In order to solve the problem of the limitations of evaluation standards in application,grey target theory was introduced to evaluate land eco-security.To eliminate the unreasonable influence of equal-weighted in traditional grey target model,index weights were introduced to improve the traditional gray target model.Then,an improved gray target model based on entropy weight was proposed and used to evaluate land eco-security of Xuzhou City.The results show that,from 2003 to 2012,integrated approaching degre...
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