| 1. | Discussion on a new model of water flow in soils 一种新形式土壤水分运动模型的讨论 |
| 2. | Review of effect of temperature on soil water movement 温度对土壤水分运动影响的研究进展 |
| 3. | The percentage of preferential flow flux over the total infiltrated water can reach 2 . 40 % ~ 48 . 72 % 优先流水分通量最大可达剖面渗流水分通量的17200倍,会在很大程度上增加土壤水分运动通量。 |
| 4. | 2 . by using the experimental device of soil moisture movement of single water storage pit and suction gauge , irrigation experiment of single water storage pit are conducted 2 .利用蓄水单坑土壤水分运动试验装置结合负压计进行蓄水单坑灌水试验。 |
| 5. | They decrease soil bulk density , increase soil porosity and soil saturated water content . the result of straw mulch is best , plastic mulch is better . the movement of soil water in gneiss area of tai - hang mountain has following regulation 其中以秸秆覆盖的效果最好,其次为地膜覆盖;太行山片麻岩区土壤水分运动有如下规律,土壤含水量随土壤深度的增加而逐渐降低。 |
| 6. | 5 . to describe soil water movement with fractal model . the effect of soil pore radius and pore connectivity on soil water movement was studied . in addition of pore connectivity , the prediction of unsaturated hydraulic conductivity is more improved in low water content 将新的土壤结构分形维数应用于对土壤水分运动参数的描述,使饱和导水率和非饱和导水率预测的准确性有了很大程度地提高。 |
| 7. | In this paper , numerical simulation and experimental research on the soil moisture movement of water storage pit irrigation are conducted . at the same time , the technical parameter of water storage pit irrigation are discussed preliminarily . the research method and content include : 1 本论文对蓄水坑灌法的土壤水分运动进行了数值模拟和试验研究,并对蓄水坑灌法的技术要素进行了初步的探讨。研究的方法和内容主要有: 1 |
| 8. | A experiment on the water movement rule of the soil had been done before the field experiment , and then four irrigation regimes were placed in it , that is to say , three sub - irrigated areas hi contrast to a general irrigated area 在大田试验前,做了渗灌土壤水分运动规律试验,然后,在大田试验中设置了四个处理,即:三个水平渗灌区和一个漫灌区对照。结果表明: ( 1 )渗灌区的实际灌水量比漫灌区下降了58 . 15 81 . 63 。 |
| 9. | Based on rainfall and evaporation amount , the change of soil water could be divided into three main periods , such as decreasing of soil water storage in spring , alternatively decreasing and increasing in summer and autumn , and relatively stable in winter 根陈洪松博士学位论文:黄土区坡地土壤水分运动与转化试验研究据年内降雨和水面蒸发量的相对大小,可将土壤水分的变化分为三个主要时期:春季失墒期、夏秋增失交替期和冬季相对稳定期。 |
| 10. | It showed that the simulated value are in accordance with the experimental value by contrast of them . it indicates that the numerical modeling can reflect the status of soil moisture movement under the condition of water storage pit irrigation , and its method of solution is feasible 3 .将计算结果与实测结果进行对比,可以看出两者有较好的一致性。说明所建立的数学模型能够反映蓄水坑灌条件下的土壤水分运动状况,其数值求解方法也是可行的。 |