江汉大学学报（自然科学版）

在耕地分区的基础上明确其利用的重点和方向,是优化区域耕地资源利用的必要工作。以崇阳县为研究区域,基于耕地产能核算成果,引入景观格局分析和规模优势指数法,从耕地产能潜力、空间分布格局和农业生产效率3个角度,构建了耕地利用分区指标体系;并运用加权系统聚类法对崇阳县的耕地进行了分区,分析了各分区耕地的利用现状与发展方向。结果表明,崇阳县各乡镇的耕地利用差异明显,地形是造成其分异的主控因素;崇阳县耕地利用可划为3个类型区,其中:集约利用区应加强耕地的集约和规模利用;优化提升区要整合资源、优化农业生产效率;协调发展区应注重优质耕地保护和生态特色农业发展。

Based on the partition of cultivated land,making clear the key point and direction of utiliza-tion,it is the necessary work of optimization of cultivated land resources utilization. Taking the Chong-yang County as studying area,based on cultivated land productivity calculation,introducing the methodsof landscape pattern analysis and scale advantage index,builds up the index system of cultivated landutilization zoning,from 3 angles which are cultivated land productivity potentiality,spatial distributionpattern and agricultural production efficiency. A weighted system of clustering method is used to dividethe cultivated land in Chongyang County,points out the present situation and the developing direction ofcultivated land in each partition. The results show that the difference of cultivated land utilization are ob-vious in each area,the terrain is the main factor for this difference. The cultivated land utilization inChongyang County can be divided into 3 types:to strengthen intensive and scale utilization in the inten-sive utilization area,to integrate resources and optimize agricultural production efficiency in the opti-mized area,to pay attention to protection of high quality cultivated land and development of ecologicalagriculture in the coordinate development area.