Semaan J. (2001).
A bio-economic model for policy analysis under water scarcity and nitrate pollution. Case study: an irrigated region of Southern Italy. Mémoire (Master of Science) : CIHEAM-IAMM, Montpellier (France). 90 p. Mention publication
Titre : | A bio-economic model for policy analysis under water scarcity and nitrate pollution. Case study: an irrigated region of Southern Italy |
Auteurs : | J. Semaan |
Type de document : | Thèse, Mémoire, Master |
Année de publication : | 2001 |
Format : | 90 p. / réf., tabl., graph. |
Note générale : | Mention publication |
Langues : | Anglais |
Langues du résumé : | Anglais ; Français |
Catégories : |
Thésaurus IAMM ITALIE ; SUD ; MODELE BIOECONOMIQUE ; POLLUTION DE L'EAU ; NITRATE ; IRRIGATION ; PRIX ; EAU ; SUBVENTION ; POLITIQUE AGRICOLECatégories principales 07 - ENVIRONNEMENT ; 7.3 - Eau. Gestion de l'Eau |
Résumé : | Many forms of environmental pollution are resulting from irrigation and intensive agriculture. In this work, a method of coupling agronomic and economic models is used to analyse the effect of different agricultural policies on nitrate pollution. The area of study is a 100 ha farm, in Southern Italy, with five field crops : wheat, sunflower, tomato, sorghum and sugar beet. Different methods, techniques and efficiency levels of irrigation were introduced. The agronomic model EPIC, was used to simulate yield and nitrate leaching. These ouputs, in addition to production costs, were used as inputs in a non-linear optimization model, written in GAMS language. The objective function was to maximize the revenue of the farmer. A multi-criteria approach was used to analyse the impacts of three possible policies on the reduction of nitrate pollution : increasing water pricing, subsidies on the management for high irrigation efficiency and application of taxes on N-fertilizers. The results of this work indicate that pollution could be reduced by about 40 percent with an associated social cost of 600 000 lires.ha-1 for water pricing, 285 000 lires.ha-1 for taxes and 170 000 lires.ha-1 for subsidies to efficiency |
Nature du diplôme : | Mémoire (Master of Science) |
Université de soutenance : | CIHEAM-IAMM |
Ville de l'université de soutenance : | Montpellier (France) |
Cote : | ITA-I73-SEM-2001 |
Exemplaires (1)
Code-barres | Cote | Support | Localisation | Section | Disponibilité |
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8168 | ITA-I73-SEM-2001 | Papier | Centre de documentation | Réserve Géographique | Disponible |