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1.在砂土释水过程中,首先是砂土表层水分含量发生变化,随着时间的延长,水分开始变化的层次,依次加深,达到一定时间后,其变化主要发生在中部;而表层及下层变化甚小。2.释水量及释水速度随着水位差增加而增加。3.释水速度因弱透水层的出现部位不同而有显著的变化,该层出现愈浅速度愈慢,中位及深位者虽然对释水总量影响较前者为小,但改变了砂柱的水分分布状况。4.根据初步试验结果,我们认为利用同位素研究,包括土壤释水性在内的水分运动,方法简便,灵敏度较高,便于了解土壤水分连续运动的过程,而利用普通方法将增加极大的工作量,且不易准确。
1. In the sand release process, the first is the surface water content of sand changes, with the extension of time, the water began to change levels, in turn deepened, reaching a certain time, the change occurred mainly in the middle; and the surface and The underlying change is very small. 2. The amount of water and water release rate increases with the water level increases. 3. The water release rate changes obviously due to the different parts of the aquitard. The slower the speed of the layer, the lower the median and the depth are, Column water distribution. 4. Based on the preliminary test results, we think that using isotope studies, water movement, including soil water release, is simple, sensitive and easy to understand the process of continuous soil moisture movement. However, using ordinary methods will increase the workload greatly , And not easy to accurately.