中文摘要：

蓄水坑灌的坑壁蒸发是蓄水坑灌果园棵间蒸发的重要组成部分。用微型蒸渗仪测定坑壁蒸发量，对单坑内坑壁不同深度蒸发变化规律和不同坑深坑壁蒸发变化规律进行了试验研究。结果表明，灌溉后，蓄水坑坑壁蒸发强度随时间呈先增大后逐步减小；距地表不同深度的坑壁蒸发强度不同，随距地表距离增大而减小，但是坑深40 cm的蓄水坑变化并不明显；不同坑深同一深度处坑壁蒸发强度随时间的变化趋势一致，蒸发强度基本相等；坑深60 cm和坑深40 cm的单坑日蒸发量变化趋势一致，单坑日蒸发量随坑深增大而增大，前者坑壁累计蒸发量是后者的1.44倍。

英文摘要：

Evaporation of pit wall is an important part of ground evaporation of the orchards under the conditions of water storage pit irrigation. In this paper, the evaporation of pit wall was measured by micro-lysimeters. It studied on the change course of evaporation of the pit wall in different depths for single pit （ single pit is water storage pit of depth of 60 em or 40 cm, their pit wall of different distances from the ground） and pit wall evaporation of different pit depths. The results show that the trend of evaporation intensily of the pit wall is first increasing and then gradually de- creasing over time after irrigation ; evaporation intensity of the pit wall is also different at different pit wall depths throughout the soil surface, with the depth increasing evaporation intensity of the pit wall reducing, but the changes of water storage pit for pit depth 40 em are not obvious; The e- vaporation intensity of different pits at the same depth shows no difference over time and pit wall evaporation intensity is almost equal. Daily evapo- ration of single pit trends the same for pit depth 60 em and pit depth 40 em, daily evapora.tion of single pit increases with the pit depth, total cumu- lative evaooration（ accrued daily evaooration） of the former is 1.44 times of the latter.