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区域水平衡分析是保证水资源可持续利用和经济可持续发展的基础。在介绍CPSP模型计算原理的基础上,选择该模型作为北京市大兴区的区域水平衡分析工具。利用《北京市大兴区水资源综合规划》(2004年)中径流量的计算成果、遥感ET及地下水实测数据对模型进行校验结果表明,模型径流计算结果与规划成果基本一致,模型能较好模拟腾发及地下水储量动态变化过程。现状分析表明:2004年缺水0.72亿m3,2005年缺水1.80亿m3。
Regional water balance analysis is to ensure the sustainable use of water resources and economic sustainable development foundation. On the basis of introducing the calculation principle of CPSP model, this model is selected as a regional water balance analysis tool in Daxing District of Beijing. Using the calculation results of middling flow in the Comprehensive Planning of Water Resources in Beijing Daxing District (2004), the results of remote sensing ET and groundwater measurement data show that the model runoff results are in good agreement with the planning results and the model can be better Simulate the process of ebb and flow of groundwater. Analysis of the status quo shows that in 2004, water deficit was 72 million m3 and in 2005 it was 180 million m3.