Measuring potential food productivity for different areas in Songnen Plain based on analytic hierarc

• 作 者: YAO Zuo-fang LIU Xing-tu YANG
• 机 构: Northeast Institute of Geography and Agroecology,Graduate University,Institute of Geographic Science
• 出 处: 生态经济（英文版）
• 发表日期: 2004年期
• 关键词: Analytic hierarchy process Accumulation factor Food productivity potential

The improved analytic hierachy process method was utilized in this paper,and a variety of factors influencing the food production were classified into several interrelated orderly objectives layers; based on the works above this paper made an scientific assessment on the influencing factors of food production and production potential of the vrious regions in the Songnen Plain.The weights and composite indices were calculated with the method of solving weight by AHPs accumulation factor sequence evaluating data,and were processed by single-level sorting and general sorting.The result showed that,the region of Changchun had the biggest potential for improving food production,but smallest for Heihe region.The key reason for the food production discrepancy of a variety of regions in Songnen Plain is the differences in scale of production and climatic conditions,the weight coefficients of which are 0.3654 and 0.2742; however,the weight coefficients of agricultural science and technology investment is very low just 0.1703 which should be increasted in the future.