Jiang, Ling; Qi, Yan-bin - In: Asian Agricultural Research 03 (2011) 05
By using the grey relational model, 14 indexes of ecological agricultural development in Sichuan Province from 1997 to 2008 are analyzed. According to the relational degree results, the ecological agricultural development in 12 years can be divided into three stages: the first stage is from 1997...