Carbon cycling in large lakes of the world: A synthesis of production, burial, and lake-atmosphere exchange estimates
Article first published online: 10 JUL 2007
Copyright 2007 by the American Geophysical Union.
Global Biogeochemical Cycles
Volume 21, Issue 3, September 2007
How to Cite
2007), Carbon cycling in large lakes of the world: A synthesis of production, burial, and lake-atmosphere exchange estimates, Global Biogeochem. Cycles, 21, GB3002, doi:10.1029/2006GB002881., and (
- Issue published online: 10 JUL 2007
- Article first published online: 10 JUL 2007
- Manuscript Accepted: 16 MAY 2007
- Manuscript Revised: 16 APR 2007
- Manuscript Received: 5 NOV 2006
- carbon cycling;
- large lakes
 We present a synthesis of available estimates of primary production, organic carbon burial, and lake-atmosphere carbon dioxide exchange data for large lakes of the world. All three fluxes showed significant relationships with latitude and related climate variables, with lower production, higher evasion of carbon dioxide, and higher burial efficiency at higher latitudes. There was no relationship between raw organic carbon mass accumulation rates and latitude. Our estimates suggest that an order of magnitude more carbon is lost to the atmosphere by evasion than is buried in sediments at a global scale, with total global production, evasion, and burial fluxes of approximately 250, 90, and 7 Tg C yr−1. Finally, the data suggest a trend from autotrophy in low-latitude large lakes to heterotrophy and increasing reliance on allochthonous carbon sources in lakes at higher latitudes.