CAJ | 학술논문

通过室内试验，研究了膜孔肥液单向交汇入渗土壤水分及NO3－－N的分布特性与运移规律。研究表明，供水入渗过程中，相同深度处膜孔中心垂向的土壤含水率大于交汇中心垂向的土壤含水率；土壤NO3－－N浓度锋运移距离和最大值随入渗时间的延长而增大。再分布过程中，土壤剖面含水量的最大值随再分布时间的延长而逐渐减小，整个湿润土体的土壤含水率随时间的延长变得相对均匀；NO3－－N浓度锋运移距离继续增大，而NO3－－N浓度最大值逐渐减小。
통과실내시험，연구료막공비액단향교회입삼토양수분급NO3－－N적분포특성여운이규률。연구표명，공수입삼과정중，상동심도처막공중심수향적토양함수솔대우교회중심수향적토양함수솔；토양NO3－－N농도봉운이거리화최대치수입삼시간적연장이증대。재분포과정중，토양부면함수량적최대치수재분포시간적연장이축점감소，정개습윤토체적토양함수솔수시간적연장변득상대균균；NO3－－N농도봉운이거리계속증대，이NO3－－N농도최대치축점감소。
Based on lab experiments ,the distribution characteristics and transport law of soil water and NO3- -N under single-line in‐terference film hole infiltration were studied .The results show that soil water content of film hole center is bigger than that of inter‐ference center at the same deep in the process of water supply .The concentration front transport distance of NO3- -N and the maxi‐mum value of NO3- -N concentration increase with increased time .In the process of redistribution ,the maximum value of soil water content decreases with increased time and soil water content of the whole wetting body becomes relatively even .The concentration front transport distance of NO3- -N increases with increased time and the maximum value of NO3- -N decreases .