摘要
通过在室内土槽中的渗灌试验,研究了节点渗灌条件下土壤中的水分运动规律,主要包括灌水过程中土壤水分的入渗过程和灌水结束后土壤水分再分布过程,即土壤水湿润锋的运移及湿润区内的土壤含水率分布状况。根据试验结果,对湿润体的形状及其动态变化、横断面及纵断面上的湿润锋的运移速度和土壤含水率的分布及其动态变化进行了描述,并且探讨了灌水量对土壤湿润状况的影响。
Through the permeation irrigation test in the indoor soil, the soil moisture movement principle under the node permeation irrigation was studied and the result included soil moisture infiltration during irrigating and soil moisture redistribution after watering mainly, namely movements of soil moist sharp point and the distribution state of soil moisture content in the moist district. The shape of the moist body and dynamic change, the moving speed of moist sharp point on the cross section and the vertical section and distribution of the soil moisture content and its dynamic change were described. And all kinds of impact on the soil moist state of water quantity were stated.
出处
《安徽农业科学》
CAS
北大核心
2005年第8期1397-1398,1404,共3页
Journal of Anhui Agricultural Sciences
基金
辽宁省博士起动基金(20021040)资助项目。
关键词
渗灌
湿润锋
土壤含水率
Permeation irrigation
Moist sharp point
Soil moisture content
