Articles | Volume 14, issue 9
Research article
12 May 2017
Research article |  | 12 May 2017

Modelling the genesis of equatorial podzols: age and implications for carbon fluxes

Cédric Doupoux, Patricia Merdy, Célia Régina Montes, Naoise Nunan, Adolpho José Melfi, Osvaldo José Ribeiro Pereira, and Yves Lucas


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Latest update: 30 Sep 2023
Short summary
Amazonian podzol soils store huge amounts of carbon and play a key role in transferring organic matter to the Amazon River. We modelled their formation by constraining both total carbon and radiocarbon. We found that the most waterlogged zones of the podzolized areas are the main source of dissolved organic matter found in the river network. The genesis time calculated considering the more likely settings runs to around 15–25 and 150–250 kyr for young and old podzols, respectively.
Final-revised paper