文献类型：会议论文

英文题名：An Analysis on Development Dominance Ratio of Agricultural Resources in Gansu Province Based on GIS

作者：Zheng Haixia[1];Chen Lin[1];Lan Changxian[1]

第一作者：Zheng Haixia

通讯作者：Zheng, HX[1]

机构：[1]Beijing Union Univ, Coll Management, Beijing, Peoples R China

第一机构：北京联合大学管理学院

通讯机构：[1]corresponding author), Beijing Union Univ, Coll Management, Beijing, Peoples R China.|[1141755]北京联合大学管理学院;[11417]北京联合大学;

会议论文集：5th International Conference on Cooperation and Promotion of Information Resources in Science and Technology

会议日期：NOV 27-29, 2010

会议地点：Beijing, PEOPLES R CHINA

语种：英文

外文关键词：Agricultural Resources; Development Dominance Ratio; GIS; Gansu Province

摘要：The efficient utilization of agricultural resources is the key issue of food security. The sequencing of dominance ratio of agricultural resources provides reference for its effective development. This paper brings forth the concept and a model of development dominance ratio (DDR) of agricultural resources on the base of the development potential and utilization efficiency of agricultural resources. Also, this paper, taking Gansu province as an example, analyses the DDR sequence of agricultural resources in Gansu province. It indicates that this model exactly simulates the current situation and regional differences of the DDR of agricultural resources in Gansu. As a comprehensive index of DDR of agricultural resources, DDR of arable land resources ranks in level 4-5 at rain-fed agricultural areas like Longnan, Longdong & Longzhong and light-abundant regions like Gan'nanzhou. Since its arable land production capacity gets well-developed, the DDR of agricultural resources of Hexi oasis irrigated agricultural area is about level 1-2. However, the DDR of agricultural resources at the two areas, namely MinQin and Jinchang, is in the middle, level 3.