Abstract
The sediment discharge that ends up in the Red Lake is important, mostly given that the last decades have been characterized by intense deforestations. These have accelerated the erosion and the silting of the lake basin, as well. In order to correctly assess the source areas of the sediments, from the drainage basin, satellite imagery has been used, to accurately identify the areas that have suffered from deforestation in the last decades. Through deforestation, the slopes are severely destabilized, being vulnerable to landslides, high-water waves, etc. Several silt samples from the bottom of the lake were taken in 17 points covering the whole surface of the lake. The thickness of the lacustrine sediments varies extremely, reaching a maximum of over 6 m in the spillway sectors of the two important brooks: Oaia (Oii) and Suhard. The silting process was also measured by comparing bathymetrical transects between the measurements taken by Pişotă and Năstase in 1957 and the measurements taken in 2010 with specialized equipment. Therefore, the silting rate is a very important parameter, associated with numerous processes both natural and anthropic. Silting has also been studied with the help of gravity core samples. Several USLE models have been made, to emphasize the difference between natural erosion and accelerated erosion, due to illegal deforestation. Silting analysis is very important, because, by using different methods, predictions on future silting rates can be made and we can estimate the lifespan of the lake.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Begy R, Cosma C, Timar A (2009) Recent changes in Red Lake (Romania) sedimentation rate determined from depth profile of 210Pb and 137Cs radioisotopes. J Environ Radioact 100:644–648
Bojoi I (1968a) Observaţii asupra reliefului carstic din masivul Hăghimaş. In: Proceedings of the station for the biologic, geologic and geographic research Stejaru, vol 1
Bojoi I (1968b) Contributii la sedimentologia Lacului Rosu. In: Proceedings of the station for the biologic, geologic and geographic research Stejaru (in Romanian) vol 1. pp 87–105
Clague J, Luckman BH, Van Dorp RD, Gilbert R, Froese D, Jensen BJL, Reyes AV (2006) Rapid changes in the level of Klaune lake in Yukon territory over the last millennium. Quat Res, Elsevier 66:342–355
Forrest AL, Laval BE, Pieters R, Lim DSS (2008) Convectively driven transport in temperate lakes. Limnol Oceanogr 53(5):2321–2332
Hutchinson SM, Armitage R, Frantiuc A, Haliuc A, Mîndrescu M, Romanescu G (2012) The recent palaeolimnology of Red lake (Romania); assessing sediment sources for environmental management. Symposium: water resources and wetlands, 14–16 Sept 2012, Tulcea, Romania (Poster)
Miller MP, Mcknight DM, Chapra SC, Williams MW (2009) A model of degradation and production of three pools of dissolved organic matter in an alpine lake. Limnol Oceanogr 54(6):2213–2227
Mulholland PJ, Kuenzler EJ (1979) Organic carbon export from upland and forested wetland watersheds. Limnol Oceanogr 24:960–966
Nechita N (2003) Flora si vegetatia cormofitelor din masivul Hasmas, Cheile Bicazului si Lacului Rosu (The flora and vegetation of the cormophytes from Hasmas Massif, Bicaz Gorges, and the Red Lake). Bibliotheca Historiae Naturalis II, Natural Sciences Museum, Piatra Neamt, pp 1–383
Pandi G (2004) A Gyilkos-Tó. Hidrogeográfiai tanulmány. Casa Cartii de Stiinta Publishing House, Cluj, pp 1–231
Pişotă I, Năstase A (1957) Lacul Rosu, nod de confluenta a trei bazine hidrografice. Probleme de geografie (in Romanian) 4:181–205
Romanescu G, Cojocaru I (2010) Hydrogeological considerations on the western sector of the Danube Delta—a case study for the Caraorman and Saraturile fluvial-marine levees (with similarities for the Letea levee). Environ Eng Manage J 9(6):795–806
Strahler AN (1952) Hypsometric (area-altitude) analysis of erosional topography. Bull Geol Soc Am 63:1117–1142
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
Copyright information
© 2013 Springer Science+Business Media Dordrecht
About this chapter
Cite this chapter
Romanescu, G., Stoleriu, C.C., Enea, A. (2013). The Nature of the Sediments Within the Lacustrine Basin. In: Limnology of the Red Lake, Romania. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-6757-7_6
Download citation
DOI: https://doi.org/10.1007/978-94-007-6757-7_6
Published:
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-007-6756-0
Online ISBN: 978-94-007-6757-7
eBook Packages: Earth and Environmental ScienceEarth and Environmental Science (R0)