耕地资源警情综合评价——以成都市为例  

Study on the Comprehensive Evaluation of Unsafe State of Cultivated Land in Chengdu City

作　　者：邓立[1] 廖平[1] 魏晋[2] 吴明瀚[1] 

机构地区：[1]四川省国土勘测规划研究院,四川成都610031 [2]四川农业大学经济管理学院,四川成都611130

出　　处：《安徽农业科学》2012年第34期16868-16870,16932,共4页Journal of Anhui Agricultural Sciences

基　　金：国家科技支撑计划课题(2006BAJ05A13);国家科技支撑计划课题(2007BAD89B15)

摘　　要：构建了反映市域研究范围内耕地不安全状况的警情指标体系,采用层次分析法和熵值法确定指标权重,并运用线性加权综合法对1999～2010年成都市耕地资源系统的不安全运行情况进行警情评价。通过警情分析得出结论:耕地占土地面积比例、有效灌溉面积、中低产田面积、单位耕地化肥施用量、单位耕地农药施用量是短期内缓解警情的关键因子。Through constructing a comprehensive warning index system of the unsafe conditions of cultivated land, the unsafe state of cultivat- ed land of Chengdu City during 1999 -2010 was evaluated by adopting the analytic hierarchy process and entropy method to determine the in- dex weight and applying the method of linear comprehensiye evaluation. And then, the adjustment to the endangered cultivated land of Cheng- du found that the ratio between cultivated land and soil, effective irrigation area, the area of farm with medium or lower productivity, the quan- tity of fertilization and pesticide in unit of cultivated land are key factors to relieve the endangered situation.

关 键 词：耕地资源 警情评价 成都市 

分 类 号：S28[农业科学—农业水土工程] F301.24[农业科学—农业工程]