JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2020, Vol. 44 ›› Issue (5): 181-188.doi: 10.3969/j.issn.1000-2006.201907047

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Evolution characteristics and driving mechanisms of cultivated landscape eco-security patterns in rapid urbanization areas

CAI Han1(), ZHU Quan1, LUO Yunjian1, MA Kun2   

  1. 1. College of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, China
    2. College of Landscape Architecture, Nanjing Forestry University, Nanjing 210037, China
  • Received:2019-07-31 Revised:2019-10-25 Online:2020-10-30 Published:2020-11-19

Abstract:

【Objective】 The aim of this study is to explore new methods and ideas for determining evolution characteristics of cultivated land landscape ecological security patterns and its driving mechanisms in rapid urbanization areas, and to provide a scientific basis for implementing the “1.8 billion mu arable land” protection policy. 【Method】 Considering the cultivated land landscape of Yangzhou, Jiangsu Province, as the object, we used Fragstas4.2 software and ArcGIS10.2 software to simulate the spatial and temporal evolution characteristics of the security pattern of the cultivated land landscape in the study area. Based on statistical yearbook data, we used the Geo-detector to screen for the dominant influencing factors and then included the information in the GWR 4.09 software to analyze spatial differences between the influencing factors. 【Result】 The landscape ecological security of cultivated land in Yangzhou City decreased annually from the areas surrounding the city center to the northwest. The explanatory degree of socio-economic impact factors was clearly higher than that of natural impact factors. There were significant spatial differences in the impact of various dominant socio-economic factors on the ecological security pattern of the cultivated land landscape in Yangzhou. 【Conclusion】 Combining the GIS spatial simulation, geo-detector screening, and GWR model analysis, we could scientifically and accurately simulate and analyze the spatial and temporal evolution characteristics, driving mechanisms, and spatial differences in the ecological security pattern of the cultivated land landscape in rapid urbanization areas.

Key words: cultivated land, landscape ecological security, geo-detector, GWR model, Yangzhou City, Jiangsu Province

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