成都平原素有“天府之国”的美誉，土地肥沃，寸土寸金，但目前全市人均耕地占有量已低于０．６８亩，远低于联合国所划定的人均耕地占有量０．８亩的警戒线，保护我们有限的耕地这种不可再生资源，保护环境，实现生态平衡，实施可持续发展战略，刻不容缓。 自２００１年５月１ Chengdu Plain is known as the “Land of Abundance” reputation, fertile land, high cost of land, but at present the city’s per capita cultivated land has been less than 0.68 acres, far below the United Nations has demarcated per capita cultivated land of 0.8 acres of alert Line, to protect our limited arable land as a non-renewable resource, protect the environment, achieve ecological balance, and implement a sustainable development strategy are urgently needed. Since May 1, 2001