THE ASSOSIATION OF CHEMICAL SOIL PROPERTIES ON EVAPOTRANSPIRATION RATE EVALUATION

Abstract

We examine the evapotranspiration (ET) process and some chemical and physical properties of soil, such as soil salinity, soil hydraulic (SH), soil texture, soil electrical (SE), and soil mineral, to explain the relationship between the atmosphere and the soil degradation processes. The result reveals that, in the two stations observed, the difference between ET and precipitation value, even though they are very close, does not have a significant correlation. The remarkable complexity of the soil resulted in a higher value on the SE, CEC and SH in station A, whereas it had a low ET value, and the opposite result occurred at station B. The mineral content of the soil in station A was dominated by Kaolinite while in station B it was dominated by Montmorilonite; however, their salinity level was low. This study provided varying content of chemical elements in the two stations observable, such as Si, Al, Ca, Fe, Ti, Na, S, Mn, Co, P, Mg, K, Cr, Re, Cu, Ni, V, Yb, and Sc, even though they have an irregular pattern. The unique find that the abundance of the rear earth element elements like Eu, Yb and Sc in station A may be due to its low ET value. This information directly related the impact of the soil properties to the ET value and reveals that radiation, air temperature, humidity, wind speed, and plant characteristics were not the only parameters to be taken into account in determining the ET rate.