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Abstract:
The closed basin (polje-like) of Lake Fucino (+660 m) in Abruzzo is of tectonic origin with very considerable plio-pleistocene filling. The underground drainage by the south-west ponors is insufficient. Thereby the lake is subject to continual oscilla-tions, particularly in keeping with the cli-matic fluctuations studied for the holocene period and historic times. The drainage was carried out in 1st century A.D. under Emperor Claudius, by the dig-ging of a 5640m tunnel, and continued by Traianus and Adrianus, for the stabili-zation of the lake level, and land reclama-tion. By the 5/6th century, for lack of repair, this canal had ceased to function and the lake returned to its original dimension. In mid 19th century, a Company founded by a rich Roman ban-ker, A. Torionia, had a new canal built utilising the original Roman one. This led to the complete draining out of the lake by a canal system, and the full land reclama-tion renewed after the agrarian reform (1951) by a public society, the E.R.S.A.