Comprehensive Evaluation of Regional Agricultural Water and Land Resources Carrying Capacity Based on DPSIR Concept Framework and PP Model
Comprehensive Evaluation of Regional Agricultural Water and Land Resources Carrying Capacity Based on DPSIR Concept Framework and PP Model
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DOI：
10.1007/978-3-642-27275-2_44
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发表时间：
2011-10
期刊：
影响因子：
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通讯作者：
Q. Fu;Qiuxiang Jiang;Zilong Wang
中科院分区：
文献类型：
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作者：
Q. Fu;Qiuxiang Jiang;Zilong Wang
针对目前我国农业水土资源利用中存在的问题，为实现农业水土资源的可持续利用，基于DPSIR（驱动力-压力-状态-影响-响应）概念框架，构建了农业水土资源承载力综合评价指标体系。然后以三江平原为研究区域（包括6市1县），运用投影寻踪（PP）模型对区域农业水土资源承载力进行评价。评价结果表明，耕地撂荒率、水资源利用率、城镇化率、单位面积农田化肥施用量、农田灌溉率、单位生产总值耗水量和农用地产出率7个指标是影响三江平原农业水土资源承载力的关键因素。佳木斯是三江平原的主要农业区，农业水土资源承载力最低。不过，穆棱的承载力最高。评价结果可为区域农业水土资源可持续利用提供科学指导。
Aiming at the problems existing in the current use of agricultural water and land resources in China and in order to realize sustainable use of the two resources, we established an indicator system for comprehensive evaluation of agricultural water and land resources carrying capacity based on the Driving forces-Pressures-States-Impacts-Responses (DPSIR) concept framework. Then we took Sanjiang Plain as study area (including 6 cities and 1 county) and used projection pursuit (PP) model to evaluate regional agricultural water and land resources carrying capacity. The evaluation results indicated that seven indicators, including the arable wasteland rate, water resources utilization rate, urbanization rate, chemical fertilizer application in farmland per unit area, farmland irrigation rate, production GDP per unit water consumption and agricultural land output rate, were the key factors influencing agricultural water and land resources carrying capacity in Sanjiang Plain. Jiamusi, the main agricultural region of Sanjiang Plain, has the lowest carrying capacity of agricultural water and land resources. However, Muling has the highest carrying capacity. The evaluation results could provide scientific guidance for regional agricultural water and land resources sustainable use.