CAJ | 학술논문

在室内测定并利用Hydrus软件模拟了在滴灌头埋深20 cm时黄河滩地土壤中水分的入渗及剖面分布规律。结果表明：在滴头下方10 cm处的土壤含水量明显低于在滴头附近的；在滴头上方10 cm处的土壤含水量在滴灌结束时接近0．13 cm／cm3；湿润锋纵向运移距离明显大于径向的，其中以湿润锋下径运移最快。经对比验证，本研究模拟计算结果与观测值较为吻合。
재실내측정병이용Hydrus연건모의료재적관두매심20 cm시황하탄지토양중수분적입삼급부면분포규률。결과표명：재적두하방10 cm처적토양함수량명현저우재적두부근적；재적두상방10 cm처적토양함수량재적관결속시접근0．13 cm／cm3；습윤봉종향운이거리명현대우경향적，기중이습윤봉하경운이최쾌。경대비험증，본연구모의계산결과여관측치교위문합。
The water infiltration and profile distribution in lowland soil of the Yellow River under the condition of 20-cm-deep drip irrigation were studied through indoor measurement and software Hydrus simulation .The results showed that the water content in the 10-cm-distant soil under the dripper was obviously lower than that in the soil around the dripper .The water content in the 10-cm-distant soil above the dripper after the end of drip irrigation was about 0.13 cm/cm3 .The wetting front had a significantly bigger vertical move distance than radial move distance , and its downward movement was the fastest .Through comparison and verification , the simulated results of this study were basically consistent with the observed results .