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Gewählte Master / Diploma Thesis:

Monika Seebacher (2008): Vergleich der Wasser- und Stoffflüsse eines Gebirgs- und eines Talstandortes anhand von Lysimeterversuchsergebnissen im Grünlandn.
Master / Diploma Thesis, BOKU-Universität für Bodenkultur, pp 99. UB BOKU obvsg FullText

Data Source: ZID Abstracts
Abstract:
In this study the soil water content, the groundwater recharge and the amount of seepage water as well as the amount of leaching losses of nutrients which are carried out with the seepage water of an typical Austrian grassland site has been compared with those of an alpin pasture, by lysimeter studies. The climate and the amounts of wet deposition were also taken into consideration. The data of both lysimeterstations in the study areas during time between January 2006 and Juni 2007 were analyzed. The lysimeterstations, are located at the HBLFA Raumberg- Gumpenstein; (altitude: 700 m a.s.l.) and on the Stoderzinken, a mountain near Gröbming, (altitude: 1830m a.s.l.). Data of the volumetric water content of both soils in different soil depths have been measured with TDR- sensors and the results were compared together. The period from March till Juni 2006 and 2007 were separately shown in an extra chart, to-gether with soil temperatures in the same soil depths, to demonstrate the seepage water flow caused by snowmelt. By collecting amounts of seepage water and comparison it with the measured precipitation amounts was the groundwater recharge on both study areas calculated. The collected seep-age water was also analyzed in the laboratory in the Department of Environmental Ecology; at the ;HBLFA Raumberg Gumpenstein;. The concentrations of potassium (K), calcium (Ca), magnesium (Mg), sodium (Na), ammonium (NH4), chloride (Cl), nitrite (NO2), nitrate (NO3), sulphate (SO4) and phosphate (PO4) were analyzed. Additionally the concentration of the TOC and DOC were measured. By this means the yearly amount of the leaching losses of nutrients could be estimated by multiply the concentration with the amount of seepage water

Beurteilende(r): Liebhard Peter

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