| Title | Evoluzione recente della qualità delle acque dei laghi profondi sudalpini (Maggiore, Lugano, Como, Iseo e Garda) in risposta alle pressioni antropiche e alle variazioni climatiche |
| Abstract | This paper presents a synthesis of the most important studies performed on the deep insubrian lakes (Maggiore, Lugano, Como, Iseo and Garda). Samples taken continuously over the last decades form the basis for a description of the trophic evolution of the lakes, inferred from concentrations of algal nutrients and dissolved oxygen. The results show an improvement in the condition of Lake Maggiore, currently approaching oligotrophy, and in that of lakes Como and Lugano, which are still nevertheless in an unacceptable eutrophic state. Lake Garda has been affected by an increase in mean P concentration since the 1970s, but it has stabilised in recent years. Also in Lake Iseo P concentration has not changed in the last twenty years, but the lake still remains in an eutrophic condition. It is noteworthy that the consequences of eutrophication are accentuated by the incomplete circulation of most of these lakes. This situation has particularly affected lake Iseo, causing permanent anoxic conditions in the water below a depth of 150 m. |
| Source | Biologia ambientale 24(1), pp. 167–177 |
| Keywords | deep lakeseutrophicationorganic pollutants |
| Journal | Biologia ambientale |
| Editor | C.I.S.B.A., Reggio Emilia, Italia |
| Year | 2010 |
| Type | Articolo in rivista |
| Authors | Mosello R., Ambrosetti W., Arisci S., et altri |
| Text | 71948 2010 deep lakes eutrophication organic pollutants Evoluzione recente della qualita delle acque dei laghi profondi sudalpini Maggiore, Lugano, Como, Iseo e Garda in risposta alle pressioni antropiche e alle variazioni climatiche Mosello R., Ambrosetti W., Arisci S., et altri Bettinetti Roberta Universita degli Studi dellInsubria, Dipartimento Scienze Chimiche Ambientali, Via Valleggio 11, 22100 Como Buzzi Fabio Ricci Diego ARPA Lombardia, Dip. Lecco, Via 1° Maggio 21/B 23848 Oggiono LC Galassi Silvana Universita Degli Studi di Milano, Dipartimento Biologia, Via Celoria 26 20133 Milano Garibaldi letizia Leoni Barbara Universita degli Studi di Milano Bicocca, Piazza della Scienza 1 20126 Milano Pagnotta Romano C.N.R. IRSA, Via Reno 1 00198 Roma Salmaso Nico Veronesi Mauro Istituto Agrario di S. Michele allAdige, Via E. Mach 1 38010 S. Michele AllAdige TN Simona Marco SUPSI, Istituto Scienze della Terra, C.P. 72, CH 6952 Canobbio Lugano Tartari Gianni C.N.R. IRSA, Localita Occhiate 20047 Brugherio MI This paper presents a synthesis of the most important studies performed on the deep insubrian lakes Maggiore, Lugano, Como, Iseo and Garda . Samples taken continuously over the last decades form the basis for a description of the trophic evolution of the lakes, inferred from concentrations of algal nutrients and dissolved oxygen. The results show an improvement in the condition of Lake Maggiore, currently approaching oligotrophy, and in that of lakes Como and Lugano, which are still nevertheless in an unacceptable eutrophic state. Lake Garda has been affected by an increase in mean P concentration since the 1970s, but it has stabilised in recent years. Also in Lake Iseo P concentration has not changed in the last twenty years, but the lake still remains in an eutrophic condition. It is noteworthy that the consequences of eutrophication are accentuated by the incomplete circulation of most of these lakes. This situation has particularly affected lake Iseo, causing permanent anoxic conditions in the water below a depth of 150 m. 24 1 Published version Articolo in rivista C.I.S.B.A. 1129 504X Biologia ambientale Biologia ambientale Biol. ambient. ARISCI SILVIA pietro.volta VOLTA PIETRO CALDERONI ALCIDE DE BERNARDI RICCARDO valter.ambrosetti AMBROSETTI VALTER aldo.marchetto MARCHETTO ALDO giuseppe.morabito MORABITO GIUSEPPE michela.rogora ROGORA MICHELA alessandro.oggioni OGGIONI ALESSANDRO rosario.mosello MOSELLO ROSARIO marinamarcella.manca MANCA MARINA MARCELLA TA.P02.014.002 Impatto dei cambiamenti globali sugli ecosistemi acquatici |
