FEFLOW软件在地下水数值模拟中的应用——以柴达木盆地香日德绿洲为例

 作为我国内陆高寒干旱地区绿洲代表的青海柴达木盆地香日德绿洲,近年来由于大规模引水灌溉,使得下游局部地区生态环境恶化。为了定量分析灌溉引水对下游生态系统的影响,利用FEFLOW软件对研究区的地下水流进行数值模拟。结果表明:现状条件下潜水排泄量为3.93亿m3;区内用于绿洲灌溉合理可行的水资源量为1亿～1.5亿m3。所建立的模型合理可行,能够进行该地区地下水位动态预报,可为研究区水资源的合理开发提供科学依据。

Application of FEFLOW in numerical simulation of groundwater——A case study: Xiangride Oasis in Qaidum Basin

Xiangride Oasis is located in cold and high altitude of Qaidum Basin. Because of using water of upper fiver with great amount for irrigation, the environment of oasis worsen had been degraded. In order to analyses the effect of water use for irrigation on ecosystem, the numerical simulation for the groundwater was carried out with FEFLOW. The results show that ; the amount of water drainage is 3.93 hundred million m^3 at present; the water supply for irrigation controlled between 1 - 1.5 hundred million m^3 would be in reason; the groundwater model can be used to forecast the groundwater table, which offers a scientific basis for the reasonable exploitation of groundwater resource in this area.