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Peatlands evolution model of Serra do Espinhaço Meridional in a pedological, geomorphologic and geochemical approach

Grant number: 11/21191-3
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): January 01, 2012
Effective date (End): March 31, 2014
Field of knowledge:Agronomical Sciences - Agronomy
Principal Investigator:Pablo Vidal Torrado
Grantee:Jose Ricardo da Rocha Campos
Home Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil
Associated scholarship(s):12/19946-9 - Use of Ground Penetrating Radar to study stratigraphic controls on the formation of paleo bogs, BE.EP.DR

Abstract

The Serra do Espinhaço Meridional (SdEM) is composed mainly quartzite, phylites and metaconglomerate belonging to the Espinhaço Supergroup. In lowland of the landscape, mild climate, poor drainage and the existence of plant species adapted to such conditions favor the formation of peat bogs, characterized by high levels of organic matter. This ecosystem is home to many endemic species and serves as an important archive of climate and vegetation changes, in addition to acting directly on the dynamics of water in the basin in which it is. This work proposes to study the evolution model of peatlands, based on the hypothesis that these originated in recent Quaternary in depressions formed on surfaces of flattening from the morphogenesis of relief on geological materials with different susceptibility to weathering and erosion. This difference of rock types, together with the condition of climate and topography generates differential erosion causing the quartzite outcrop in the landscape and serve as bedrock of low permeability and formation of an oligotrophic environment needed for the genesis of peatland. A representative area of SdEM was selected and the analysis of geological, geomorphologic and satellite images, current and buried (paleosols) representative will be selected and sampled. Dating will be conducted by LOE (sediment) and radiocarbon dating (O.M). To verify the influence of bedrock in the geochemistry of peat bog will be tracked the source material of sedimentation through of total chemical and mineralogical analysis of soil fraction. Will be analyzed interstitial water pH, electrical conductivity, dissolved cations and carbon. Intended generate an evolution model that helps to understand the key elements that make the region an environment favorable to formation of peatlands.

Scientific publications
(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)
CAMPOS, JOSE R. DA R.; VIDAL-TORRADO, PABLO; MODOLO, ALCIR J. USE OF GROUND PENETRATING RADAR TO STUDY SPATIAL VARIABILITY AND SOIL STRATIGRAPHY. Engenharia Agrícola, v. 39, n. 3, p. 358-364, MAY-JUN 2019. Web of Science Citations: 0.
DA ROCHA CAMPOS, JOSE RICARDO; SILVA, ALEXANDRE CHRISTOFARO; NANNI, MARCOS RAFAEL; DOS SANTOS, MARCILENE; VIDAL-TORRADO, PABLO. Influence of the structural framework on peat bog distribution in the tropical highlands of Minas Gerais, Brazil. CATENA, v. 156, p. 228-236, SEP 2017. Web of Science Citations: 2.
DA ROCHA CAMPOS, JOSE RICARDO; SILVA, ALEXANDRE CHRISTOFARO; SLATER, LEE; NANNI, MARCOS RAFAEL; VIDAL-TORRADO, PABLO. Stratigraphic control and chronology of peat bog deposition in the Serra do Espinhaco Meridional, Brazil. CATENA, v. 143, p. 167-173, AUG 2016. Web of Science Citations: 4.
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
CAMPOS, Jose Ricardo da Rocha. Relationship between morphology, stratigraphy and hydrology in the formation of peatlands in the Serra do Espinhaço Meridional (MG). 2014. Doctoral Thesis - Universidade de São Paulo (USP). Escola Superior de Agricultura Luiz de Queiroz Piracicaba.

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