学术论文

      基于ESDA的我国耕地后备资源集聚特征的比较研究

      Comparative Research on the Agglomerative Characteristics of Cultivated Land Reserve Resources

      摘要:
      本文通过基尼系数、空间数据探索分析(ESDA)等统计方法,探索我国耕地后备资源各地类空间集聚特征及影响因素,为耕地后备资源的开发利用奠定理论基础.结果显示:①我国耕地后备资源各地类集聚程度差异较大,呈现出可开垦沿海滩涂>可开垦沼泽地>可开垦沙地、可复垦采矿用地>可开垦内陆滩涂、可开垦盐碱地>可开垦裸地>可开垦其他草地的特征.②可开垦沿海滩涂主要聚集在东部中纬度沿海地区,可开垦沼泽地和可复垦采矿用地主要集中在东部偏北部地区,可开垦沙地为西北地区.③自然因素奠定了各地类空间分布的基本格局,人口因素对各地类集聚效应具有重要影响,经济因素属于辅助因素,但对耕地后备资源可持续开发利用的影响效力正在突显.通过实证分析,得出研究结论:基尼系数和ESDA中的趋势分析等方法从地统计的视角揭示并量化了耕地后备资源结构的空间分布特征,可为解译耕地后备资源的集聚效应、制定开发利用对策提供科学依据.
      Abstract:
      The purpose of this paper is to explore the spatial agglomeration characteristics and influencing factors of cultivated land reserve resources around the class,providing theoretical basis for the development and utilization of cultivated land reserve resources,by statistical methods,including Gini coefficient and the trend analysis method.The result demonstrated that(1)the agglomeration of cultivated land reserve resource varies widely in different classes,reclaimable coastal beach>reclaimable wetland>reclaimable sand-strewn area and reclaimable mining field>reclaimable inland beach and reclaimable saline and alkaline land>reclaimable bare land>other reclaimable grass.(2)Reclaimable coastal beach mainly gathered in the mid-latitude zones along the east coasts,reclaimable wetland and mining field are located particularly in east-northeast areas and reclaimable sand-strewn area is mainly in the northwest region.(3) Natural factors lay the basic pattern of spatial distribution,demographic factors on the combined effect play role in shaping and economic factors are involved as a cofactor,but its position of great influence on cultivated land reserve resources' sustainable utilization is improving.It is concluded that spatial distribution of cultivated land reserve resources is revealed and quantized by Gini coefficient and the trend analysis method,which interpret the agglomerative characteristics and provide a scientific basis for the exploitation measures.
      作者: 阚博颖 [1] 方斌 [2] 许实 [3]
      作者单位: 南京师范大学新型城镇化与土地问题研究中心,江苏南京,210023 南京师范大学新型城镇化与土地问题研究中心,江苏南京210023;江苏省地理信息资源开发与利用协同创新中心,江苏南京210023;江苏省物质循环与污染控制重点实验室,江苏南京210023 中国土地勘测规划院,北京,100035
      年,卷(期): 2017, 40(1)
      分类号: F323.211
      在线出版日期: 2017年6月2日
      基金项目: 国家自然科学基金,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