公路边坡植被恢复质量评价指标及方法研究

主要基于RS和GIS的支持,获取了重庆市主城区1 612 km2 的3期土地利用/土地覆盖变化状况,并采用2个变化时段分别对其变化进行监测.经过监测,对2个时段的变化状况进行分析比较,并对重庆主城区土地利用/土地覆盖变化的驱动力进行了分析.重庆市工业化和城镇化进程加快、人口增长、交通及其它基础设施建设等社会因素是重庆市主城区土地利用/覆盖变化变化的主要原因,另外,三峡工程蓄水对其也具有重要影响.

Evaluation Index and Method of Revegetation Quality on Highway Slope

The three years situation of land use and land cover in the 1612 km^2 downtown area of Chongqing are accessed mainly based on the RS and GIS supports. The study of three years is performed in two periods so as to monitor its change. After monitoring, the two period changes of land use and land cover are compared and the driving forces for the changes are analyzed. Accelerated industrialization and urbanization processes, population growth, transportation and infrastructure constructions, and other social factors are main reasons for the changes in the downtown area. In addition, the water storage of Three-Gorges Project also contributes to the changes.