The infiltration supplement coefficient is both two-factor function of grassland coverage and rainfall intensities for Huangmian soil.

黄绵土入渗补给系数可描述为草地盖度和雨强的两因素函数关系。

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The data of underground water resource in the arid aeolian sand region of Ningxia is limited; the coefficient of rainfall infiltration only can be decided through observing and verifying.

宁夏中部干旱风沙区地下水资料相对较少，只能采用现场观测与验证结合的方式进行确定。

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