Abstract
Inland waters, just as the world's oceans, play an important role in the global carbon cycle. While lakes and reservoirs typically emit CO2, they also bury carbon in their sediment. The net CO2 emission is largely the result of the decomposition or preservation of terrestrially supplied carbon. What regulates the balance between CO2 emission and carbon burial is not known, but climate change and temperature have been hypothesized to influence both processes. We analyzed patterns in carbon dioxide partial pressure (pCO2) in 83 shallow lakes over a large climatic gradient in South America and found a strong, positive correlation with temperature. The higher pCO2 in warmer lakes may be caused by a higher, temperature-dependent mineralization of organic carbon. This pattern suggests that cool lakes may start to emit more CO2 when they warm up because of climate change.
| Original language | English |
|---|---|
| Article number | GB2007 |
| Journal | Global Biogeochemical Cycles |
| Volume | 24 |
| Issue number | 2 |
| DOIs | |
| State | Published - Apr 1 2010 |
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ASJC Scopus subject areas
- Global and Planetary Change
- Atmospheric Science
- Environmental Science(all)
- Environmental Chemistry
Cite this
Climate-dependent CO2 emissions from lakes. / Kosten, Sarian; Roland, Fábio; Da Motta Marques, David M L; Van Nes, Egbert H.; Mazzeo, Néstor; Sternberg, Leonel; Scheffer, Marten; Cole, Jon J.
In: Global Biogeochemical Cycles, Vol. 24, No. 2, GB2007, 01.04.2010.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Climate-dependent CO2 emissions from lakes
AU - Kosten, Sarian
AU - Roland, Fábio
AU - Da Motta Marques, David M L
AU - Van Nes, Egbert H.
AU - Mazzeo, Néstor
AU - Sternberg, Leonel
AU - Scheffer, Marten
AU - Cole, Jon J.
PY - 2010/4/1
Y1 - 2010/4/1
N2 - Inland waters, just as the world's oceans, play an important role in the global carbon cycle. While lakes and reservoirs typically emit CO2, they also bury carbon in their sediment. The net CO2 emission is largely the result of the decomposition or preservation of terrestrially supplied carbon. What regulates the balance between CO2 emission and carbon burial is not known, but climate change and temperature have been hypothesized to influence both processes. We analyzed patterns in carbon dioxide partial pressure (pCO2) in 83 shallow lakes over a large climatic gradient in South America and found a strong, positive correlation with temperature. The higher pCO2 in warmer lakes may be caused by a higher, temperature-dependent mineralization of organic carbon. This pattern suggests that cool lakes may start to emit more CO2 when they warm up because of climate change.
AB - Inland waters, just as the world's oceans, play an important role in the global carbon cycle. While lakes and reservoirs typically emit CO2, they also bury carbon in their sediment. The net CO2 emission is largely the result of the decomposition or preservation of terrestrially supplied carbon. What regulates the balance between CO2 emission and carbon burial is not known, but climate change and temperature have been hypothesized to influence both processes. We analyzed patterns in carbon dioxide partial pressure (pCO2) in 83 shallow lakes over a large climatic gradient in South America and found a strong, positive correlation with temperature. The higher pCO2 in warmer lakes may be caused by a higher, temperature-dependent mineralization of organic carbon. This pattern suggests that cool lakes may start to emit more CO2 when they warm up because of climate change.
UR - http://www.scopus.com/inward/record.url?scp=77954324672&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77954324672&partnerID=8YFLogxK
U2 - 10.1029/2009GB003618
DO - 10.1029/2009GB003618
M3 - Article
AN - SCOPUS:77954324672
VL - 24
JO - Global Biogeochemical Cycles
JF - Global Biogeochemical Cycles
SN - 0886-6236
IS - 2
M1 - GB2007
ER -