CAJ | 학술논문

为研究宽垄沟灌时灌水前后且有覆膜条件下水分在垄沟间的运移及再分布,采用对比试验方法,在大棚内模拟宽垄沟灌垄上栽培条件和灌水方案,采用中子仪进行水分观测。试验数据显示,采用垄上覆膜,灌水后垄沟水分的侧向入渗,表现出明显的侧向运移变化。垄背剖面两观测点表层,在灌水后144 h（6 d）,覆膜条件下分别达到田间持水量的80%和73%,分别比无覆膜条件高17%和5%;灌水后408 h（17 d）,覆膜条件下达到田间持水量的79%和78%,分别比无覆膜条件高19%和14%。
위연구관롱구관시관수전후차유복막조건하수분재롱구간적운이급재분포,채용대비시험방법,재대붕내모의관롱구관롱상재배조건화관수방안,채용중자의진행수분관측。시험수거현시,채용롱상복막,관수후롱구수분적측향입삼,표현출명현적측향운이변화。롱배부면량관측점표층,재관수후144 h（6 d）,복막조건하분별체도전간지수량적80%화73%,분별비무복막조건고17%화5%;관수후408 h（17 d）,복막조건하체도전간지수량적79%화78%,분별비무복막조건고19%화14%。
In order to observe the water movement and redistribution between ridge and furrow before and after irrigation under the condition of film-mulching,the comparing experiments are used here to simulate the condition of wide ridge and furrow irrigation and irrigation plan under a shed,and the neutron probes are used to observe the water content.The experimental data show that under the condition of film-mulching,there are obvious changes of lateral movement because of lateral infiltration after irrigation.The average water content of surface layer of two observation points in ridge section,at 144 hours（6 days） after irrigation,would reach to 73 and 80 percent of field moisture capacity when film mulching,being 17 and 5 percent more than bare land;and at 408 hours（17 days） after irrigation,it would reach to 78 and 79 percent of filed moisture capacity when film mulching,being 19 and 14 percent more than bare land.