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Carbon dynamics in aboveground coarse wood biomass of wetland forests in the northern Pantanal, Brazil
1Max-Planck-Institute for Chemistry, Biogeochemistry Department, Joh.-J.-Becherweg 27, Universitätscampus, 55128 Mainz, Germany
2Instituto Nacional de Pesquisas da Amazônia, Av. André Araújo 2936, P.O. Box 478, 69011-970 Manaus-AM, Brazil
3Universidade Federal de Mato Grosso, Instituto de Biociências, Av. Fernando Correa s/n°, 78060-900 Cuiabá-MT, Brazil
Abstract. This is the first estimation on carbon dynamics in the aboveground coarse wood biomass (AGWB) of wetland forests in the Pantanal, located in Central Southern America. In four 1-ha plots in stands characterized by the pioneer species Vochysia divergens Pohl (Vochysiaceae) forest inventories (trees ≥10 cm diameter at breast height, DBH) have been performed and converted to predictions of AGWB by five different allometric models using two or three predicting parameters (DBH, tree height, wood density). Best prediction has been achieved using allometric equations with three independent variables. Carbon stocks (50% of AGWB) vary from 7.4 to 100.9 Mg C ha−1 between the four stands. Carbon sequestration differs 0.50–4.24 Mg C ha−1 yr−1 estimated by two growth models derived from tree-ring analysis describing the relationships between age and DBH for V. divergens and other tree species. We find a close correlation between estimated tree age and C-stock, C-sequestration and C-turnover (mean residence of C in AGWB).
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Citation: Schöngart, J., Arieira, J., Felfili Fortes, C., Cezarine de Arruda, E., and Nunes da Cunha, C.: Carbon dynamics in aboveground coarse wood biomass of wetland forests in the northern Pantanal, Brazil, Biogeosciences Discuss., 5, 2103-2130, 2008. Bibtex EndNote Reference Manager
