流域植被缓冲带分析及其生态评价

Analysis of vegetation buffer in river basin and its ecological evaluation

在现有流域缓冲带研究的基础上,以环巢湖流域为研究区域,利用Landsat TM/ETM+卫星遥感影像数据,首先对研究区的影像进行土地利用分类,在此基础上提取各汇水区的地形特征,然后对各汇水区进行缓冲区宽度设置分析,最后对环巢湖流域的生态环境敏感性进行评价。研究成果可为环巢湖流域的土地利用规划、生态治理、环境保护和旅游资源开发等提供科学依据。

Based on the previous studies of existed basin buffer zone,the Landsat TM/ETM＋satellite remote sensing image data of the Chaohu Lake Basin were selected as the research area.Firstly,the classification of land use was carried out on the image of the study area.On this basis,the terrain features were extracted from each catchment area,and then the buffer width was set up for each catchment area.Finally,the environmental sensitivity was evaluated.The research results could provide scientific basis for land use planning,ecological management,environmental protection and tourism resources development in the Chaohu Lake Basin.