长江流域水资源空间分配

发布时间：2018-05-05 19:48

本文选题：水资源 + 空间分配　；参考：《测绘科学》2017年08期

【摘要】：针对当前水资源空间分配方法存在影响因素选择不全,权重设计主观性强,且难以适用于大尺度流域范围等问题,该文提出了一种面向长江流域的水资源空间分配模型。该模型选取了年均降雨量、地形坡度、地表植被覆盖和区域集水面积作为水资源分配的影响因子,利用相关性分析方法和AHP层次分析法优化了因子影响权重设计,实现了长江流域的水资源空间分配,并采用长江流域二级子流域的水资源量统计数据进行精度检验。实验结果揭示了长江流域水资源量在1km格网尺度的空间分布差异,表明了该文面向长江流域水资源空间分配模型的合理性和准确性。
[Abstract]:This paper presents a water resources spatial allocation model for the Yangtze River basin in view of the problems of incomplete selection of influencing factors, subjectivity of weight design and difficulty in applying to large-scale watershed scope in the current water resources spatial allocation method. In this model, annual rainfall, topographic slope, vegetation cover and regional water catchment area are selected as the influencing factors of water resources allocation, and the influence weight design of factors is optimized by using correlation analysis method and AHP analytic hierarchy process. The spatial distribution of water resources in the Yangtze River basin is realized, and the accuracy of the statistical data of water resources in the secondary subbasin of the Yangtze River basin is tested. The experimental results reveal the spatial distribution of water resources in the Yangtze River basin on the scale of 1km grid, and show the rationality and accuracy of the model for the spatial distribution of water resources in the Yangtze River basin.
【作者单位】：中国科学院遥感与数字地球研究所;中国科学院大学;
【基金】：国家自然科学基金青年基金项目(41301501) 高分辨率对地观测系统重大专项(00-Y30B14-9001-14/16-3,00-Y30B15-9001-14/16-1,00-Y30B14-9001-14/16-1)
【分类号】：TV213.4

【相似文献】