| 1. | Firstly , based on gis and rs , applying tm images of 1980 and 2000 , and related spatial data by using spatial analysis system of arc gis , in order to discuss the progress of land use / cover change in study areas both on space and time , moreover , analyze land use spatial dynamic change and transform secondly , applying the soc _ economical statistic data during 1980 - 2000 , to analyze the main driving forces and driving mechanism of land use change , an index system representing land use change and main driving forces is submitted
首先，在地理信息系统( gis )和遥感( rs )技术支持下，利用1980年和2000年的tm影像以及有关空间数据，采用arcgis的空间分析方法，研究县域土地利用覆盖的时空变化特征，分析各土地利用类型间相互转移情况。其次，利用1980 - 2000的社会经济统计数据，运用多元统计分析方法，在时间序列上，揭示区域耕地变化的主要驱动力和驱动机制。 |
