《Table 2 Available groundwater and groundwater yields in different reaches of the Yellow River》

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《流域水资源利用的极化程度研究——以黄河流域为例（英文）》

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（unit:108 m3）

The study calculates the polarization of water resources to determine the extent of overexploitation of the basin and the water resource availability needed to prevent destruction of the river basin ecosystem.The utilization of water resources from the Yellow River indicates polarization，especially in the middle and lower reaches.Therefore，this paper established a concept for describing the polarization of water resource utilization and built a model to calculate the degree of polarization of the Yellow River based on formulas 2 and 3.The results are shown in Table 3.