甘肃省县域粮食可持续生产能力空间分异分析  

Analysis on Spatial Difference of Grain Sustainable Production Ability in Gansu Province

作　　者：潘竟虎[1] 郑凤娟[1] 石培基[1] 

机构地区：[1]西北师范大学地理与环境科学学院,甘肃兰州730070

出　　处：《农业现代化研究》2010年第4期434-438,共5页Research of Agricultural Modernization

基　　金：国家自然科学基金项目"内陆河流域城镇体系与流域空间结构相互作用的生态经济效应研究"(编号:40971078);国家社会科学基金重点项目"基于主体功能区视角的西部民族和边疆地区国土开发格局优化研究"(编号:08AMZ003)

摘　　要：基于甘肃省87个县区的统计数据,构建粮食可持续生产能力评价指标体系,运用因子分析法对其进行综合评价和分析,并依据聚类结果划分为5种空间类型;采用耕地变化强度指数、相对粮食承载指数和探索性空间数据分析技术,定量评价了甘肃省县域粮食可持续生产能力的时空差异。结果表明:甘肃省粮食可持续生产能力的县际差异较大,强可持续生产能力型县区全部位于河西走廊干旱内陆河流域;县域粮食可持续生产能力与经济发展和农民人均收入的地域格局呈现出显著的空间差异化特征和俱乐部趋同态势。研究结果可为促进区域粮食综合生产能力提供较为科学的依据。Based on the statistical data of 87 counties in Gansu Province,the comprehensive assessment index system of grain sustainable production ability was established.Basic characters and regional differences of grain sustainable production ability in Gansu Province were comprehensively examined by using the technique of factor analysis,and five spatial types were classified according to the results.Quantitative evaluation of the temporal and spatial differences in grain sustainable production ability in Gansu Province was carried out by using cultivated land change intensity index,relative grain load index and exploratory spatial data analysis technique.Results indicated that grain sustainable production ability in Gansu Province differences in inter-county,and strong sustainable capacity-based counties are all located in arid inland river basins in the Hexi Corridor.Geographical pattern of economic development,farmers per capita income and the grain sustainable production ability show a significant spatial differentiation characteristics and club convergence trend.The purpose is to provide more scientific basis for improvement of grain comprehensive production ability.

关 键 词：粮食可持续生产能力 区域差异 ESDA 甘肃省 

分 类 号：F320[经济管理—产业经济] P208[天文地球—地图制图学与地理信息工程]