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Yin X.-L.,China Institute of Geo Environmental Monitoring | Feng W.,China Institute of Geo Environmental Monitoring | Wang R.-J.,China Institute of Geo Environmental Monitoring | Cai Y.-M.,Center for Hydrogeology and Environmental Geology Survey | And 2 more authors.
Acta Geoscientica Sinica | Year: 2015

The Urumqi River basin is one of the typical inland basins in arid northwestern China, and also the focus area of regional hydrogeological research. The soil salinization problem exists in the northern plain of the river basin. The evolution of the chemical composition of groundwater has important significance for deepening the study of soil salinization, rational utilization and protection of water resources. Hydrogeochemistry and environmental isotope in northern plain of the Urumqi River basin were analyzed according to the method of some tracers, such as the anions, cations, and environmental isotope, in combination with the geological background. The authors hold that there extensively exist dissolved evaporates of surface water in northern plain, which are related to the increasingly arid climate since Late Holocene (B.P. 4000 years). Three types of groundwater in the area were distinguished: present water (21~65 m in depth) from infiltration recharge of the Urumqi River, water of Late Holocene (179~259 m in depth) from the precipitation infiltration, and water of Late Pleistocene starting with the last glacial period (depth: ~353 m) also from the precipitation infiltration. ©, 2015, Science Press. All right reserved. Source

Yin X.,China Institute of Geo Environmental Monitoring | Li W.,China Institute of Geo Environmental Monitoring | Wang J.,China Institute of Geo Environmental Monitoring | Zhu J.,Xinjiang Station of Geo Environmental Monitoring | And 4 more authors.
Acta Geologica Sinica | Year: 2010

Groundwater is essential to the development of socio-economy and ecosystem maintenance in Ürümqi River Catchment. However, heavy exploitation has resulted in decrease of groundwater level, and shrinking of lake size, and change of dynamic system of underground water especially in the Chaibu basin.. So, research of underground water system and recharge relation not only provides an important basis for both understanding of underground water system in basin and reasonable application of underground water resources, but is of realistic significance for adjustment of underground water mining. Based on the geological and hydrogeolocial background and difference of recharge environments of underground water, this study defines the recharge source and discharge approach of underground water of the Chaiwobu basin using hydrochemcial and stable isotopic methods, and classifies the recharge reaches in the basin, including Dongshan, Nanshan and Xishan reaches, each of which is further subdivided into various current systems. Source

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