A land cover map compiled on the basis of Landsat TM images and geochemical data was used to establish a model that provides quantitative data for ecological and environmental evaluation.

• 通过遥感图像信息增强与提取,结合区域性化探数据的归一化变换等方法,建立了生态地球化学环境指数模型,其最终结果为区域性生态环境评价提供了定量分析数据。