---

作 者 ：李华蕾,肖笃宁,王秋兵,郭明,马明国

期 刊 ：生态学报 2004年 24卷 9期 页码：1878~1883

关键词：景观变化；驱动因子；可持续利用；武威；

Keywords:landscape changes, driving factors, sustainable use, Wuwei oasis,

摘 要 ：应用 GIS和 RS技术 ,运用 FRAGSTATS格局分析软件 ,从景观破碎度、分维数和分离度等综合分析了河西走廊武威绿洲的景观格局十多年的变化情况。并通过建立景观类型转移矩阵和转换图 ,详细描述了各类型间的转化情况。武威绿洲各项格局指数的变化都可表明人类影响不断加大 ,发生变化最大的在绿洲边缘地带。从人类活动和水资源的变化找到绿洲景观变化的驱动因子 ,并提出了可持续利用的对策。

Abstract:Wuwei oasis is a typical agricultural oasis in Gansu province, there are 10×10~4 hm~2 farmland and 1 Million population. The oasis development keeps stability in long history. With human disturbance activities become more and more obvious in recently 20 years, Landscape spatial pattern change rapidly. Based on GIS and Remote Sensing, the paper analyzed landscape changes of Wuwei oasis from 1986 to 2000 and its driving force. The irrigated farmland increased 6295 hm~2, mainly changed from bare land and deser...

---