水利水电技术2013，Vol.44Issue(6)：101-104,4.
覆膜方式对沟灌水分入渗影响
Impact from film mulching mode on water infiltration under furrow irrigation
摘要
Abstract
Through an indoor experiment on water infiltration under furrow irrigation with various film mulching modes,the impact from the film mulching mode on the water transport and distribution under the condition of the wetting front at the same level is analyzed herein.The result shows that:(1) the sequential order of the cumulative infiltration with different mulching modes under the condition of the same infiltration time is to be:without mulching ＜ mulching of furrow slope ＜ mulching of furrow bottom ＜ mulching of furrow bottom plus half of the upper slop ; (2) during the initial infiltration,sequential order of the transport rate of the vertical wetting front is the same with that of the cumulative infiltration; (3) after the infiltration,the contour lines of the soil water contents for various mulching modes are approximately semi-circled,moreover,the distributions of the contour lines of the soil water contents for both the mode of without mulching and the mode of mulching of furrow slope are obviously dense than those for the other modes with distinct decrease of the soil water content.On the whole,this study can lay a theoretical basis for the determination of the reasonable mode of furrow irrigation.关键词
覆膜方式/沟灌/水分入渗Key words
film mulching mode/ furrow irrigation/ water infiltration分类
农业工程引用本文复制引用
程东娟,霍自民,刘淑桥..覆膜方式对沟灌水分入渗影响[J].水利水电技术,2013,44(6):101-104,4.基金项目
河北省自然科学基金资助项目(C2011402042) （C2011402042）
河北省教育厅自然科学青年基金(2011161,2011247). （2011161,2011247）
