基于大坳灌区扩建地下水环境影响评价  

Impact of Daao Irrigation area extension on groundwater environment based on new canal system

作　　者：兰盈盈[1] LAN Yingying(National and Provincial Joint Engineering Laboratory for the Hydraulic Engineering Safety and Efficient Utilization of Water Resources of Poyang Lake Basin,Nanchang Institute of Technology,Nanchang 330099,China)

机构地区：[1]南昌工程学院鄱阳湖流域水工程安全与资源高效利用国家地方联合工程实验室

出　　处：《南昌工程学院学报》2019年第6期57-61,共5页Journal of Nanchang Institute of Technology

基　　金：江西省教育厅科学技术研究项目(GJJ180922);国家自然科学基金资助项目(51669014)

摘　　要：依据大坳灌区水文地质、气象、灌溉、开采、地下水动态监测等方面的资料,在掌握灌区地下水水位动态变化机理及动态特征的基础上,建立了区域的水文地质概念模型。运用地下水数值模拟软件Groundwater Model System建立灌区地下水水流模型,对灌区地下水水位进行模拟。模拟结果表明:地下水位的计算值和实测值吻合较好,该模型可以用来对该灌区新渠系建设后的地下水位进行预测。模型预测结果为:灌区新渠投入运行多年后地下水水位大部分上升值小于0.2 m,最大上升值0.49 m,对区域地下水位总体影响不大,不会引起相应的生态环境问题。The hydrological conceptual model was built based on the mechanism and characteristic of groundwater dynamics according to the data of hydrogeology,meteorology,irrigation,extraction,groundwater and dynamic monitor,etc.The irrigation area of groundwater flow model is established using groundwater numerical simulation software Groundwater Model System to simulate groundwater level of the irrigation area.The simulation results show that the groundwater level of calculated values are in good agreement with the measured values,so this model can be used for predicting groundwater level after the construction of the new canal irrigation.The predicting results of the model are as follows:Most groundwater level rises less than 0.2 m,and the largest is the appreciation of 0.49 m after the new canal irrigation operation for many years;the overall impact of region groundwater level is not big,and it does not cause the corresponding ecological environment problems.

关 键 词：地下水数值模拟 GMS 大坳灌区地下水水位 

分 类 号：TV641.2[水利工程—水利水电工程]