基于熵权法草原生态安全评价——以甘肃牧区为例.pdf

Chin s Journal of Ecology 2006, 25( 8) : 1003~ 1008 * 1* * 2 1 3 1 贾艳红 赵 军 南忠仁 赵传燕 王胜利 ( 1 兰州大学资源环境学院, 兰州730000; 2 西北师范大学地理与环境科学学院, 兰州730070; 3 中国科学院寒区旱区环境与工程研究所, 兰州730000) , , , , , , , , , , , , , X826 A 1000- 4890( 2006) 08- 1003- 06 Ecological safety assessment of grassland based on entropyright method: A case study of Gansu pastoral 1 2 1 3 1 1 area. JIA Y anhong , ZHAO Jun , NA N Zhongr n , ZHAO Chuanyan , WA NG Sh ngli ( Institute of Re 2 source and Env ironment, Lanzhou University, Lanzhou 730000, China; College of Geograp hy and En 3 vironment Science, orthwest ormal University, Lanzhou 730070, China; Cold and Arid Regions En vironment and Engineering Research Institute, China Academy of Sciences, Lanzhou 730000, China) . ChineseJournal of Ecology, 2006, 25( 8) : 1003~ 1008. Und r th guidanc of pr ssur stat r spons mod l, a conc ptiv mod l of cological saf ty ass ssm nt, and by th combinat ion of ntropyright and compr h nsiv appraisal m thods, this pap r mad an ass ssm nt on th grassland cological saf ty of Gansu pastoral ar a. T h r sults of t his ass ssm nt w r in good corr spond nc to th r gional actual situations, indicating that ntropyright m thod w as applicabl in this fi ld. Using ntropyright m t hod to d t rmin th w ights of ass ssm nt indic s could r solv th probl m of many indic s not having uniqu