This paper describes preliminarily the main geomorphological characteristics of the lakes of the high Emilia-Romagna Apennines. The term “lake” is attributed to those features of the landscape indicated by this name in bibliographic references, whereas the term “high” refers to the Apennine sector above the altitude of 1000 m a.s.l.The illustrated data are taken from an inventory of the lakes which was prepared through a detailed bibliographic research on single lakes, the compilation of lake data sheets and elaboration of a Map of the Lakes. For each lake the data sheets contain the name, geographic location, dimensions, presence of an influent and effluent, origin, summarised description from literature, state of conservation, bibliography and explanatory notes if present. In the Map of the Lakes the various lakes were numbered and represented according to their origin. In total, 118 lakes were inventoried and analysed on the basis of their main characteristics. From this analysis, it comes out that most lakes (95% circa) are located west of the R. Reno basin. As for altitude, the highest percentage of lakes (20% circa) is located in the altimetric belt ranging from 1300 to 1400 m. Most of the lakes have an area lower than 1 ha. As for their origin (which in 12% of the cases is not indicated in bibliography), the most common genesis (about 65%) is due to glacial processes and, secondarily, landslide processes (about 17%). In particular, glacial lakes are exclusively found west of the R. Reno catchment basin. This is related to the fact that during the last glacial period the glaciers of the northern Apennines were located exclusively west of the R. Reno basin. By considering the state of conservation, it results that 102 lakes (86.5%) are existent (with 75 permanent and 27 temporary) whereas 16 are extinct (13.5%). The data relative to active lakes (location within their catchment basins, distribution according to altitude, area and origin) are consistent with all general data. Nevertheless, the detailed analysis of extinct lakes emphasises that their disappearance affected mainly the basin of the R. Secchia, those ranging between 1000 and 1400 m a.s.l., those with a surface less than 1 hectare and glacial lakes.
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|Anno di pubblicazione:||2002|
|Titolo:||The lakes of the high Emilia-Romagna Apennines (northern Italy): a preliminary review of their geomorphological characteristics.|
|Autori:||D. CASTALDINI; P. CORATZA; M. IOTTI|
|Appare nelle tipologie:||Articolo su rivista|
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