Naslov
Numerical modeling of water flow and nitrate dynamics on zero tension plate lysimeters using HYDRUS -2D

Autori
Filipović, Vilim ; Radka, Kodešová ; Dragutin, Petošić

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
HYDRUS Software Applications to Subsurface Flow and Contaminant Transport Problems / Jirka Šimunek, Radka Kodešová, Rien van Genuchten - Prag, 2013, 27-27

ISBN
978-80-213-2368-1

Skup
4th International Conference "HYDRUS Software Applications to Subsurface Flow and Contaminant Transport Problems"

Mjesto i datum
Prag, Češka Republika, 21.03.2013. - 22.03.2013

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Nije recenziran

Ključne riječi
Zero tension lysimeter; Water Flow; Nitrate Transport; HYDRUS-2D

Sažetak
Lysimeter experiments generally simulate actual field conditions and can be the closest to real field conditions. The efficiency of the zero tension plate lysimeters, which were implanted in silty-clay soils as well model (HYDRUS-2D) ability to simulate water flow and nitrate dynamics were evaluated. Low efficiency of lysimeters during the vegetation period was mostly caused by high crop water demand and possible water diversion to the sides when the groundwater table was low. The HYDRUS-2D model was able in some degree to reproduce observed outflows. Water and solute diverged from the plate towards the dryer unsaturated soil when groundwater table was low. Pressure head and nitrate concentration distributions simulated around the lysimeter plate illustrated that the lysimeter plate had a significant impact on the water regime and nitrate dynamics within the soil. This paper represent part of results which were published by Filipović et al. (2013).

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

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