摘要
该文论述了国外在土壤水分入渗、土壤—植物—大气连续体中水流的运动、土壤水分运动的数值模拟、土壤水分运动参数的确定和土壤水分测试技术等方面的研究进展。文中指出，进入８０年代以后，我国土壤水分的研究，在理论、方法和手段方面都逐步与国际趋同，如土壤水势理论已作为土壤水分定量化研究的理论基础，测定土壤水势的方法和仪器已日趋完善，土壤水分运动数值模拟得到了广泛应用。我国在森林土壤坡地三维渗透条件下土壤水分运动的定量化研究方面取得了较大的进展，如利用数学物理方法和计算机数值技术计算山坡林地顺坡方向和垂直方向的水量，并将所涉及的数据处理、计算和多维图形制作作为一个完整的系统编制成计算机软件。
The development of research on soil water movement overseas is firstly discussed in this paper in the following aspects: infiltration of the soil water, movement of the water in the soil plant atmosphere continuum, numeric simulation of soil water movement, determination of the parameters of the soil water movement and measurement technology of soil moisture. Secondly, it is mentioned in the article that the theories and methods of soil water research in China tended to approach to those used in other countries since the beginning of 1980′s. For example the theory of soil water potential has already been a basic theory to guide quantitative analysis of soil water; methods and instruments are being improved to measure soil water potential and numeric simulation of soil water movement was widely used in China. Lastly, rapid progress has been made in quantitative analysis of water movement of the forest siol. Math physics and digital computer technology were used to calculate the flow component in parallel slope direction and vertical direction. Moreover, a computer software has been doveloped to process data and to produce multi dimension graphs. As a result, a three dimensional infiltration model has been created to demonstrate the movement of water in field slope. All of the researches are relatively advanced in China at present.
出处
《世界林业研究》
CSCD
北大核心
1997年第5期26-32,共7页
World Forestry Research
