Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Applicazione di un modello dinamico ad alcuni corsi d'acqua nell'Italia nord-occidentale per valutare la risposta alle variazioni negli apporti atmosferici di zolfo e azoto |
| Abstract | The chemistry of three rivers in northern-western Italy (River Cannobino, a tributary of Lake Maggiore, and Rivers Pellino and Pellesino, tributaries of Lake Orta) has been investigated since the 1980s. Deposition of nitrogen compounds in the study area is remarkably high (25-30 kg ha-1 y-1 as sum of ammonium and nitrate) and has been approximately constant in the last 15-20 years. As a consequence of atmospheric load, nitrate concentrations in river water sharply increased in the same period, showing signs of nitrogen saturation of soils in the catchments. The dynamic model MAGIC has been applied to the study sites to detect the response of surface water to different scenarios of atmospheric deposition. Results show how the status of nitrogen saturation will lead in the next future to a further increase of nitrate concentrations in rivers. Only a sharp reduction of the atmospheric emission of nitrogen compounds, and consequently of ammonium and nitrate deposition in the next years, could allow a reversing of nitrate trend in surface waters |
| Source | Studi trentini di scienze naturali. Acta biologica 80, pp. 113–117 |
| Keywords | nitrogentrendsriverschemistrynorthern-western Italy |
| Journal | Studi trentini di scienze naturali. Acta biologica |
| Editor | Museo tridentino di scienze naturali, Trento, Italia |
| Year | 2003 |
| Type | Articolo in rivista |
| Authors | Michela ROGORA, Rosario MOSELLO, Aldo MARCHETTO |
| Text | 264398 2003 nitrogen trends rivers chemistry northern western Italy Applicazione di un modello dinamico ad alcuni corsi d acqua nell Italia nord occidentale per valutare la risposta alle variazioni negli apporti atmosferici di zolfo e azoto Michela ROGORA, Rosario MOSELLO, Aldo MARCHETTO CNR Istituto per lo Studio degli Ecosistemi The chemistry of three rivers in northern western Italy River Cannobino, a tributary of Lake Maggiore, and Rivers Pellino and Pellesino, tributaries of Lake Orta has been investigated since the 1980s. Deposition of nitrogen compounds in the study area is remarkably high 25 30 kg ha 1 y 1 as sum of ammonium and nitrate and has been approximately constant in the last 15 20 years. As a consequence of atmospheric load, nitrate concentrations in river water sharply increased in the same period, showing signs of nitrogen saturation of soils in the catchments. The dynamic model MAGIC has been applied to the study sites to detect the response of surface water to different scenarios of atmospheric deposition. Results show how the status of nitrogen saturation will lead in the next future to a further increase of nitrate concentrations in rivers. Only a sharp reduction of the atmospheric emission of nitrogen compounds, and consequently of ammonium and nitrate deposition in the next years, could allow a reversing of nitrate trend in surface waters 80 Applicazione di un modello dinamico 20_actaBIO_rogora.pdf Articolo in rivista Museo tridentino di scienze naturali 0392 0542 Studi trentini di scienze naturali. Acta biologica Studi trentini di scienze naturali. Acta biologica Studi trentini sci. nat., Acta biol. Studi trentini di scienze naturali. Acta biologica. rosario.mosello MOSELLO ROSARIO aldo.marchetto MARCHETTO ALDO michela.rogora ROGORA MICHELA |