干旱地区农业研究Issue(4)：57-60,65,5.
对常用潜水蒸发经验模型中 E0值的探讨
Discussion on E0 value in common groundwater evaporation empirical models
摘要
Abstract
The evaporation rate of water surface (expressed with E0 ) is contained in the common empirical models of groundwater evaporation ,which can be replaced by the evaporation rate of soil surface at groundwater depth of zero . Measured data of groundwater evaporation rate ,evaporation rate of soil surface at groundwater depth of zero and evapora-tion rate of water surface were used to made a discussion on the selection of E0 value in Averiyanov equation ,Ye equation and Lei equation ,so as to improve the accuracy of calculation .Meanwhile ,the groundwater evaporation rate was com-pared under the two conditions in which E0 was the evaporation rate of water surface and the evaporation rate of soil sur-face at groundwater depth of zero ,respectively .The results turned to be that ,in the light of clay loam in Xinjiang ,some calculation error would be caused if the evaporation rate of soil surface at groundwater depth of zero were used instead of the evaporation rate of water surface as for the above three equations .So it was suggested that the evaporation rate of wa-ter surface be used as E0 ,and an exponential function relationship between ηand groundwater table was obtained .The study results may provide references for the selection of E0 in the empirical models of phreatic evaporation ,and offer a new method for calculating the parameter ηin Lei equation .关键词
潜水蒸发/经验模型/水面蒸发/土面蒸发Key words
groundwater evaporation/empirical model/evaporation of water surface/evaporation of soil surface分类
农业科技引用本文复制引用
邢旭光,史文娟,王全九..对常用潜水蒸发经验模型中 E0值的探讨[J].干旱地区农业研究,2013,(4):57-60,65,5.基金项目
国家重点基础研究计划（973计划）（2011CB411903）；水利部公益性行业科研专项经费项目（201301102）；新疆维吾尔自治区科技计划项目（201130103-3）；陕西省自然科学基础研究计划项目（S2012JC7610）；陕西省教育厅基金 （）
