Journal
ORGANIC GEOCHEMISTRY
Volume 34, Issue 5, Pages 671-680Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0146-6380(03)00022-6
Keywords
-
Categories
Ask authors/readers for more resources
The biogeochemical processes that dominantly influence carbon cycling at the sediment-water interface in a eutrophic mountain lake (Jezero na Planini pri Jezeru, Slovenia) were studied for 2 years using measurements of the stable isotopic composition of carbon, as well as chemical analyses of the pore waters and sediment. According to the isotopic mass balance the major contribution of the most important aquatic carbonate species (dissolved inorganic carbon-DIC) is derived from methanogenesis (67-92%) and much less from decomposition of sedimentary organic carbon with other electron acceptors (8-23%). The contribution of calcite dissolution was observed only in 1999 when it varied throughout the year from 3-16% and did not influence DIC production appreciably. The lake sediment is an important sink of organic carbon that accumulates at the bottom of the lake. (C) 2003 Elsevier Science Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available