Modelling the dynamics of equatorial forest soil deep carbon in changing environments - C-PROFOR

• Processo: 12/51469-6
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Data de Início da vigência: 01 de fevereiro de 2013
• Data de Término da vigência: 30 de setembro de 2016
• Área do conhecimento: Ciências Exatas e da Terra - Geociências
• Acordo de Cooperação: ANR - Blanc
• Pesquisador responsável: Adolpho José Melfi
• Beneficiário: Adolpho José Melfi
• Pesquisador Responsável no exterior: Yves Lucas
• Instituição Parceira no exterior: Université de Toulon (UTLN), França
• Instituição Sede: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brasil
• Pesquisadores principais: Célia Regina Montes
• Bolsa(s) vinculada(s): 14/09936-1 - Determinação do carbono total de horizontes BH profundos de perfis de espodossolos da amazônica, BP.TT
• Assunto(s): Florestas Solos Meio ambiente
• Palavra(s)-Chave do Pesquisador: Geosciences

Resumo

The Amazonian podzols may store larger amounts of carbon (C) particularly in their deep Bh horizons. Similar high C storage is likely to exist in similar climate/soil areas, mainly in Africa. Such C stocks raise the problem of their stability in response to changes in land use or climate. Any significant changes in vegetation cover would significantly alter the soil water dynamics, Which is likely to affect the organic matter (OM) turnover in soils. The direction of the change is not clear and is likely to depend on the specific conditions and properties of the soils. Considering the Bh of the equatorial podzols, it can be assumed that the drying of these generally saturated soils will lead to an increase in C mineralization, although the extent of this increase has not yet been determined. In 1hls context, the project objective is to quantify the rates of podzol OM mineralization under different scenarios of climate change towards drier or more variable moisture conditions. This requires (1) the quantification of podzol OM mineralization under alternating wet/dry cycles and (2) the modelling of water dynamics in podzols systems submitted to land use or climate changes. (1) will be addressed by quantifying the ability of soil microorganisms to metabolize the soil OM by monitoring mineralization at different matric potentials and under alternating wet/dry cycles, and {2) by modelling water dynamics under different land use/climate scenarios, using the knowledge of podzol system already obtained or being acquired by ongoing studies. Additional data and validation of the long-term modelling will be sought by studying natural chronosequences… (AU)

Publicações científicas

(10)

(Referências obtidas automaticamente do Web of Science e do SciELO, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores)

TADINI, AMANDA MARIA; MOUNIER, STEPHANE; BASTOS PEREIRA MILORI, DEBORA MARCONDES. Modeling the quenching of fluorescence from organic matter in Amazonian soils. Science of The Total Environment, v. 698, JAN 1 2020. (13/13013-3, 11/03250-2, 13/07276-1, 12/51469-6)

LUCAS, YVES; SANTIN, ROBERTA CLEMENTE; DA SILVA, WILSON T. L.; MERDY, PATRICIA; MELFI, ADOLPHO JOSE; RIBEIRO PEREIRA, OSVALDO JOSE; MONTES, CELIA REGINA. Soil sample conservation from field to lab for heterotrophic respiration assessment. METHODSX, v. 7, 2020. (12/51469-6, 11/03250-2)

TADINI, AMANDA M.; NICOLODELLI, GUSTAVO; MARANGONI, BRUNO S.; MOUNIER, STEPHANE; MONTES, CELIA R.; MILORI, DEBORA M. B. P.. Evaluation of the roles of metals and humic fractions in the podzolization of soils from the Amazon region using two analytical spectroscopy techniques. Microchemical Journal, v. 144, p. 454-460, JAN 2019. (12/51469-6, 13/07276-1, 13/13013-3, 11/03250-2)

MERDY, PATRICIA; LUCAS, YVES; COULOMB, BRUNO; MELFI, ADOLPHO J.; MONTES, CELIA R.. Soil organic carbon mobility in equatorial podzols: soil column experiments. SOIL, v. 7, n. 2, p. 585-594, SEP 6 2021. (11/03250-2, 12/51469-6)

TADINI, AMANDA M.; NICOLODELLI, GUSTAVO; SENESI, GIORGIO S.; ISHIDA, DEBORA A.; MONTES, CELIA R.; LUCAS, YVES; MOUNIER, STEPHANE; GUIMARAES, FRANCISCO E. G.; MILORI, DEBORA M. B. P.. Soil organic matter in podzol horizons of the Amazon region: Humification, recalcitrance, and dating. Science of The Total Environment, v. 613, p. 160-167, FEB 1 2018. (13/07276-1, 11/03250-2, 12/51469-6, 13/13013-3)

MONTES, CELIA R.; MERDY, PATRICIA; DA SILVA, WILSON T. L.; ISHIDA, DEBORA; MELFI, ADOPHO J.; SANTIN, ROBERTA C.; LUCAS, YVES. Mineralization of soil organic matter from equatorial giant podzols submitted to drier pedoclimate: A drainage topochronosequence study. CATENA, v. 222, p. 10-pg., 2022-12-08. (12/51469-6, 11/03250-2, 12/18092-6)

TADINI, AMANDA M.; NICOLODELLI, GUSTAVO; HAJJOUL, HOUSSAM; MILORI, DEBORAM. B. P.; MOUNIER, STEPHANE. Humic fractions from Amazon soils: Lifetime study and humification process by fluorescence spectroscopy. APPLIED GEOCHEMISTRY, v. 147, p. 8-pg., 2022-11-01. (13/13013-3, 13/07276-1, 12/51469-6, 11/03250-2)

ISHIDA, DEBORA AYUMI; VIEIRA-COELHO, ANTONIO CARLOS; MELFI, ADOLPHO JOSE; LUCAS, YVES; BRASILIANO CAMARGO, JOAO PAULO; MONTES, CELIA REGINA. Influence of pedogenetic processes on the validity of kaolinite crystallinity indices: A case study of an Amazonian Ferralsol-Podzol soil system with white kaolin. APPLIED CLAY SCIENCE, v. 162, p. 435-442, SEP 15 2018. (07/02543-0, 11/03250-2, 12/51469-6)

GORANOV, ALEKSANDAR I.; TADINI, AMANDA M.; MARTIN-NETO, LADISLAU; BERNARDI, ALBERTO C. C.; OLIVEIRA, PATRICIA P. A.; PEZZOPANE, JOSE R. M.; MILORI, DEBORA M. B. P.; MOUNIER, STEPHANE; HATCHER, PATRICK G.. Comparison of Sample Preparation Techniques for the (-)ESI-FT- ICR-MS Analysis of Humic and Fulvic Acids. Environmental Science & Technology, v. 56, n. 17, p. 14-pg., 2022-09-06. (11/03250-2, 13/13013-3, 17/20084-5, 19/02939-9, 12/51469-6, 17/22950-1, 13/07276-1)

DOUPOUX, CEDRIC; MERDY, PATRICIA; MONTES, CELIA REGINA; NUNAN, NAOISE; MELFI, ADOLPHO JOSE; RIBEIRO PEREIRA, OSVALDO JOSE; LUCAS, YVES. Modelling the genesis of equatorial podzols: age and implications for carbon fluxes. BIOGEOSCIENCES, v. 14, n. 9, p. 2429-2440, MAY 12 2017. (11/03250-2, 12/51469-6)