江苏省耕地后备资源空间分布特征

发布时间：2018-04-03 05:13

本文选题：耕地后备资源　切入点：空间分布　出处：《南京师大学报(自然科学版)》2017年01期

【摘要】：利用面板数据和空间数据,借助空间基尼系数、集中化指数、组合系数等方法,探讨了江苏省耕地后备资源空间分布特征.结果显示:(1)江苏省耕地后备资源总量由南向北依次递增,整体分布不均匀,呈现出苏北苏南苏中的趋势,内陆滩涂为省内后备资源的主要来源,且耕地后备资源集中分布于沿海沿湖及古黄河故道沿岸地区.(2)境内各地类空间集聚性强,各县耕地后备资源集中化程度高,70%左右的县域为单一地类组合类型,利用结构相对单一.(3)江苏省未来开发应以滩涂资源为主,并辅之异地占补,从而实现省内资源可持续开发利用.通过实证分析,得出研究结论:基尼系数、集中化指数和组合系数等方法相辅相成,揭示并量化了各县域耕地后备资源地类集聚程度及分布特征,可为挖掘后备资源分布特征、解译耕地后备资源集聚效应、制定开发利用对策提供科学依据.
[Abstract]:Using panel data and spatial data, the spatial distribution characteristics of cultivated land reserve resources in Jiangsu Province were discussed by means of spatial Gini coefficient, concentration index and combination coefficient.The results show that the total amount of cultivated land reserve resources in Jiangsu Province increases from south to north in turn, and the overall distribution is uneven, showing a trend in the middle of Jiangsu Province in northern Jiangsu Province. The inland tidal flat is the main source of reserve resources in the province.And the cultivated land reserve resources are concentrated in the coastal lake and the coastal area along the ancient Yellow River old road. The type of each county is a single type of land combination, which has a high concentration degree of about 70% of the cultivated land reserve resources.The utilization structure is relatively simple. 3) the future development of Jiangsu Province should be based on tidal flat resources, supplemented by different areas, so as to realize the sustainable development and utilization of resources in the province.Through the empirical analysis, we draw the conclusion that Gini coefficient, centralization index and combination coefficient complement each other, and reveal and quantify the gathering degree and distribution characteristics of the reserve resources of cultivated land in various counties, which can be used to excavate the distribution characteristics of the reserve resources.To interpret the accumulation effect of cultivated land reserve resources and to provide scientific basis for the development and utilization of countermeasures.
【作者单位】：扬州市国土资源局广陵分局;南京师范大学新型城镇化与土地问题研究中心;江苏省地理信息资源开发与利用协同创新中心;江苏省物质循环与污染控制重点实验室;
【基金】：国家自然科学基金(41271189) 全国耕地后备资源调查评价、江苏高校优势学科建设工程资助项目
【分类号】：F323.211

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