基于SWAT模型的珠江流域地下水资源评价
赵良杰 , 王莹 , 周妍 , 曹建文 , 杨杨 , 王喆
地球科学 ›› 2024, Vol. 49 ›› Issue (05) : 1876 -1890.
基于SWAT模型的珠江流域地下水资源评价
Groundwater Resources Evaluation in the Pearl River Basin Based on SWAT Model
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在梳理珠江流域地下水资源评价现状及历史的基础上,讨论了SWAT分布式水文模型基本原理和基础数据库,将珠江流域划分为129个地下水子流域,充分考虑岩溶、基岩裂隙及孔隙含水介质参数敏感性的基础上,基于9个水文站2008-2016年逐月实测径流量进行参数率定和模型校准,并根据1957-2017年降雨量计算不同年份降雨保证率,分析评价珠江流域多年地下水资源量,最后开展降雨入渗系数和地下水补给模数参数反演.通过本次评价,珠江流域2010-2016年平均补给量为1 488.02亿m3,特枯年(2011)、平水年(2010)及丰水年(2016)地下水总补给量分别为719.49亿m3、1 446.82亿m3、1 781.87亿m3,其中丰水年的降雨量约为特枯年的1.7倍,地下水补给量为2.48倍,岩溶、基岩裂隙及孔隙含水介质的年均补给总量分别为529.91亿m3、445.13亿m3、512.98亿m3,通过参数反演获得年均地下水补给模数为10.83 L/s·km2,降雨入渗系数为0.246,以期为流域内地下水开发利用与治理保护提供数据支撑和科学服务.
分布式水文模型 / 地下水资源 / 珠江流域 / 水资源评价 / 参数反演 / 水文地质.
distributed hydrological model / groundwater resources / Pearl River basin / water resources evaluation / parameter inversion / hydrogeology
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中国地质调查局地质调查项目(DD20190342)
国家自然科学青年基金项目(42102296)
广东省地下水资源调查监测评价 项目(0835-210Z22803141)
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