甘肃省县区单元城镇工矿用地经济密度区域差异及动态演变特征分析

以甘肃省83个县区为研究单元,基于泰尔指数、变异系数、空间自相关理论,在Arcgis和Geoda软件的支持下,对2001-2007年甘肃省各县区城镇工矿用地经济密度的区域差异特征及空间动态演化格局进行了初步研究。结果表明:1)甘肃省各县区城镇工矿用地经济密度呈不断上升的趋势,但各县区差异明显;2)各县区土地经济密度相对发展速度随经济的发展出现了分异;3)甘肃省土地经济密度总体差异呈波动性的上升趋势,而14个市州之间的差异在逐渐缩小,部分市州所辖县区的土地经济密度内部差异呈上升趋势,甘肃省土地经济密度差异的上升是由部分县区区内差异而引起的;4)甘肃省城镇工矿用地土地经济密度空间集聚趋势微弱,天水、兰州和庆阳地区有集聚趋势。集约节约用地、合理控制建设用地规模是建设节约型社会的必然要求,城镇工矿用地经济密度可作为土地利用总体规划中安排各县区城镇工矿建设用地的有效依据之一。

Analysis on regional disparity and dynamic evolution characteristics of land economic density for town-industry in Gansu

Regional disparity and dynamic evolution characteristics of town-industry economic density of Gansu's every county during 2001 to 2007 were analyzed based on theil index,variation index,spatial autocorrelation theory and the GIS and GEODA and taking the 83counties of Guansu province as the research units.The results show that the economic density of town-industry in Gansu was showed a rising trend but the area difference was apparent too.With the development of economic,the relative development speed of land economic density appeared different;The total difference of land economic in Gansu was fluctuating upward trend while the difference among 14 cities were dwindled.The inner difference of land economic density among some counties of partial cities appeared upward trend,the difference of town-industry land economic density of Gansu was increased by the inner difference among some of counties.The agglomeration tendency of land economic density in Gansu was weak,while that in Tianshui,Lanzhou and Qingyang showed strengthened tendency.Reasonable control of the construction landscale and intensive land use was necessary for conservation-oriented society,and the town-industry land economic density can be used as a effective basis for arranged town-industry land in overall land use planning in every county.