Quantifying ecosystem CO2 exchange: intercomparison of methodsThe exchange of carbon dioxide (CO2) between terrestrial ecosystems and the atmosphere is one of the major interactions between the biosphere and the atmosphere, a key descriptor of ecosystem functioning and a major influence on atmospheric CO2 concentration. Two empirical approaches are generally used to quantify ecosystem CO2 exchange at the ecosystem level: the eddy-covariance technique (EC) and biometric methods (BM). In a recent publication in Nature Communications, both methods have been critically compared with respect to assessing carbon budgets of forests.
Despite pinpointing discrepancies between methods, the overall results increase the confidence for using EC technique, and they show potential improvement aspects for converging data resulting from EC and BM techniques.
Evaluating the convergence between eddy-covariance and biometric methods for assessing carbon budgets of forests
M. Campioli, Y. Malhi,*, S. Vicca1, S. Luyssaert3, D. Papale, J. Penuelas, M. Reichstein, M. Migliavacca, M.A. Arain & I.A. Janssens
NATURE COMMUNICATIONS | 7:13717 | DOI: 10.1038/ncomms13717