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当前位置: 首页 > 文章 > 粮食生产系统的能值分析——以安塞县为例 干旱地区农业研究 2004,22 (2) 174-180
Position: Home > Articles > Energy analysis of food producing system——A case study of Ansai County Agricultural Research in the Arid Areas 2004,22 (2) 174-180

粮食生产系统的能值分析——以安塞县为例

作  者：
刘新卫;陈百明;杨红
单  位：
国土资源部土地整理中心;中国科学院地理科学与资源研究所
关键词：
能值分析;粮食生产系统;安塞县
摘  要：
应用OdumH.T创立的能值理论分析了安塞县粮食生产系统后认为:该县粮食生产系统能值投入率与产出率"双低",应增加系统投入以提高产出水平;系统环境负荷率不高,不可更新环境资源破坏严重,应提高可更新环境资源利用效率、加强水土保持工作;辅助能值投入中有机能值略高于无机能值,应按适当比例增加辅助能值投入以提高系统生态经济效益;粮食产出能值中玉米、豆类所占比重高,系统结构调整应遵循生态经济原则,保持或压缩口粮作物、提高粮饲两用作物播种面积,同时发展舍养畜牧业和粮食加工业。
译  名：
Energy analysis of food producing system——A case study of Ansai County
作  者：
LIU Xin-wei~1, CHEN Bai-ming~1, YANG Hong~2(1.Institute of Geographical Sciences and Natural Resources Research,CAS, Beijing 100101, China; 2.Land Consolidation and Rehabilitaion Center, the Ministry of Land and Resources, Beijing 100035, China)
关键词：
energy analysis; food producing system; Asai County
摘  要：
This article analyzes food producing system in Asai County,by using theory of energy analysis founded by Odum H.T. The results show: the rate of both supplemental energy input and output of food producing system is rather low, and need to be increased; The environment loading rate is not high as a whole, and the unrenewable environmental resources are badly destroyed, so attentions should be paid to increasing utilization efficiency of renewable environmental resources and conserving water and soil; In the supplemental energy input, the value of organic energy is a little larger than that of inorganic energy,and it's necessary to add supplemental energy proportionately in order to enhance the eco-economic effect of the system; Corn and legume hold a high proportion in the energy output, and the regulation of food producing structure should follow eco-economic principles, i.e., maintaining or compressing planting area of grain crops, expanding corn and legume which are suitable for both food and fodder, and developing house-base stockbreeding and food processing.

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