根据河北省衡水试验站20m2 蒸发池与E601型蒸发器同步观测结果，计算出的两种仪器的折算系数，结合朱庄水库E601型蒸发器和水库观测资料，计算出水库水面蒸发量。采用朱庄水库2000年-2010年蒸发量和水库要素资料，计算出朱庄水库多年平均蒸发量为794.38万m3，单位面积蒸发量85.60万m3/km2。朱庄水库年内最大月平均蒸发量出现在5月份，为106.30万m3；最小月平均蒸发量出现在1月份，为12.96万m3。年内变化极值比为8.20，极值差为93.34万m3。

Based on the synchronous observation results of the 20 m2 evaporation pool and E601 type evaporator at the Hengshui experiment station, the conversion coefficients of the two instruments were calculated. According to the observation data of E601 type evaporator in the Zhuzhuang reservoir, the amount of water surface evaporation in the reservoir was calculated. Based on the evaporation data and reservoir conditions from 2000 to 2010, the average annual evaporation in the Zhuzhang reservoir was calculated as 794.38×104 m3 and the evaporation per unit area was 85.60×104 m3/km2. The maximum monthly average evaporation, 106.30×104 m3, occurred in May, while the minimum monthly average evaporation, 12.96×104 m3, occurred in January. The extreme ratio of variation within a year was 8.20, and the extreme difference was 93.34×104 m3.