(D.lgs 152/2006 e ss.mm.ii. - D.G.R. 34/33 del 7 agosto 2012)

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Comune di Masainas (CI)

Lavori di recupero dell’approdo di “Is Solinas”

Progetto (VHFXWLYR

STUDIO DI IMPATTO AMBIENTALE

(D.lgs 152/2006 e ss.mm.ii. - D.G.R. 34/33 del 7 agosto 2012)

SOLUZIONE PROGETTUALE ALTERNATIVA

Il progettista

Ing. Michele Fanelli

Il Naturalista Dott. Paolo Salvai

Collaboratori

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Come già precedentemente illustrato, l’intervento oggetto del presente progetto è finalizzato al ripristino, alla bonifica ed alla fruizione del sito, ripristinando le condizioni di sicurezza ottimali per la tutela del territorio, delle attività di pesca e di balneazione che vengono praticate nello specchio d’acqua antistante, delle condizioni igieniche e dell’intero equilibrio dell’ecosistema.

Dal punto di vista naturalistico nel sito interessato, come riportato nelle carte del Piano di Gestione dell’area SIC, abbiamo le due seguenti tipologie:

1) BOSCAGLIE A JUNIPERUS

Aree ad estensione variabile a prevalenza di ginepro ( Juniperus oxicedru ssp macrocarpa ) e lentisco (Pistacia lentiscus) sul fronte dunale esposto ai forti venti. Fra le specie sporadica presenza di Daphne gnidium, Juniperus phoenicea ssp lycia, Asparagus stipularis (Pistacio - Juniperetum macrocarpae).

2) MACCHIA MEDITERRANEA

Aree ad estensione limitata a prevalenza di specie arbustive della macchia termofila a prevalenza di lentisco ( Pistacia lentiscus) ed associata alle specie specie alonitrofile dello stagno.

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L’intervento prevede di intervenire nel tratto attualmente utilizzato come campo boe e nell’area che fronteggia lo stesso, poiché, in tale tratto di littorale, appare necessario intervenire per garantire una protezione alle imbarcazioni, e la possibilità, per le stesse, di avvicinarsi e ormeggiare in sicurezza.

La valenza di frangi flutti dei pontili in progetto, inoltre, andrà a proteggere, lo stesso arenile, dall’azione meccanica delle onde che interessano l’arenile che, come verrà illustrato più avanti, sta subendo un sensibile arretramento.

L’intervento, pertanto, consentirà di ottenere un effetto protettivo che va a ridurre i fenomeni erosivi in essere.

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Lo studio geomorfologico, di seguito riportato, mostra l’evoluzione della linea di costa nel tempo.

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L’analisi storica dell’evoluzione della linea di riva ha mostrato, un forte arretramento tra il periodo 1977 e 2000, mentre tra il 2000 e il 2008 la situazione sembra essersi stabilizzata. Chiaramente l’intervallo di tempo trascorso tra la prima foto (1977) e quella successiva analizzata (2000) risulta essere una variabile non trascurabile, tuttavia, in generale, la dinamica della costa oggetto di intervento mostra una particolare sensibilità rispetto alla capacità erosiva del moto ondoso, oltrechè,

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Legenda

!

!

! Sabbie sopra e meso litorali con matte morte di posidonia oceanica

Fondo duro infralitorale con alghe fotofile e mosaico a posidonia

Fondo roccioso affiorante nuda

Prateria a posidonia oceanica su matte

O+

O+

O+

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