[1]Ao Yong,Zhang Yiheng,Wang Xiaofeng,et al.Spatiotemporal Changes and Driving Factors of Cultivated Land Fragmentation in Guanzhong Region Based on Landscape Index[J].Research of Soil and Water Conservation,2024,31(03):401-411.[doi:10.13869/j.cnki.rswc.2024.03.039]
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
31
Number of periods:
2024 03
Page number:
401-411
Column:
Public date:
2024-04-30
- Title:
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Spatiotemporal Changes and Driving Factors of Cultivated Land Fragmentation in Guanzhong Region Based on Landscape Index
- Author(s):
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Ao Yong1,2,3, Zhang Yiheng1,3, Wang Xiaofeng1,4, Wu Jingsheng4
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(1.School of Land Engineering, Chang'an University, Xi'an 710054, China; 2.Institute of Geographic Information, College of Resources, Chang'an University, Xi'an 710054, China; 3.Key Laboratory of Land Consolidation of Shaanxi Province, Xi'an 710054, China; 4.College of Resources, Chang'an University, Xi'an 710054, China)
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- Keywords:
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cultivated land fragmentation; temporal and spatial changes; geographic detector; landscape pattern index; Guanzhong area
- CLC:
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F301.21
- DOI:
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10.13869/j.cnki.rswc.2024.03.039
- Abstract:
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[Objective] The aims of this study are to optimize the fine management of cultivated land in Shaanxi Province, to coordinate the contradiction between food demand growth and environmental constraints, to maintain regional food security, and to promote agricultural modernization. [Methods] The Guanzhong area was taken as the research area. Based on land use data and other natural economic data, Lorentz curve, coefficient of variation method, landscape index, spatial autocorrelation and other methods were used to construct an evaluation model of cultivated land fragmentation to explore the temporal and spatial changes of cultivated land fragmentation(CLF)in Guanzhong area, and geographic detectors were used to analyze the driving force of CLF in the area. [Results](1)The spatial distribution of cultivated land resources in Guanzhong area was relatively balanced, and the degree of cultivated land specialization remained at a high level.(2)The spatial and temporal differences in the degree of CLF in Guanzhong region were significant, and the overall degree of CLF showed a downward trend, but the degree of CLF in some areas showed a trend of increasing and decreasing, and the overall trend was low in the east and high in the west.(3)The spatiotemporal differentiation of CLF in Guanzhong region was affected by many factors, and the comprehensive influence of socio-economic factors was significantly stronger than that of natural factors, among which altitude, population density, per capita arable land area and regional GDP were the main influencing factors. The interaction effect between factors was stronger than that of single factor, and two-factor enhancement and nonlinear enhancement were the mainstay. [Conclusion] The problem of cultivated land fragmentation in Guanzhong area has been improved to a certain extent in the past 20 years, but there are large regional differences, and the comprehensive management of cultivated land fragmentation should be further strengthened in terms of social and economic factors, so as to promote the development of agricultural mechanization and modernization in Guanzhong area.