在每个子流域中通过遥测土地利用信息与水保工程资料来考虑了土地利用与覆被变化的影响。
The influence of the land use and cover change is considered from remote sensing and water and soil conservation project data.
研究目的：研制基于遥感的土地利用与覆被分类系统，为国家土地利用与覆被基础数据库建设和宏观土地资源遥感动态监测提供分类依据。
The purpose of this study is to develop a land classification system for national land use and land cover database building and macro land resources dynamic monitoring.
尽管土地利用与土地覆被两者之间存在十分密切的联系，但是它们在概念与内涵上是不完全相同的。
Land use and land cover are different in concept and meaning although they have very close relations.
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