针对“中国西部地区生态环境现状遥感调查”的需要，综合运用景观生态学理论、生态系统服务功能理论、可持续发展理论、遥感和地理信息系统技术，研究中国西部地区生态环境现状遥感数据的处理与集成，开展中国西部地区土地覆被和生态要素结构变化分析、沙漠化和水土流失强度评价、生态脆弱特征及时空分布规律分析、基于遥感调查的生态环境质量评价、基于多时相遥感数据对比的典型区生态环境遥感分析和生态环境变化成因对策分析等综合性的研究，并以量化和可视化的形式系统地反映西部地区生态环境现状及其变化的空间分布、空间统计和空间特征规律。

Aiming at the demand of Remote Sensing Investigation on Eco environment in Western China,this article synthetically utilizes the theory of Scenical Ecology,the theory of the service function of ecological system,the theory of the sustainable development and the technology of RS and GIS to study the process and integration of the RS data about eco environmental status in Western China.Based on that,the research staff develop the complex research about the constructional change of the landcover and eco elements in Western China,about the evaluation of the intensity of the desertification and water erosion,about the analysis of the ecological frail characteristic and temporal and spatial distribution law,about the evaluation of the eco environmental quality based on RS investigation and about the analysis of eco environmental RS in typical regions and the cause and countermeasure on the eco environmental change based on multi temporal RS data comparison.Furthermore,the author systematically reveals the law of the spatial distribution,spatial statistics and spatial characteristics in the form of quantitation.