驱动力机制是土地利用变化研究的核心和主要方向,而将人文要素数据匹配到土地利用单元的方法研究是探讨人文因子驱动土地利用变化机制的基础工作之一。本文在详细阐述人口和经济产值与土地利用单元匹配方法的基础上,进而以北京市丰台区为例,采用人居密度和土地经济产值密度指标,定量计算并分析了1999年丰台区人口居住和土地经济产出的空间分异特征。丰台区人居密度差异巨大,最高与最低相差近29倍;土地经济产值密度高低差异主要体现在非农业用地与农业用地之间,最高的城镇用地是最低的粮食种植用地的45倍。研究结果表明将人文要素数据匹配到土地利用单元的方法是可行的。

Driving force mechanism is thought a core direction of land use change research, and the matching method research of human factor data and land use units is regarded as one of important work bases for discussing human factors to drive land use change. Based on the immanent connection between human activities and land use units, and assisted by population resident density and land economic output value density, the matching methods of population, gross output value and land use units were detailedly expatiated. Using the data of land use, population and gross output value in 1999, the matching methods were applied in Fengtai district, and spatial differentiations of population resident density and land economic output value density of Fengtai district were analyzed. Some results are obtained.(1) The area of residential land use is 16118hm~2, with 53.16% of total land area in Fengtai district in 1999. The spatial differentiation of its population resident density is very prominent, the highest 35995 persons and the lowest 1260 persons in a hectare.(2) The land use area with economic output is 23435.26hm~2, with 77.29% of total land area in Tengtai district in 1999. The spatial differentiation of its land economic output value density mainly showed between non-agricultural land and agricultural land, and the density of the highest urban and town land is as 45 times as that of food cultivated land.(3) The matching method expatiated will be an effective tool and can be used to solve the link problem of human and nature factors. Further, it will promote the progress of geographic integrated research.