Document info



In: Acta Hydrologica Slovaca, vol. 18, no. 1
Andrej Tall - Dana Pavelková

Relationship between gravimetric and volumetric water content of soil in conditions of East Slovakian Lowland

Details:

Year, pages: 2017, 80 - 85
Keywords: volumetric water content of soil, gravimetric water content of soil, pedotransfer function, volume changes of soil
Original source URL: http://www.ih.sav.sk/ah

About article:

The aim of this contribution was to study dependence between gravimetric and volumetric water content of soil which resulted into pedotransfer function. This function would facilitate the calculation of volumetric water content of soil based on more easily calculated gravimetric water content of soil. Regarding the samples, 325 undisturbed soil samples were taken from 15 different locations of East-Slovakian lowland. Further, the samples underwent grain-size analysis and 2 759 measurements of gravimetric and volumetric water contents of soil were performed. The dependence between gravimetric and volumetric water content of soil is linear in soils with low content of clay fraction. When clay content was increasing, the linearity of dependency was vanishing and it started to copy the curve. This fact was caused by the volume changes of soil emerging due to the presence of clay minerals in soil. Pedotransfer function was obtained in the form of eight polynomial functions of second degree for eight different intervals of clay fraction component (particles <0.002 mm). The degree of reliability of this function is confirmed by the value r2=0.9962 as well as the value of mean absolute error: 0.7890 %.

How to cite:

ISO 690:
Tall, A., Pavelková, D. 2017. Relationship between gravimetric and volumetric water content of soil in conditions of East Slovakian Lowland. In Acta Hydrologica Slovaca, vol. 18, no.1, pp. 80-85. 2644-6291 (printed until 2018).

APA:
Tall, A., Pavelková, D. (2017). Relationship between gravimetric and volumetric water content of soil in conditions of East Slovakian Lowland. Acta Hydrologica Slovaca, 18(1), 80-85. 2644-6291 (printed until 2018).