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首页> 外文期刊>Canadian Agricultural Engineering >Regional estimation of recharge by a selective hydrologic model.
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Regional estimation of recharge by a selective hydrologic model.

机译：用选择性水文模型估算补给量。

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摘要

The EPIC model(Erosion/Productivity Impact Calculator) was evaluated for its capacity to estimate groundwater recharge. Simulations were carried out between 1967 and 1990 on the Portneuf River watershed (359 km2) which is located south-west of Quebec, Canada. EPIC was used on 789 homogeneous zones of the watershed. These homogeneous zones were determined by soil utilization, soil texture, slope, and groundwater depth criteria. Drainage depths to the saturated zone, simulated by EPIC, were comparedto base flows at the watershed outlet. No calibration of EPIC was necessary to estimate groundwater recharge, except for a parameter that controlled soil water evaporation. For the 24-year study period, the mean difference between measured and simulateddrainage was 4.3%. Sandy textured areas, where potato fields are located, contributed mainly to groundwater recharge.
机译：对EPIC模型（侵蚀/生产率影响计算器）进行了评估其地下水补给能力。在1967年至1990年之间对位于加拿大魁北克西南部的Portneuf河流域（359 km2）进行了模拟。 EPIC用于该流域的789个均匀区域。这些均质区是由土壤利用，土壤质地，坡度和地下水深度标准确定的。将EPIC模拟的到饱和区的排水深度与分水岭出口处的基本流量进行了比较。除控制土壤水分蒸发的参数外，无需对EPIC进行校准即可估算地下水的补给量。在24年的研究期内，实测排水量与模拟排水量的平均差为4.3％。马铃薯田所在的沙质地区主要是补给地下水。

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