乌鲁木齐河流域乌拉泊洼地地下水库调蓄功能研究

Research on the Regulation and Storage Capacity of Groundwater Reservoir in Wulabo Low Land of Urumqi River Watershed

乌鲁木齐市作为西部开发的重要首府之一,随着城市建设规模的扩大、人口的增加,其工业、农业与生活、生态用水与水资源短缺的矛盾日益突出。根据城市规划,2010年乌鲁木齐市总需水量40×104m3/d,目前供水量30×104m3/d,年缺水3650×104m3。针对区内特殊的地理、地质和水文地质特征,乌鲁木齐河中上游地表水和乌拉泊洼地地下水将成为乌鲁木齐市城市供水的主要水源。本文以乌鲁木齐河流域乌拉泊洼地为研究区,对地下水库的水源条件、储水空间及其调蓄功能进行分析,并以拟建的西山应急水源地为例,对比不同开采方案下地下水渗流场的状态变化,同时评价该水源地运行对已建的干河子水源地及乌拉泊洼地泉水溢出量的影响。从而为缓解乌鲁木齐市季节性缺水,又保证生态环境良性循环提供技术依据。

Urumqi city is one of the important county in the west development. The development of city construction and the increase of the population bring great contradiction in water using of industry, agriculture, life and eco-environment. According to city construction plan of 2010,total water demand is 40 ×10 4 m 3 /d, present total supply is 30 ×10 4 m 3 /d, so annual water shortage is 3650× 10 4 m 3 . Aiming at special geographical, geological and hydro- geological characteristic of Urumqi, surface water on the middle and upper reaches of Urumqi river and groundwater on Wulabo low-lying land will be the main water sources of Urumqi city. In this research Wulabo low land is chosen as research areas, the water sources, storage and regulation condition are analyzed, the Xishan urgent water source field is taken as aexample to compare its groundwater flow movement state change under different mining schemes. Moreover,its influences on the Ganhezi finished water source field and Wulabo low land spring flow discharge are evaluated, andthe technological support for either reducing seasonal water shortage or ensuring the better circulation of eco-environment is proposed.