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Lake Valle

Coordinates: 46°07′24″N 11°12′59″E / 46.12333°N 11.21639°E / 46.12333; 11.21639
From Wikipedia, the free encyclopedia
Lake Valle
A body of water surrounded by greenery.
A topographical map showing the location of Lake Valle in the Province of Trento, Italy.
A topographical map showing the location of Lake Valle in the Province of Trento, Italy.
Lake Valle
Location of Lake Valle
A topographical map showing the location of Lake Valle in the Province of Trento, Italy.
A topographical map showing the location of Lake Valle in the Province of Trento, Italy.
Lake Valle
Lake Valle (Italy)
LocationFornace, Province of Trento, Trentino-Alto Adige, Italy
Coordinates46°07′24″N 11°12′59″E / 46.12333°N 11.21639°E / 46.12333; 11.21639
TypeGlacial, alluvial dam
Primary inflowsRio Saro, Rio Santo Stefano, Rio Arfontane
Primary outflowsRio Lago di Valle
Basin countriesItaly

The Lake Valle (also known as "Lake Castelet".[1] or "Lake Fornace"[2]) is a lake in the Province of Trento, located in the municipality of Fornace and part of the drainage basin of the Fersina [it] stream[3]

Description

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The lake partially frozen in winter

Lake Valle is an alluvial-dammed lake of glacial origin,[4] elongated in shape with mostly steep shores,[3] located on the western slope at the foot of the San Mauro hill.[2] It is fed by the Rio Saro (or Rivo dei Sari or Rivo Riva), the Rio Santo Stefano (or Rivo Albiano), and the Rio Arfontane, and has a single outflow, the Rio Lago di Valle, which, after just 400 meters, flows into the Silla stream [it][3] (older sources consider Lake Valle the source of the Silla stream, in which case the Rio Lago di Valle would be its initial part[1][2]).

The lake serves as a biological corridor for numerous animal species, including its southern shore, occupied by a reed bed.[3] Among the fish species, notable ones include, among others, pike, eel, and various cyprinids, including the tench,[5] while among waterfowl, the moorhen,[6] the grey heron,[4] the mallard, the coot, and the great crested grebe are documented.

History

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A great crested grebe in the lake’s waters

Starting from the 1970s, the extraction of porphyry exerted significant anthropogenic pressure on the lake (in addition to the provincial road 71, which flanks it on the eastern shore); the waste from quarry processing (one of which, later closed, was located right next to the northern shore) ended up in the lake, either carried by rain or by human action (some discharge pumps were seized by the Comando carabinieri per la tutela ambientale e la transizione ecologica [it] in 2009.[7]); as a result, the lake underwent severe degradation, to the point that in the early 2000s it was considered almost devoid of life forms;[3][4][8] subsequently, a restoration and requalification project was initiated,[9] and, by 2020, fishing is possible in the lake[5]

Notes

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  1. ^ a b Bollettino ufficiale [Official Bulletin] (in Italian). Istituto poligrafico dello Stato. 1942. p. 2065.
  2. ^ a b c Zuccagni-Orlandini, Attilio (1840). Corografia fisica, storica e statistica dell'Italia corredata di un Atlante: di Mappe geografiche e topografiche [Physical, Historical, and Statistical Geography of Italy Accompanied by an Atlas: of Geographical and Topographical Maps] (in Italian). Vol. 7. p. 20.
  3. ^ a b c d e "Lago di Valle" [Lake Valle]. Go Studio (in Italian). Archived from the original on 27 July 2020. Retrieved 27 July 2020.
  4. ^ a b c Bosetti, Ugo (23 November 2002). "Il lago assediato" [The Besieged Lake]. QuestoTrentino (in Italian). Retrieved 27 July 2020.
  5. ^ a b "Laghi" [Lakes]. Associazione Pescatori Fersina Alto Brenta (in Italian). Retrieved 27 July 2020.
  6. ^ "PROGETTO PER LA TUTELA E LA VALORIZZAZIONE DEL BIOTOPO DIINTERESSE PROVINCIALE "LONA LASES"" [PROJECT FOR THE PROTECTION AND ENHANCEMENT OF THE PROVINCIAL BIOTOPE OF INTEREST "LONA LASES"] (PDF). Aree protette del Trentino, non solo Parchi (in Italian). Retrieved 27 July 2020.
  7. ^ "FORNACE, SEQUESTRO CAVE DI PORFIDO: "I LAVORATORI NON PAGHINO LE CONSEGUENZE"" [FORNACE, SEIZURE OF PORPHYRY QUARRIES: “WORKERS SHOULD NOT BEAR THE CONSEQUENCES”]. www.cisltn.it (in Italian). 20 April 2009. Archived from the original on 27 July 2020. Retrieved 27 July 2020.
  8. ^ "Lago di Valle, nuovo progetto per la sua rinaturalizzazione" [Lake Valle, New Project for Its Renaturalization]. Trentino (in Italian). 22 June 2017. Retrieved 27 July 2020.
  9. ^ "Area lago di Valle a Fornace: avanti con il risanamento" [Lake Valle Area in Fornace: Progress with Restoration]. Trentino (in Italian). 25 January 2020. Retrieved 27 July 2020.

Bibliography

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