Anthropogenic affects on lake sedimentation process: a case study from Lake Sapanca, NW Turkey

Gürbüz A., Gürer Ö. F.

ENVIRONMENTAL GEOLOGY, vol.56, no.2, pp.299-307, 2008 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 56 Issue: 2
  • Publication Date: 2008
  • Doi Number: 10.1007/s00254-007-1165-0
  • Journal Name: ENVIRONMENTAL GEOLOGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.299-307
  • Keywords: Anthropogenic affect, Eastern Marmara, Lake Sapanca, Recent sedimentation, North Anatolian Fault Zone, REGION, ANATOLIA
  • Kocaeli University Affiliated: Yes

Abstract

Lake Sapanca in NW Turkey is a fault originated freshwater basin fed by seasonally variable flows of 15 streams. Considerations of lake-river interaction, supported by statistical measures of 47 bottom samples, suggest that sediment transport and deposition within the lake is controlled by two types of human constructed structures in addition to natural factors: (1) the dykes constructed in the front of streams, which feed the lake by strong flows, to prevent the filling of lakebed by coarse-grained sediments; (2) the constructed regulator on the outflowing Carksuyu stream results in a higher sedimentation rate of clay-sized material on the NE corner of the lake, which is extraordinary in the shelf environment.