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| Titel |
Mapping peatland pools to improve estimations of carbon store on a boreal peatland in Canada |
| VerfasserIn |
John Connolly, Julie Talbot, Luc Pelletier |
| Konferenz |
EGU General Assembly 2014
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 16 (2014) |
| Datensatznummer |
250091247
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| Publikation (Nr.) |
 EGU/EGU2014-5526.pdf |
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| Zusammenfassung |
| The total global spatial extent of peatlands is small ranging between 4 - 6% of the terrestrial
environment but they contain up to 33% of the global soil organic carbon (SOC) stock.
Current total stocks are estimated to be 547 Gt of C. Therefore on a meter for meter basis
peatland store more carbon than any other terrestrial ecosystem. The long-term rate at which
carbon accumulates (LORCA, the total carbon per unit area divided by the time since the
beginning of accumulation) shows large variability with values ranging from 3.4 to 70.6 g C
m-2 yr-1. These rates are dependent on factors such as the balance between temperature
and precipitation or on growing season length and net photosynthetically active
radiation.
The estimated amount of carbon stored in peatlands is, in many cases, based on spatial
extrapolations of carbon content values from peat core analysis or modelled from peat
depth measurements. However, these estimations ignore fine scale features that
occur in peatlands, such as small open water features (pools |
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