SPOT图像在城市土地、人口与环境研究中的应用潜力——以北京市区为例

THE APPLICATION POTENTIALITIES OF SPOT IMAGE IN STUDY OF LAND USE,POPULATION AND ENVIRONMENT OF CITY

本文以北京市区为例。阐明了SPOT图像在城市土地、人口与环境研究中的应用潜力。笔者通过北京地区1986年3月2日的1:5万 SPOT 假彩色像片的信息量分析与其他遥感图像辨认地物的效果比较;和用于城市土地利用制图、城市人口估算的可能、分析城市土地利用与环境主要变化的研究表明:SPOT 图像比第一代资源卫星 MSS 图像具有高得多的分辨力,能够较详细反映地面实况的信息,可满足1:5万土地利用制图要求、是估算城市人口、研究城市土地利用与环境,并监测其动态变化的有效而廉价的手段,具有广阔的应用前景。

The 1:200,000 SPOT false color image of Beijing area on Mar. 2, 1986 was enlarged to 1:50,000 picture. The character and amount of information of SPOT image were studied in detail. It was compared with other remote sensing image, aerial photograph and various map data and obtained the changes of land use and environment in recent years in area of Beijing urban and suburb. The results show that SPOT image is more distinguishable than MSS image of first generation resource satellite, satisfies the requirement of land utilization mapping of which the scale is 1:50,000, and could be widely used for estimating population, land utilization and environment changes.