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用GMS软件建立了河北石津灌区的地下水位模型,并采用不同的渠系水利用系数模拟渠道衬砌分别对纯井灌区和井渠结合灌区地下水位的影响.结果表明:地下水位高程的变化与渠系水利用系数线性相关,纯井灌区渠系水利用系数对地下水位的影响比井渠结合灌区的影响相对较小。当渠系水利用系数提高到一定程度时,纯井灌区与井渠结合灌区的地下水水位的变化均随渠系水利用系数的提高而下降。
The GMS software was used to establish the groundwater table of Hebei Shijin Irrigation District and the effects of canal lining on the groundwater table in well-well irrigation combined with well-canal irrigation were simulated by different canal water use coefficients.The results showed that the variation of groundwater level elevation and canal The coefficient of water utilization is linearly related. The effect of water utilization coefficient of canal system in pure well irrigation area on groundwater level is relatively less than that of well irrigation combined with irrigation area. When the canal water use coefficient increased to a certain extent, the change of groundwater level in purely well irrigated area and well-well irrigated area decreased with the improvement of drainage coefficient of canal system.