吉林西部平原土地利用动态变化的RS-GIS集成研究

近20年来，吉林西部平原生态环境显著恶化，土地盐碱化、沙化、草地退化严重制约该区的可持续发展。以往人们很少从土地利用/覆盖（LUCC）变化的角度去分析研究生态环境问题。应用1989、2001年的TM卫星影像数据和RS-GIS集成技术进行土地利用/覆盖的动态监测，遥感影像解译，采用空间信息叠加的方法提取土地利用动态变化和土地利用类型相互转化的信息，揭示了土地利用类型两增（耕地、盐碱地）三减（草地、水体、湿地）的变化规律，讨论了驱使土地利用类型转化的原因，提出了保护利用土地资源的建议。

RS-GIS Integration Research on Land Use Dynamic Changes in Western Plain of Jilin Province

In recent 20 years, the eco-environment in western plain of Jilin Province deteriorates evidently, and sustainable development of the area has been restricted by the saltilization, desertification and degradation of the grassland. Land Use/Cover Changes(LUCC) has seldom been used to settle the problems on eco-environment before. It was applied in the paper that dynamic monitor on TM image data of different time and RS-GIS integration technology. Information on land use dynamic changes and the using styles transform were picked up throw RS image interpreting and space information superposing, which showed that two styles of infield and saline-alkali soil increased and three styles of grassland, water area and marsh decreased. Discussion is given that the impulse forces on land use styles transform, and using suggestions on land resource were put forward at last.