增加河流生态基流的山间河谷型调蓄模式研究  

Study on the mountain valley storage mode to increase river ecological base flow to regulate model research

作　　者：张薇[1] 王文科[1] 段磊[1] 张倩[1] 

机构地区：[1]长安大学环境科学与工程学院,陕西西安710054

出　　处：《西安建筑科技大学学报（自然科学版）》2014年第6期844-847,共4页Journal of Xi'an University of Architecture & Technology(Natural Science Edition)

基　　金：国家水体污染控制与治理科技重大专项"渭河水污染防治专项技术研究与示范";课题名称:渭河关中段地下水对河流生态基流的保障研究(2009ZX07212-002-003-003)

摘　　要：利用山间河谷阶地调蓄洪水,将"灾害水"转化为"资源水"增加河流生态基流,维护河流生态健康.从可调蓄洪水量和调蓄空间两方面进行可行性分析,并开展原位试验论证山间河谷型调蓄模式的系统构成及调蓄效果.通过数值模拟计算出洪水在包气带、含水层中的储存量、以及对河流生态基流的贡献量.结果表明,原位试验期间调蓄洪水量为27 815.3 m3,其中38.8%的水量滞留在包气带中;24.9%的水量储存在含水层中;36.3%的水量排泄补给给河水,增加河流生态基流.运行MODPATH模块后发现洪水滞留180 d后开始补给河水,增加河流生态基流.The research is about how to convert ＂polluted water＂ into ＂water resource＂ by storing flood in mountain valley terrace, so as to increase river ecological base flow and maintain the ecological health of the river. The feasibility analysis of flood storage capacity and storage space, as well as the in-situ test which demonstrates the construction of mountain valley storage system and its storage effectiveness are all included in the research. Through analog calculation, the storage of flood in both aeration zone and aquifer, and the contribution to river ecological base flow are obtained. The result indicates that the storage of floodwater during the in-situ test amounts to 27 815.3 m3, of which 38.8% is in aeration zone, 24.9% in aquifer and 36.3% goes into river ecological base flow. After running MODPATH modules, the result shows that the flood starts to supply river ecological base flow 180 days after stagnation.

关 键 词：河流生态基流 引洪入渗 山间河谷型调蓄模式 数值模拟 

分 类 号：P641[天文地球—地质矿产勘探]