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以半湿润季风气候区浅层半咸水盐渍化类型区的河北省曲周县水盐测报试区为对象,在对这一区域的降水、地表水、地下水和土壤水全面监测的基础上,建立了土壤水量均衡预报模型,采用集总式参数,研究了各分量及参数的确定方法及早涝指标的划分,对该区的土壤水分动态及旱涝灾情进行了预报,取得了预报值与测定值相对误差小于20%的精度。
Based on the comprehensive monitoring of precipitation, surface water, groundwater and soil water in Quzhou County, Hebei Province, aiming at the semi-salty water salinization area in semi-humid monsoon climate zone, A model for predicting soil water balance was established. By using lumped parameters, the methods for determining the components and parameters and the division of pre-flood and waterlogging indices were studied. The prediction of soil moisture and drought and flood disasters in the area were carried out. The relative error of the value is less than 20% accuracy.