江西省耕地后备资源潜力分布及开发组合序列分析

ANALYSY ON RESERVE CULTIVATED LAND RESOURCES POTENTIAL DISTRIBUTIONAND ASSEMBLAGE SEQUENCE OF JIANGXI PROVINCE

关键词:  耕地后备资源 潜力分布 开发组合序列 两维图论聚类 江西省

Key words:  reserved cultivated land resources  potential distribution  the development assemblage sequence  2-d graphics cluster  Jiangxi province

摘要:

［目的］根据耕地后备资源的分布特征研究其开发组合序列是有效开发利用耕地后备资源、补充耕地的重要前提。文章利用江西省耕地后备资源调查评价成果，以县为分级单元对全省耕地后备资源进行开发潜力分级，对江西省耕地后备资源开发组合序列进行研究，从而为江西省耕地后备资源的开发顺序提供参考。［方法］利用ArcGIS空间图形分析法、DPS数据处理系统两维图论聚类等方法确定开发潜力等级以及开发序列。［结果］江西省耕地后备资源开发潜力从高到底依次分为Ⅰ级潜力区、Ⅱ级潜力区、Ⅲ级潜力区和Ⅳ级潜力区，面积分别为2.726 672万hm2、2.306 897万hm2、2.873 594万hm2、1.378 88万hm2。［结论］根据两维图论聚类法分析结果得知，江西省各县地域相似程度较高可优先开发的组合有进贤县-南昌县-余干县-鄱阳县-彭泽县； 袁州区-分宜县-上高县-渝水区-樟树市； 进贤县-南昌县-余干县-鄱阳县-都昌县和樟树市-渝水区-上高县-高安市-奉新县-安义县-永修县等。

Abstract:

The evaluation of the suitability of farming of reserved cultivated land resources is the promise of effective utilization of the reserve cultivated land resources. This paper analyzed the reasonable development assemblage sequence of reserved cultivated land resources using GIS spatial analysis technology and the DPS data processing system of two dimensional graph clustering module in each county. The results showed that the development potential of cultivated land reserve resources in Jiangxi province was divided into level I, level II, level III, level IV, and the areas were 27266.74ha, 23068.97ha, 28735.94ha, and 13788.8ha respectively. According to the result of two dimensional graph theory clustering analysis, Jiangxi province should give priority to develop the high similarity degree region, i.e., Jinxian county-Nanchang county-Yugan county-Poyang county-Pengze county；Yuanzhou district-Fenyi county-Shanggao county-Yushui district-Zhangshu city；Jinxian county-Nanchang county-Yugan county-Poyang county-Duchang county and Zhangshu city-Yushui district-Shanggao county-Gaoan city-Fengxin county-Anyi county-Yongxiu county.