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The research of groundwater flow model in Ejina Basin, Northwestern China

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Abstract

Water resources is a primary controlling factor for economical development and ecological environmental protection in the inland river basins of arid western China. Groundwater, as the important component of total water resources, plays a dominant role in the development of western China. In recent years, with the utilization ratio of surface water raised, the groundwater recharge rate has been reduced by surface water, and groundwater was exploited on a large-scale. This has led to the decline of groundwater levels and the degradation of eco-environments in the lower reaches of Heihe watershed, especially. Therefore, the study on the groundwater-level change in recent years, as well as simulating and predicting groundwater levels changes in the future is very significant to improve the ecological environment of the Heihe River Basin, coordinate the water contradiction, and allocate the water resources. The purpose of this study is to analyze the groundwater-level variations of the Ejina region basin on a large-scale, to develop and evaluate a conceptual groundwater model in Ejina Basin; according to the experimental observation data, to establish the groundwater flow model combining MODFLOW and GIS Software; simulated the regional hydrologic regime in recent 10 years and compared with various delivery scenarios from midstream; determined which one would be the best plan for maintaining and recovering the groundwater levels and increasing the area of Ejina Oasis. Finally, this paper discusses the possible vegetation changes of Ejina Basin in the future.

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Acknowledgments

Financial support for this study was given from National Natural Science Funds for Distinguished Young Scholar (1140725001)/National Natural Science Foundation of China (40671010). Cosponsored Fellowship is gratefully acknowledged. The authors also appreciate the anonymous referees for their comments towards improvement of this manuscript.

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Authors and Affiliations

  1. Cold and Arid Region Environmental and Engineering Research Institute, Chinese Academy of Sciences, 320# West Donggang Road, 730000, Lanzhou, China

    Haiyang Xi, Qi Feng, JianHua Si, Zongqiang Chang & Yonghong Su

  2. Alashan Desert Eco-Hydrology Experimental Research Station, 730000, Lanzhou, China

    Qi Feng, JianHua Si, Zongqiang Chang & Yonghong Su

  3. State Key Laboratory of Hydrosciences and Engineering, Tsinghua University, 100084, Beijing, China

    Wei Liu

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  1. Haiyang Xi
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  2. Qi Feng
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  3. Wei Liu
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  4. JianHua Si
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  5. Zongqiang Chang
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Correspondence to Haiyang Xi.

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Xi, H., Feng, Q., Liu, W. et al. The research of groundwater flow model in Ejina Basin, Northwestern China. Environ Earth Sci 60, 953–963 (2010). https://doi.org/10.1007/s12665-009-0231-1

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  • DOI: https://doi.org/10.1007/s12665-009-0231-1

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