Because soil moisture changes often affect the soil temperature, soil temperature and moisture have a very important influence on the growth of crops. Therefore, in modern agriculture, these data are often measured simultaneously with the help of a soil moisture temperature measurement instrument. It will guide the further development of agricultural operations and achieve better agricultural production efficiency. At the same time, in order to more clearly determine the effect of temperature on soil moisture retention, related research work has also been carried out with the help of a soil moisture temperature and temperature measurement instrument. Custom car hubcap emblems can add a personalized touch to your vehicle. It could be your initials, rim cover,a favorite sports team logo, a business logo, or even a favorite quote. Custom Plastic Products,Custom Plastic Fabrication,Plastic Fabrication,Custom Plastic Molding,rim cover Kunshan Muchun Electric Co., LTD , https://www.muchunelectric.com
In general, changes in soil water temperature caused by changes in soil water quality are most pronounced in arid and semi-arid regions because the daily and seasonal temperature changes of surface soils in these areas are extremely strong. Therefore, Shaanxi Province was selected as the experimental area. In addition, four typical soils in the area were used as test soil samples, namely loessial soil, black loessial soil, soil and yellow cinnamon soil. The textures of these four types of soil were light loam, loam soil, heavy loam soil and light clay, respectively. Then, using the soil moisture temperature and temperature measurement instrument to monitor, the quantitative analysis of the temperature benefit of the soil water retention curve was carried out.
After comparing and analyzing the results of the data measured by the soil moisture temperature quick-measuring instrument, the following laws can be obtained. The temperature coefficient of the water potential that characterizes the temperature effect of the soil water potential increases with increasing soil texture and decreases with increasing water content; The temperature coefficient of water potential in wet process is greater than the corresponding value of moisture absorption process; the temperature coefficient of soil water potential in the low temperature range (5°C-20°C) is higher than that in high temperature range (20°C-50°C); the hysteresis effect of soil moisture characteristics curve decreases with increasing temperature. . This also shows that the surface tension-viscous flow theory (STVF) is suitable for describing the effect of temperature on the water potential of lighter soil textures, and the G(θ) function can be used to describe the effect of temperature on the water potential of soils containing lighter textures, and can be obtained. Satisfying result.
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