地中蒸渗计降雨入渗资料的处理

根据地中蒸渗计固定潜水水位的特殊结构，分析了在降雨入渗补给方面与自然潜水之间存在的差异以及用其监测降雨入渗补给的误差，在充分考虑降雨入渗补给物理机制的条件下，提出了运用非饱和带重力蓄水库容调节、土壤复蓄计算对地中蒸渗计降雨入渗资料的处理方法：即Pr-形-Pr方法。该方法结构简单，概念清楚，通过对太谷均衡实验站地中蒸渗计资料处理、计算，结果表明：运用该方法对地中蒸渗计资料进行处理符合自然实际情况。Pr-形—Pr方法实现了地中蒸渗计降雨入渗资料向自然实际降雨入渗补给量计算的转变，弥补了地中蒸渗计监测降雨入渗补给的缺陷，使地中蒸渗计的实验数据更加接近自然。

Processing on the Data of the Subsurface Evaporation-filtration Experimental System

According to the special structure of the unconfined water in the subsurface evaporation-filtration ex-perimental system,the difference between the precipitation filtrate recharging to groundwater and the natural unconfined water as well as its error in the precipitation filtrate recharging monitoring is analyzed.Based on the mechanism of precipitation filtrate recharging,a treating way for using the gravity water storage volume regulat-ing in the unsaturated zone and the calculation of soil re-storage to the data on the subsurface evaporation-filtration experimental system has been proposed.That is the method of P ' r - W-P r ,which is simple in structure and fine in concept.Tried with data from Taigu Water Balance Experimental Field,it shows that the way is fit to the natural conditions.The method of P ' r - W-P r can realize the transform of the data from the subsurface evaporation-filtration experimental system to the natural precipitation filtrate recharge calculation.It can also mend up the shortage of its monitoring to the recharge.It leads experimental data close to the natural ones.