Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Nitrogen dynamics in high elevation environments of Val Masino, Central Alps (Italy) |
| Abstract | Nitrogen dynamics in running waters and snowpack samples were investigated in the high-elevation part of the Val Masino catchment, in the Italian Alps. his area was studied and monitored since 1994 within the CON.ECO.FOR. project. Studies of the soil solution showed a complete assimilation of nitrogen in forested areas, but the atmospheric deposition trends and the evolution of nitrate in the Masino stream suggested an intermediate condition of N saturation. In 2007 the DIVALPA project started, aiming to identify the nitrate sources and the most important biogeochemical processes responsible for nitrogen loads in the stream at 1190 m asl. Median measured N-NO3 - concentrations were 16 ?eq/l in running waters, 4 ?eq/l in snow and 24 ?eq/l in rain. A PCA analysis was performed on the chemical species concentration of the running water sites and three principal axes, explaining 73 % of the total variation, were identiied. |
| Source | XIX Congresso della Società Italiana di Ecologia "Dalle vette alpine alle profondità marine", Bolzano, 15-18 Settembre 2009 |
| Keywords | DepositionsNitrateSaturationsoil solution |
| Year | 2010 |
| Type | Contributo in atti di convegno |
| Authors | Alessandro Lotti, Cristina Arese, Carlo Andrea Delconte, Laura Passatore, Raffaella Balestrini |
| Text | 309174 2010 Depositions Nitrate Saturation soil solution Nitrogen dynamics in high elevation environments of Val Masino, Central Alps Italy Alessandro Lotti, Cristina Arese, Carlo Andrea Delconte, Laura Passatore, Raffaella Balestrini CNR IRSA Istituto di Ricerca sulle Acque, Via del Mulino 19, 20047 Brugherio MB Nitrogen dynamics in running waters and snowpack samples were investigated in the high elevation part of the Val Masino catchment, in the Italian Alps. his area was studied and monitored since 1994 within the CON.ECO.FOR. project. Studies of the soil solution showed a complete assimilation of nitrogen in forested areas, but the atmospheric deposition trends and the evolution of nitrate in the Masino stream suggested an intermediate condition of N saturation. In 2007 the DIVALPA project started, aiming to identify the nitrate sources and the most important biogeochemical processes responsible for nitrogen loads in the stream at 1190 m asl. Median measured N NO3 concentrations were 16 eq/l in running waters, 4 eq/l in snow and 24 eq/l in rain. A PCA analysis was performed on the chemical species concentration of the running water sites and three principal axes, explaining 73 % of the total variation, were identiied. Analisi spazio temporali dinamiche e processi a confronto. XIX Congresso della Societa Italiana di Ecologia Dalle vette alpine alle profondita marine Societa Italiana di Ecologia 978 88 88906 56 0 2 XIX Congresso della Societa Italiana di Ecologia Dalle vette alpine alle profondita marine Bolzano 15 18 Settembre 2009 Nazionale Contributo Nitrogen dynamics in high elevation environments of Val Masino, Central Alps Italy Lotti_EURAC2010.pdf Contributo in atti di convegno raffaella.balestrini BALESTRINI RAFFAELLA |