Song Dongmei, Xiao Duning, Zhang Zhicheng, Cao Yu, Ma Mingguo, Wang Jianhua, Wang Jian
Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China.
Ying Yong Sheng Tai Xue Bao. 2003 Apr;14(4):535-9.
Based on the technology of GIS, RS and using FRAGSTATS, studies on the landscape changes of Minqin oasis during 1987 to 2001 showed that the transitions of landscape patches were complex, and open up wasteland took place during 1994 to 1998 in the south of the oasis where the condition of water was better and desertization took place during 1998 to 2001 in the north of the oasis where the condition of water was worse. The decreasing of the Shannon's diversity index and the Shannon's evenness index and the increasing of Contagion index showed that human beings reconstructing the landscape of the oasis began stronger than before. Unreasonable land use was changed the landscape pattern, and the condition of water resource accelerated the landscape change.
基于地理信息系统（GIS）和遥感（RS）技术，并运用景观格局分析软件FRAGSTATS，对民勤绿洲1987年至2001年期间的景观变化进行研究，结果表明景观斑块的转移较为复杂，在绿洲南部水源条件较好的区域，1994年至1998年出现了开荒现象；而在绿洲北部水源条件较差的区域，1998年至2001年发生了荒漠化。香农多样性指数和香农均匀度指数降低，蔓延度指数升高，这表明人类对绿洲景观的改造力度比以往更大。不合理的土地利用改变了景观格局，水资源状况加速了景观变化。
