中文摘要：

根据解释 1986 和 2002 的 LANDSAT TM/ETM 图象，陆地使用变化的 thespatial 时间的特征在 GIS 上在 16 年底期间被分析。Inaddition，由于土地，使用改变的生态系统服务的变化被跳过全球生态系统服务的方法估计。结果证明在草地，水区域和沼泽地 between1986 农田，盐碱的陆地，和戏剧的减少的区域有快速的增加并且 2002。生态系统服务的年度值从 767.1 x 10 ~ 被拒绝 8 Yuan/a in1986 到 624.1 x 10 ~ 在 2002 的 8 Yuan/a，估计的年度生态系统服务值在 18.6% 衰退了(我。e。1.6% 每年) 在 1986 和 2002 之间。它显示有 sever harmtoecosystem 工作并且满足，它源于生态的环境和陆地使用的调整的恶化那个目的到当前经济的利益。

英文摘要：

According to interpreting the LANDSAT TM/ETM images of 1986 and 2002, the spatial-temporal characteristics of land use changes were analyzed during 16 years base on GIS. In addition, the change of ecosystem services due to land use change was estimated by the method of vaulting global ecosystem services. The result shows that there were rapid increases in the area of cropland, saline-alkaline land, and dramatic decreases in grassland, water area and wetland between 1986 and 2002. The annual value of the ecosystem services was declined from 767.1 ×10s Yuan/a in 1986 to 624.1 × 10s Yuan/a in 2002, the estimated annual ecosystem service value declined by 18. 6 % （i. e. 1.6% per year） between 1986 and 2002. It indicates that there had been a sever harm to ecosystem functions and services, which results from the deterioration of ecological environment and the adjustment of land use that aim to currently economic benefit.