Construction and application of a coupled slope surface-subsurface flow model for forested watershed;
森林流域坡面流与壤中流耦合模型的构建与应用
The results showed that due to high annual precipitation and groundwater level near ground,subsurface flow of the farmland topsoil in Liuchahe watershed was very plentiful,but the flow volumes changed quickly with daily precipitati.
选取我国东部江淮丘陵地区典型小流域——六叉河流域为实验区,以流域主要土地利用类型——旱地土壤为研究对象,原位监测了作物整个生长期中,不同磷肥条件下,磷在旱地壤中流中水平空间差异、时间动态与土壤垂直差异上的动态迁移规律。
The calculation of subsurface flow is the key to solve the problem because it is directly associated with simulation accuracy.
半干旱半湿润地区径流预报皆有超持与超渗的产流特征,是水文预报中的难点问题,而其中壤中流的计算又是关键,直接关系到模拟的精度。
Mid-stream operation is one of the most important means of container handling system in Hong Kong.
中流作业是香港集装箱装卸作业的重要方式之一,其装卸作业设备主要为驳船四脚桅吊杆。
The erosion characteristics,sediment yield mode,runoff generation process and the percentages of the surface runoff and the subsurface runoff accounting for the total pre.
结果表明:紫色土坡面总径流主要由地表径流和壤中流两种形式组成,地表径流和壤中流在总降雨量中的比例随雨强和坡度的不同而发生变化,在相同坡度情况下,壤中流占总降雨量的比例随雨强的减小而增大,在雨强相似的条件下,壤中流占总降雨量的比例随坡度的增大而增大。
The objective of this study was to study the occurrence of subsurface runoff and the movement of.
壤中流以垂直入渗为主 ,并滞后于降雨 0 。
Concentrated fluid capacitance is a significant divice in pump system,it is very important for normal and safety operation of the system.
选取泵系统中有一定代表性的水箱为对象进行模拟试验,通过试验研究,得到了泵系统在不同工作过程时集中流容的时均特性,给出了集中流容特性随管系特性和其自身固有特性的变化规律,分析了集中流容特性变化的原因,为集中流容特性研究提供了一个范例。
Effect of pipe flow on interflow on granite slope in Three Gorges area of Yangtze River;
长江三峡花岗岩坡面管流在壤中流中的作用
Based on monitoring of runoff and sediment concentration at water lowing phase in small watershed traversed by an embankment under construction, we discover that embankment can change the original runoff route and the runoff in the watershed is mainly composed of interflow and seepage flow from the water of the low land in the upper reach.
通过在退水阶段对施工期铁路路堤所在的小流域径流和产沙的试验研究表明,由于路堤改变了原来小流域部分支沟的径流途径,使得小流域内的径流主要为壤中流和路堤上游洼地积水的渗流所组成。
Selecting river network plain in Taihu basin as experiment places,triple duplication experiments have been carried out under the artificial rainstorm conditions to evaluate the characteristics of nitrogen losses from surface flow and interflow.
选择太湖流域平原河网地区为试验地点,采用3次重复人工暴雨试验方法,研究暴雨径流过程中地表径流与壤中流氮素流失特征。