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根据高寒干旱地区环境研究的特点，研究了适合于遥感信息提取的区域环境综合分类系统，提出了利用现有成熟的图像分类和专题信息提取的技术方法，在ＧＩＳ的支持下实现了多种遥感信息与非遥感信息的复合。利用多重判据在ＧＩＳ环境下，通过基于知识的识别和修改，对初分类结果中相混淆异类进行了有效分离，达到类型纯化
According to the characteristics of environmental studies in the arid and arid regions, a comprehensive regional environmental classification system suitable for remote sensing information extraction is studied, and the existing mature techniques of image classification and thematic information extraction are proposed. With the support of GIS, various remote sensing Compounding of information and non-remote sensing information. Using multiple criteria in GIS environment, through the identification and modification based on knowledge, the initial classification results of the confusion heterogeneous were effectively separated to achieve the type of purification