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[1]CHANG Yuyang,ZHANG Tianzhu,ZHANG Fengrong,et al.Analysis on the Spatiotemporal Variability and Driving Factors of Cultivated Land Fragmentation in the Hilly Region of Eastern Gansu[J].Research of Soil and Water Conservation,2021,28(03):264-271.

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Analysis on the Spatiotemporal Variability and Driving Factors of Cultivated Land Fragmentation in the Hilly Region of Eastern Gansu

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 28 Number of periods: 2021 03 Page number: 264-271 Column: Public date: 2021-04-20

Title:: Analysis on the Spatiotemporal Variability and Driving Factors of Cultivated Land Fragmentation in the Hilly Region of Eastern Gansu

Author(s):: CHANG Yuyang^1,2, ZHANG Tianzhu^1,2, ZHANG Fengrong^1,2, SHI Jingshi³, XIE Zhen^1,2; (1.College of Land Science and Technology,China Agricultural University,Beijing100193,China;2.Key Laboratory for Agricultural Land Quality, Ministry of Natural Resources,Beijing100193,China;3.College of Computer Science and Engineering,Shandong University of Science and Technology,Qingdao,Shandong 266590,China)

Keywords:: cultivated land fragmentation; landscape pattern index; GeoDetector; Wannian County

CLC:: /

DOI:: -

Abstract:: Discussing the evolution characteristics and mechanism of cultivated land landscape fragmentation from the mesoscale can reflect the changes in the regional human-land relationship, provide a scientific basis for the optimized path of cultivated land fragmentation, and promote the development of cultivated land protection. Wannian County, a typical hilly area in eastern Jiangxi, was selected as the research area. Based on the research methods of GIS technology, landscape pattern index, entropy weight method, and geographic detector, the evolution and driving factors of cultivated land fragmentation were analyzed. The result showed that:(1)in Wannian County, the degree of cultivated land fragmentation increased significantly from 2009 to 2018, the spatial agglomeration effect of cultivated land fragmentation decreased, the area index and shape index of cultivated land fragmentation increased significantly, and the distribution index showed a downward trend;(2)the main driving factors of cultivated land fragmentation in Wannian County are elevation, township population density, distance from rural settlements and slope, and the detection factors have mutually or non-linearly enhanced effects on cultivated land fragmentation;(3)the main driving factors of townships with different functional types are various. The optimization of arable land fragmentation and optimization in different regions should optimize the allocation of land use based on resource endowments. Townships with different development orientations have different main drivers of cultivated land fragmentation based on social function zoning for the development of township development policies. The remediation of cultivated land fragmentation should optimize the allocation of land use based on resource endowment, and formulate township development policies based on social function zoning.

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Last Update: 2021-04-20