Il valore dell'irrigazione in Italia: Una valutazione edonimetrica

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(1)CONDIZIONALITA’ EX-ANTE PER LE RISORSE IDRICHE: OPPORTUNITA’ E VINCOLI PER IL MONDO AGRICOLO. a cura di Raffaella Zucaro. INEA 2014.

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(29) . CAPITOLO 5 VALUTAZIONE E ANALISI DELLE ESTERNALITA’ DELL’USO IRRIGUO DELLE RISORSE IDRICHE (VWHUQDOLWjGHOO¶XVRLUULJXRGHOOHULVRUVHLGULFKH. . . 5.1.1. Il valore dell’esternalità ....................................................................................... 41. 5.1.2. La valutazione delle esternalità dell’irrigazione .................................................. 42. 5.1.3. Indicazioni operative ............................................................................................ 47. $QDOLVLGHLEHQHILFLHVWHUQLGHOO¶LUULJD]LRQH. . 5.2.1. Metodologia .......................................................................................................... 55. 5.2.2. L’indagine ............................................................................................................. 59. 5.2.3. Analisi dei risultati ............................................................................................... 61. 5.2.4. Alcune considerazioni conclusive ......................................................................... 65. CAPITOLO 6 IL VALORE DELL’IRRIGAZIONE IN ITALIA: UNA VALUTAZIONE EDONIMETRICA . 3UHPHVVD. . . ,OPHWRGRHGRQLPHWULFR. . . ,OPHWRGRHGRQLPHWULFRQHOODYDOXWD]LRQHGHOO¶LUULJD]LRQH. . . %DVHGDWL. . . 5LVXOWDWL. . . &RQVLGHUD]LRQLFRQFOXVLYH. CAPITOLO 7. ATTUAZIONE DELLA POLITICA DEI PREZZI DELL’ACQUA A LIVELLO EUROPEO . /DWDULIID]LRQHGHOO¶DFTXDLUULJXD. . . ,OOLYHOORGLUHFXSHURGHLFRVWL. . . 6WUXPHQWLHFRQRPLFLLQQRYDWLYLSHUODJHVWLRQHGHOOHULVRUVHLGULFKH. . 7.3.1 . Innovazione e riforma degli strumenti esistenti.................................................... 89. &RQVLGHUD]LRQLFRQFOXVLYH. . Conclusioni. 93. Allegato - Indagine sulle preferenze per l’utilizzo dell’acqua per l’irrigazione in agricoltura. 98. Bibliografia. 110. ,,,.

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(127) Tabella 6.4 Valore Agricolo Medio e colture in Italia VARIABILE PRESENZA SISTEMA IRRIGAZIONE SAU % SAU_PREGIATE % CT % SAU_IRRIGATA Sistema irriguo: a pioggia o microirrigazione Fonte di approvvigionamento: acquedotto, consorzio o altro ente con consegna a turno o a domanda MONTAGNA COLLINA Manodopera agricola (numero di persone) Addetti industria (numero di persone) Addetti servizi (numero di persone) Popolosità comune Densità (ab./kmq) Number of observs. R-squared Adjusted R-squared Akaike Info. Criter.. SEMINATIVO Coeff. t-ratio 7.612,49 33,17 7,17 0,77 46,33 6,49 14,55 1,86 14,80 2,17 514,45 1,62 389,76 -9.170,25 -5.594,53 0,66 -0,47 0,10 0,00 2,39. 1,34 -14,64 -12,62 3,54 -2,27 1,17 -0,05 8,15 810 0,93 0,93 17,19. COLTURA FRUTTETO ORTO PRATO Coeff. t-ratio Coeff. t-ratio Coeff. t-ratio 15.394 8,26 9.593 32,72 8.965,58 21,90 -66,5 -0,35 18,2296 1,33 32,62 2,31 338,9 7,01 8,3425 0,96 18,29 1,37 71,9 1,14 0,235753 0,02 -12,83 -0,81 305,4 6,01 -7,71057 -0,75 30,48 2,59 -2.078,9 -0,71 -363,622 -0,84 -1.555,93 -2,49 2.663,9 8.205,1 6.205,8 2,6 -3,3 1,0 -0,1 1,1. 1,14 1,43 2,11 1,92 -1,85 1,76 -0,52 0,63 810 0,78 0,77 20,43. -185,008 -14715,6 -4718,86 0,091662 0,196629 -0,22647 0,035848 0,261323. -0,43 28,10 -9,09 -5.126,45 -7,47 -1.761,75 0,32 0,51 0,39 -1,06 -0,75 0,46 0,82 -0,07 0,91 4,41 810 0,95 0,95 16,32. 0,05 -1,58 -1,94 0,99 -1,64 1,59 -0,87 2,44 810 0,87 0,86 17,37. Fonte: nostre elaborazione. 0ROWR LQWHUHVVDQWL VRQR DQFKH L ULVXOWDWL GHOO¶DQDOLVL VXOOH GHWHUPLQDQWL GHOO¶HIIHWWR GHOO¶LUULJD]LRQH VXOO¶LQFUHPHQWRSHUFHQWXDOHGHO9$0/¶LQFUHPHQWRLQWHUPLQLUHODWLYLqVLJQLILFDWLYDPHQWHOHJDWRD . . . FROWLYD]LRQLVSHFLDOL]]DWH RUWRLQSULPLV

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