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针对干旱内陆河绿洲灌区地下水位上升及塔里木河源流区限额供水的现实条件,本文以新疆阿瓦提绿洲灌区为研究区域,通过MODFLOW建立地下水流数值模型,模拟了现状及限额供水后的预测结果,并根据灌区的实际情况提出合理的地下水开采方案,以达到有效调控地下水位的目的。此方案下地下水开采量为1.14×108m3/a,并在全区范围内合理控制地下水位,为防治土壤盐碱化、减少无效蒸发和区域水资源的优化配置提供了有益参考。
In view of the actual conditions of the rising groundwater level in the arid inland oasis irrigation area and the limited water supply in the source area of the Tarim River, this paper takes the Awati Oasis Irrigation Area in Xinjiang as the research area and establishes the numerical model of groundwater flow through MODFLOW to simulate the status quo and forecast after the quota water supply According to the actual situation in the irrigation area, a reasonable scheme of groundwater exploitation is put forward so as to achieve the purpose of effectively regulating and controlling the groundwater table. Under the scheme, the groundwater exploitation amount is 1.14 × 108m3 / a, and the groundwater level is reasonably controlled in the whole area, which provides a useful reference for preventing and controlling soil salinization, reducing ineffective evaporation and optimizing the regional water resources allocation.