甘肃金塔县土地利用变化及驱动力分析

Analysis of land use change and driving forces in Jinta county,Gansu

本文选取甘肃省酒泉市金塔县为研究区域,基于2009年和2018年金塔县统计年鉴数据,利用土地利用变化幅度及动态度模型、土地利用程度模型,分析了金塔县土地利用变化的特征及趋势;以2009-2018年的经济社会数据为依据,运用主成分分析法对金塔县土地利用变化的驱动力进行了分析。结果显示,研究期内,金塔县土地利用类型以其他土地为主;其他土地的面积变化量最大,交通用地和耕地的变化幅度较大;耕地、城镇村及工矿用地、交通用地和园地面积增加,其他类型面积减少;土地利用综合指数处于较低状态,土地开发利用程度较低;金塔县土地利用变化的第一驱动力包括经济发展、人口增长及城市化发展、农业技术发展,第二驱动力为空间扩张。

In this paper,Jinta county,Jiuquan city,Gansu province,was selected as the research area.Based on the statistical yearbook data of Jinta county in 2009 and 2018,land use amplitude and dynamic attitude model and land use degree model were used to analyze the characteristics and trends of land use change in Jinta county.In addition,based on the social and economic data from 2009 to 2018,the driving forces of land use change in Jinta county were analyzed by using principal component analysis.The results showed that the land use type of Jinta county was mainly other types of land during the study period.The area of other land changed the most,and the transportation land and cultivated land changed greatly.The area of cultivated land,urban village,industrial and mining land,transportation land and garden land increased,while the area of other types of land decreased.The comprehensive index of land use was low,and the degree of land development and utilization was low.The first driving force of land use change in Jinta county includes economic development,population growth,urbanization and agricultural technology development,and the second driving force is spatial expansion.