Banca de DEFESA: ILO CESAR MENEZES DE ANDRADE

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : ILO CESAR MENEZES DE ANDRADE
DATA : 14/09/2018
HORA: 09:00
LOCAL: Instituto de Geociências
TÍTULO:

PEDOGEOMORFOLOGICAL CHARACTERIZATION AND EVOLUTION OF AN ARGISSOLO TRANSFORMATION SYSTEM - SPODESOLO ON COASTAL TABLES OF APA COAST NORTHERN STATE OF BAHIA

PALAVRAS-CHAVES:

Keywords: Pedogemorphology, Coastal Tablelands, Topossequence, Argisols – Spodosols.

PÁGINAS: 127
GRANDE ÁREA: Ciências Humanas
ÁREA: Geografia
SUBÁREA: Geografia Regional
ESPECIALIDADE: Análise Regional
RESUMO:

According to the scope of the integrated landscape studies, the soils are insert as an important element in the analysis of the physical environment, capable to intermediate the relations between climate, land forms and geological substratum. In this sense, this research is aimed in increasing the knowledge about the pedologic systems and the pedogeomorphologic evolution of an área located on a lowered plateau, wich is situated in a preserved compartiment of the Coastal Tablelands in the APA Litoral Norte of the Bahia State. Thus, through the study of an transformation system Argissolo – Espodossolo, found on a slope situated in a mild depression on the edge of the plateau, it was sought to establish an association between the spatial soils organization and the landform evolution, using for this, the Structural Analysis of the pedological cover. For this, in addition to a detailed characterization of soils in topossequence, a morphostructural analysis of the relief and its relation with the drainage network was performed. With the gathered information, it was identified the existence of a podzolization process that transformed the Argisols in Spodosols, acting from base to top of the slope. In the same way, this process transformed a lateritic iron crust that may have been the parental material of the Argisols. The installation of this process is associated with an old depression and the existence of an less permeable subsurface layer, that has promoted the water flow concentration and a floating water table. With the depression evolution to a drainage head, the podzolization process was interrupted and, currently, the soils are being eroded by the openin valleys process, caused by the drainage network. In this way, the results interpretation allowed an association between the soil evolution and the landform evolution in the stud y site. 

MEMBROS DA BANCA:
Presidente - 1915041 - ALISSON DUARTE DINIZ
Externo à Instituição - FABIO CARVALHO NUNES - IFBA
Externo à Instituição - GUILHERME TAITSON BUENO - UFG