Naslov
Modeling water flow and nitrate dynamic on future golf course under turfgrass

Autori
Filipović, Vilim ; Ondrašek, Gabrijel ; Radka, Kodešová

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

Izvornik
SUITMA07 / Przemyslaw Charzynski ; Maciej Markiewicz, Piotr Hulisz, Marcin Switoniak, Lukasz Mendyk - Toruń : Polish Society of Soil Science, 2013, 54-54

ISBN
978-83-934096-3-1

Skup
7th International Conference of the Urban Soils Working Group, SUITMA, of the International Union of Soil Sciences

Mjesto i datum
Toruń, Poljska, 16.09.2013. - 20.09.2013

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Golf turf; Water flow; Nitrate; Modeling; HYDRUS

Sažetak
Urban environment is expanding fast in recent years, and also the area of artificially created urban soils which are developed intentionally (parks, golf courses, greenhouses) for different land use or unintentionally by development or industry (construction, mining, traffic). The number of golf courses is also rapidly expanding due to its high demand. The golf courses are mostly constructed from artificially developed layers which are placed on natural soil. The reason for that is construction of highly permeable layers which can conduct large amount of irrigation water quickly and also construction of subsurface drainage system. Golf turf is one of the most intensively managed urban landscapes regarding fertilization and irrigation practices. Large amount of nitrogen fertilizer are applied which can then pollute surface and groundwater. Numerical experiment was conducted in order to explain water flow and nitrate behavior in artificial layers and possibility of nitrate leaching into deeper natural soil layers and consequently groundwater. Experimental data form future golf course in Istria for natural soil was used and the artificial layers were constructed according to USGA recommendations. Simulations of water flow and nitrate transport were conducted with HYDRUS 1D/2D program for period of one year. UREA was used as source of nitrogen fertilizer for three scenarios i) 50 kg ha-1 ii) 75 kg ha-1 and iii) 100 kg ha-1. Results of two-dimensional simulations with tile drainage indicate that good permeable layer and drainage system set according to USGA standards can lead to protection of natural soils and prevent nitrate to percolate into the soil even at the high rate of fertilizer application. In addition experiment without drainage was conducted (HYDRUS 1D) in which a large amount of nitrate concentration reached bottom of the soil profile which can then be leached into groundwater. Because subsurface drainage is installed mostly only on golf greens and not on the entire golf course area, fertilization practices needs to be applied only on that part of landscape which is not always the case and also tile drainage outflows needs to be treated before reaching surface and ground waters.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

POVEZANOST RADA