地下水补给量计算及包气带岩性影响分析  

Calculations of Groundwater Recharge and Impact Analysis of Vadose Lithology

作　　者：谭秀翠[1] 王刚[1] 王华敬[1] 

机构地区：[1]山东农业大学,山东泰安271000

出　　处：《灌溉排水学报》2016年第6期76-80,共5页Journal of Irrigation and Drainage

基　　金：高等学校博士学科点专项科研基金项目(20133702120016);国家自然科学基金青年基金项目(41202174);山东农业大学青年科技创新基金项目

摘　　要：为准确计算地下水补给量并分析包气带岩性变化对补给的影响,以栾城为例,采用HYDRUS模型进行计算分析。结果表明,在包气带中,腾发作用极限深度位置的通量为地下水潜在补给量,其可以反映地下水的实际补给情况;2005—2008年,栾城地下水平均补给量为109mm,补给系数为0.13,该结果得到示踪试验结果的验证,表明HYDRUS模型计算地下水补给量比较可靠;由栾城包气带土壤岩性资料构建了6个土柱模型,由补给系数结果表明,包气带的土壤岩性变化对地下水补给未产生显著影响,而且未呈现明显的规律性。HYDRUS model was used to accurately calculate groundwater recharge and analyze lithology effect of the vadose zone,in Luancheng.The results showed that,in the vadose zone,potential groundwater recharge was the flux in maximum depth of evapotranspiration.Below this depth position,the recharge remained the same,so the potential could reflect the actual groundwater recharge.During 2005—2008,average groundwater recharge was 109 mm and recharge coefficient was 0.13 in Luancheng.The results were verified by tracer experiment.So groundwater recharge calculated by HYDRUS model was reliable.Six soil lithology models were built based on the soil data of Luancheng.The results of groundwater recharge coefficient showed that the soil lithology of vadose zone has no significant impact on groundwater recharge.It was not obvious of the regularity between groundwater recharge coefficient and soil lithology.

关 键 词：包气带水 土壤岩性 数值模拟 地下水补给 

分 类 号：P641[天文地球—地质矿产勘探]