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Afforestations - a carbon sink or source?
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In the Kyoto protocol 1997, afforestation of former arable land has been acknowledged as a land use change that contributes to the mitigation of increasing atmospheric CO2 concentration. However, there are indications that especially during the first years after afforstations of grassland considerable loss of carbon may occur. This is due to disturbance of the soil organic carbon pool which is the biggest organic carbon pool in terrestrial ecosystems. Whether an afforestion stand will act as a C source or C sink during the first years after establishing is up till now under discussion.
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Carbon fluxes in terrestrial ecosystems |
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Longterm measurements on carbon fluxes and a deeper understanding of the carbon turnover and processes in soils are needed. (Follow link to carbon research design.)
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