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| Titel |
Age-related and stand-wise estimates of carbon stocks and sequestration in the aboveground coarse wood biomass of wetland forests in the northern Pantanal, Brazil |
| VerfasserIn |
J. Schöngart, J. Arieira, C. Felfili Fortes, E. Cezarine de Arruda, C. Nunes da Cunha |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1726-4170
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| Digitales Dokument |
URL |
| Erschienen |
In: Biogeosciences ; 8, no. 11 ; Nr. 8, no. 11 (2011-11-28), S.3407-3421 |
| Datensatznummer |
250006208
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| Publikation (Nr.) |
 copernicus.org/bg-8-3407-2011.pdf |
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| Zusammenfassung |
| In this study we use allometric models combined with tree ring analysis to
estimate carbon stocks and sequestration in the aboveground coarse wood
biomass (AGWB) of wetland forests in the Pantanal, located in central South
America. In four 1-ha plots in stands characterized by the pioneer tree
species Vochysia divergens Pohl (Vochysiaceae) forest inventories (trees ≥10 cm diameter
at breast height, D) have been performed and converted to estimates of AGWB
by two allometric models using three independent parameters (D, tree height
H and wood density ρ). We perform a propagation of measurement errors to
estimate uncertainties in the estimates of AGWB. Carbon stocks of AGWB vary
from 7.8 ± 1.5 to 97.2 ± 14.4 Mg C ha−1 between the four stands.
From models relating tree ages determined by dendrochronological techniques
to C-stocks in AGWB we derived estimates for C-sequestration which differs
from 0.50 ± 0.03 to 3.34 ± 0.31 Mg C ha−1 yr−1. Maps based on
geostatistic techniques indicate the heterogeneous spatial distribution of
tree ages and C-stocks of the four studied stands. This distribution is the
result of forest dynamics due to the colonizing and retreating of V. divergens and other
species associated with pluriannual wet and dry episodes in the Pantanal,
respectively. Such information is essential for the management of the
cultural landscape of the Pantanal wetlands. |
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