干旱地区农业研究Issue(2)：191-195,5.
基于 Hydrus -1D 模型的大安灌区旱田灌溉入渗补给研究
Study on recharge from dry farmland irrigation based on the Hydrus -1D model in Da’an irrigation district
摘要
Abstract
Based on field investigations and data collection ,the process of groundwater recharge under irrigation in the dry farmland (maize field) in Da’an Irrigation District in Jilin Province was analyzed using the Hydrus -1D model . The result shows that evapotranspiration dynamic change is evident during the simulation ,transpiration is about 2 .18 times of evaporation ,soil water transpiration loss accounts for about 79 .74% of the evapotranspiration consumption in maize growth period ,the preponderance is transpiration among evapotranspiration in crop growth season ,other time is e-vaporation ;many precipitation and irrigation water infiltrates into soil water under irrigation in the dry farmland ,soil wa-ter and groundwater transforms quite frequently ,water quantity exchange is bidirectional and dynamic ,the total ground-water recharge is about 33 .63 mm during the simulation ,infiltration ratio is 5 .21% .the amount is relevant to fine aera-tion zone medium of study area .This research may offer scientific evidence to schedule reasonable irrigation scheme in dry farmland further .关键词
大安灌区/Hydrus -1D 模型/旱田灌溉/入渗补给Key words
Da’an Irrigation District/Hydrus -1D model/Dry farmland irrigation/Recharge分类
农业科技引用本文复制引用
卞建民,李育松,胡昱欣,李宏亮..基于 Hydrus -1D 模型的大安灌区旱田灌溉入渗补给研究[J].干旱地区农业研究,2014,(2):191-195,5.基金项目
国家自然科学基金项目（41072255）；吉林省自然科学基金项目 （）
