Abflußentstehung in landwirtschaftlichen Nutzflächen des Teritärhügellandes/Bayern und das Exportpotential dieser Komponenten

Irdning

Bundesanstalt für alpenländische Landwirtschaft

1999

4 Abb., 4 Lit. Ang.

Artikel aus einem Buch

200107284

Bericht über die 8. Lysimetertagung "Stoffflüsse und ihre regionale Bedeutung für die Landwirtschaft", am 13. und 14. April 1999 an der HBLA Raumberg, Irdning : Stoffflüsse und ihre regionale Bedeutung für die Landwirtschaft : Solid Transport in the unsaturated zone and it's regional role for agriculture and ground water protection

Preferential flow may comprise > 20 % of infiltration. It gets only very pronounced at high and very low water contens and penetrate into loesses down to 1,0 to 1,5 m, into coarse sands and gravels down to 1,8 to more than 2,0 m below floor. Preferential flow produces in hilly areas interflow and gets quantified by means of environmental isotope methods. They may develop a significant transport potential for agrochemicals, thus producing economic losses for the farmers, contaminant impacts to surface waters during storm events and protects ground water to some extend.