Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | MODELING NUTRIENT BALANCES IN THE RIO MANNU BASIN AND SCENARIO ANALYSIS OF THE IMPACT OF FERTILIZER REDUCTION |
| Abstract | The Rio Mannu River Basin (Sardegna Island, Italy) is experiencing an intensification of agriculture, and correspondingly, irrigation areas are increasing. Like many Mediterranean areas, this basin is characterized by water shortage and diffuse pollution from agricultural sources. It is than important to design, evaluate and adopt adequate management policies to prevent further water quality impairment. The Soil and Water Assessment Tool (SWAT), a model for agricultural watersheds, was applied to simulate hydrological processes and evaluate current and future nutrient loads. An alternative scenario that assumes a reduction in fertilizer was simulated. This option was assessed by considering the effects on water balance, water quality, crop yields and economic benefits. The model was able to simulate the hydrologic cycle and water quality, notwithstanding an insufficient availability of measured data. This study suggests that a better use of fertilizers could substantially reduce the amount of nutrients flowing into surface waters, even though the effects of such a policy on crop yield and farm income are in some cases negative. |
| Source | Fresenius environmental bulletin 19(9), pp. 1854–1861 |
| Keywords | Watershed managementfuture scenariosmodelingwater qualitySWAT Model |
| Journal | Fresenius environmental bulletin |
| Editor | Parlar Scientific Publications, Freising, Germania |
| Year | 2010 |
| Type | Articolo in rivista |
| Authors | DE GIROLAMO A.M., LO PORTO A., OUESLATI O. |
| Text | 42388 2010 ISI Web of Science WOS 000283627400009 Watershed management future scenarios modeling water quality SWAT Model MODELING NUTRIENT BALANCES IN THE RIO MANNU BASIN AND SCENARIO ANALYSIS OF THE IMPACT OF FERTILIZER REDUCTION DE GIROLAMO A.M., LO PORTO A., OUESLATI O. Water Research Institute of National Research Council IRSA U.O.S. Bari The Rio Mannu River Basin Sardegna Island, Italy is experiencing an intensification of agriculture, and correspondingly, irrigation areas are increasing. Like many Mediterranean areas, this basin is characterized by water shortage and diffuse pollution from agricultural sources. It is than important to design, evaluate and adopt adequate management policies to prevent further water quality impairment. The Soil and Water Assessment Tool SWAT , a model for agricultural watersheds, was applied to simulate hydrological processes and evaluate current and future nutrient loads. An alternative scenario that assumes a reduction in fertilizer was simulated. This option was assessed by considering the effects on water balance, water quality, crop yields and economic benefits. The model was able to simulate the hydrologic cycle and water quality, notwithstanding an insufficient availability of measured data. This study suggests that a better use of fertilizers could substantially reduce the amount of nutrients flowing into surface waters, even though the effects of such a policy on crop yield and farm income are in some cases negative. 19 9 Articolo pubblicato MODELING NUTRIENT BALANCES IN THE RIO MANNU BASIN AND SCENARIO ANALYSIS OF THE IMPACT OF FERTILIZER REDUCTION pdf dell articolo pubblicato F_2009_518_MESAEP_Original_paper_pp_1854_1861.pdf Articolo in rivista Parlar Scientific Publications 1018 4619 Fresenius environmental bulletin Fresenius environmental bulletin Fresenius environ. bull. Fresenius environmental bulletin. FEB Freising. Print Fresenius environmental bulletin Print antonio.loporto LO PORTO ANTONIO annamaria.degirolamo DE GIROLAMO ANNA MARIA TA.P04.005.006 Gestione a scala di bacino delle risorse idriche e sostenibilita dell uso irriguo in agricoltura |