mapping of paddy fields with LANDSAT satellite images reveals a constant declining trend by 14.3% in the period 1990-2015. The gross loss area is 903.3 km(2), with an annual average decreasing rate being 36.1 km(2)center dot yr(-1). The transformation matrix between paddy fields and other land uses explicitly explains the impact trajectories of multiple human activities. Specifically, 39.6% (408.1 km(2)) of the gross loss was converted to built-up lands, reflecting town translocation and human resettlement (involuntary population migration) proposed by construction of the Three Gorges Dam, as well as urbanization, industrial development and infrastructure expansion along with economic development. The area converted to forests accounts for 26.4% (238.2 km(2)), which could be ascribed to land abandonment and the reforestation campaign. 23.1% (208.7 km(2)) was converted to dry croplands by shifts in farmers' preference on crop selection following socioeconomic changes (e.g., voluntary rural population migration, land use policy adjustment, commercial farming enterprises expansion). 46.5 km(2) was converted to water bodies, indicating the effect of impoundment of the Three Gorges Reservoir.
电子版国际标准刊号1099-145X
WOS关键词LAND-USE CHANGES ; WATER-RETENTION FUNCTION ; SOIL-EROSION ; ECOSYSTEM SERVICES ; XIANGXI CATCHMENT ; SEDIMENT DELIVERY ; PROJECT ; REGION ; RICE ; URBANIZATION
资助项目Chinese Academy of Sciences ; National Natural Science Foundation of China[41771321] ; National Natural Science Foundation of China[41771320] ; National Natural Science Foundation of China[41977075]
WOS研究方向Environmental Sciences & Ecology ; Agriculture
语种英语
WOS记录号WOS:000518651900001
出版者WILEY
资助机构Chinese Academy of Sciences ; National Natural Science Foundation of China
源URL[http://ir.imde.ac.cn/handle/131551/34099]  
专题成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
通讯作者Tang, Qiang
作者单位1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu, Sichuan, Peoples R China;
2.Rothamsted Res, Sustainable Agr Sci Dept, Okehampton, Devon, England
3.Univ Chinese Acad Sci, Beijing, Peoples R China;
推荐引用方式
GB/T 7714		 He, Xiubin,Wang, Mingfeng,Tang, Qiang,et al. Decadal loss of paddy fields driven by cumulative human activities in the Three Gorges Reservoir area, China[J]. LAND DEGRADATION & DEVELOPMENT,2020:DOI: 10.1002/ldr.3574.
APA He, Xiubin,Wang, Mingfeng,Tang, Qiang,Bao, Yuhai,Li, Jinlin,&Khurram, Dil.(2020).Decadal loss of paddy fields driven by cumulative human activities in the Three Gorges Reservoir area, China.LAND DEGRADATION & DEVELOPMENT,DOI: 10.1002/ldr.3574.
MLA He, Xiubin,et al."Decadal loss of paddy fields driven by cumulative human activities in the Three Gorges Reservoir area, China".LAND DEGRADATION & DEVELOPMENT (2020):DOI: 10.1002/ldr.3574.

入库方式： OAI收割

来源：成都山地灾害与环境研究所

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