Water and Nitrate Fluxes at a Forest Site in the North Tyrolean Limestone Alps

2002

S. 31-36

4 Abb., 6 Tab., 42 Lit.

Unselbständiges Werk

200082159

The water balance for the site Mühleggerköpfl in the North Tyrolean Limestone Alps has been established to a soil depth of 50 cm. The evaporation amounts to 42 % and deep percolation is 58 % of the precipitation. The surface runoff was negligible and therefore the according nitrate fluxes as well. Soil water analysis revealed mean nitrate concentrations of 3 to 15 mg NO3 L®Ü, depending on soil depth. The nitrate concentrations at 50 cm soil depth and the associated percoaltion rates led to NO3-N outputs of 15.9 kg NO3-N ha®Ü in the year 1999 and 7.9 kg NO3-N ha®Ü in the year 2000.