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Characterization humic substances extracted from Amazonian soils

Grant number: 13/13013-3
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): September 01, 2013
Effective date (End): November 07, 2017
Field of knowledge:Physical Sciences and Mathematics - Chemistry
Principal Investigator:Débora Marcondes Bastos Pereira
Grantee:Amanda Maria Tadini
Home Institution: Embrapa Instrumentação Agropecuária. Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA). Ministério da Agricultura, Pecuária e Abastecimento (Brasil). São Carlos , SP, Brazil
Associated research grant:13/07276-1 - CEPOF - Optics and Photonic Research Center, AP.CEPID

Abstract

The Amazonian Forest occupies large portions of the national territory of Venezuela, Colombia, Peru, Guyana, Bolivia, Ecuador and Brazil, providing important services to humanity, such as high biodiversity, climate regulation, acting on carbon sequestration and regulation of water resources. Although the expansion of the deforested area and the use of land for agriculture, the Amazon plays a vital role in maintaining biodiversity, climate and regional hydrology and carbon storage levels. Changes induced by the use and occupation of land such as deforestation may affect the carbon loss and change soil composition interfering in the amount and chemical nature of natural organic matter present in this ecosystem as well as the structure of humic substances. Thus, to study the soil composition is important since the size and nature of components comprising the ground determining important characteristics such as water holding capacity and recycling of nutrients. Front of these observations this project aims to obtain important information on the chemical and spectroscopic characteristics of humic substances from soil and its main constituents, allowing us to understand its molecular composition and structure. For this, the following will be employed spectroscopic techniques, Spectrophotometry in the region of Fourier Transform Infrared (FTIR), Nuclear Magnetic Resonance (NMR), Electron Paramagnetic Resonance (EPR), Fluorescence, Laser Induced Fluorescence (LIF) and Laser Induced Breakdown Spectroscopy (LIBS).

Scientific publications (5)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
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. Web of Science Citations: 2.
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. Web of Science Citations: 5.
NICOLODELLI, GUSTAVO; TADINI, AMANDA MARIA; NOGUEIRA, MARCELO SAITO; PRATAVIEIRA, SEBASTIAO; MOUNIER, STEPHANE; CLABEL HUAMAN, JOSE LUIS; DOS SANTOS, CLEBER HILARIO; MONTES, CELIA REGINA; BASTOS PEREIRA MILORI, DEBORA MARCONDES. Fluorescence lifetime evaluation of whole soils from the Amazon rainforest. APPLIED OPTICS, v. 56, n. 24, p. 6936-6941, AUG 20 2017. Web of Science Citations: 3.
TADINI, AMANDA MARIA; NICOLODELLI, GUSTAVO; MOUNIER, STEPHANE; MONTES, CELIA REGINA; BASTOS PEREIRA MILORI, DEBORA MARCONDES. The importance of humin in soil characterisation: A study on Amazonian soils using different fluorescence techniques. Science of The Total Environment, v. 537, p. 152-158, DEC 15 2015. Web of Science Citations: 11.
SANTOS, CLEBER H.; NICOLODELLI, GUSTAVO; ROMANO, RENAN A.; TADINI, AMANDA M.; VILLAS-BOAS, PAULINO R.; MONTES, CELIA R.; MOUNIER, STEPHANE; MILORI, DEBORA M. B. P. Structure of Humic Substances from Some Regions of the Amazon Assessed Coupling 3D Fluorescence Spectroscopy and CP/PARAFAC. Journal of the Brazilian Chemical Society, v. 26, n. 6, p. 1136-1142, JUN 2015. Web of Science Citations: 11.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.