Quantification of capillary water inflow from groundwater table into the aeration zone of the soil

Year, pages: 2011, 243 - 250

QUANTIFICATION OF CAPILLARY WATER INFLOW FROM GROUNDWATER TABLE INTO THE AERATION ZONE OF THE SOIL. During the time periods without precipitation the soil water content dynamics in lowland territories is affected only by actual evapotranspiration (Eta) and by capillary water inflow (Ik) from groundwater table (GWT). The existence of hydraulic contact between aeration zone of the soil and groundwater table is an essential condition for water inflow from GWT. Real values of soil water content (Wp) can be obtained by direct monitoring. Actual decline of soil water content ?Wp during time period without precipitation, i.e. between two rainfall events, can be then compared with the volume of water, expended on Eta. If Eta=?Wp, consumption of water by the evapotranspiration process is not compensated by capillary water inflow from GWT. When Eta>?Wp, then distinction Eta–?Wp represents Ik, i.e. value of water inflow from GWT. In this study is presented the estimation method of capillary water inflow (Ik) from GWT into the aeration zone of the soil during the time periods without precipitation. Data from soil moisture monitoring on 2 localities of Zitny Ostrov area were used. Selected localities Kalinkovska horaren and Kralovska luka represent agricultural ecosystem and ecosystem of Danubian riparian forest. This data was completed by set of values of actual evapotranspiration Eta, obtained by numerical simulation on hydrological model HYDRUS-ET.

Šútor, J., Šurda, P., Štekauerová, V. 2011. Quantification of capillary water inflow from groundwater table into the aeration zone of the soil. In Acta Hydrologica Slovaca, vol. 12, no.2, pp. 243-250. 2644-4690.

Šútor, J., Šurda, P., Štekauerová, V. (2011). Quantification of capillary water inflow from groundwater table into the aeration zone of the soil. Acta Hydrologica Slovaca, 12(2), 243-250. 2644-4690.