基于AHP和ArcGIS的北京市农业节水区划研究  

Agricultural Water-saving Zoning in Beijing Based on AHP and ArcGIS

作　　者：范海燕 朱丹阳[2] 郝仲勇 杨胜利 张娟 岳海英 

机构地区：[1]北京市水科学技术研究院,北京100048 [2]中国农业大学水利与土木工程学院,北京100083 [3]北京市非常规水资源开发利用与节水工程技术研究中心,北京100048

出　　处：《农业机械学报》2017年第3期288-293,共6页Transactions of the Chinese Society for Agricultural Machinery

基　　金：北京市科技计划项目(D151100004115004;D151100004115001)

摘　　要：在总结国内外学者农业节水分区先进经验的基础上,结合北京市农业生态节水发展实际,充分考虑自然条件、水资源状况、工程管理和社会经济状况等,构建涵盖干旱指数、地下水超采、土壤类型、节水灌溉率、农民人均收入在内的北京市农业节水分区指标体系,分析各指标空间分布规律,界定各指标的分级标准,并划定相应分区。采用层次分析法(AHP)对各指标分级赋值,利用ArcGIS软件中的叠加分析功能将图层按权重叠加,对分区重分类并相应赋值,将各影响因素的分值和权重相乘并求和得到最终的评分结果,按照评分结果将北京市划分为农业节水优先发展区、农业节水适宜发展区和农业节水鼓励发展区,根据分区结果提出相应工程节水及农艺节水措施。A model system was proposed based on the advanced experience at home and abroad, which was applied to agricultural water-saving zoning. The reality of agricultural water saving, water resources distribution, natural conditions, agricultural water management, project management level and pecuniary condition in Beijing were also included in this model system. The model system included several indices and each index was defined based on index categorization. These indices were also used to present the aridity soil type and ground water index distribution in the corresponding zoning. Meanwhile, ArcGIS was also combined based on the function of superposition analysis and analytic hierarchy process （ AHP）. The ArcGIS analysis function in each lay was defined and the weight function on each function was also defined. Through the definition, the index value on each lay and each function can be obtained. After that, the index value can be scored and classified and also multiplied with each index weight. The multiplied values were the final value result and treated as overall value which was treated as the guided line for Beijing agriculture water-saving zoning classification. Through the model system classification results, Beijing was divided into agricultural water conservation priority development area, agricultural water saving suitable development area and agricultural water saving encouraging development area. According to the model system results, the corresponding engineering measures and agronomic measures were also recommended in water-saving and can partly help the decision-maker in Beijing to optimize the agricultural water saving.

关 键 词：农业节水分区 北京市 指标体系 层次分析法 ARCGIS 

分 类 号：S275.5[农业科学—农业水土工程]