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Banca de DEFESA: JOSIEL DORRIGUETTE DE OLIVEIRA

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
DISCENTE : JOSIEL DORRIGUETTE DE OLIVEIRA
DATA : 23/08/2021
HORA: 13:30
LOCAL: Sala virtual google.meet
TÍTULO:

GEOENVIRONMENTAL UNITS, USE AND OCCUPATION OFEARTH, PEDOLOGICAL AND DYNAMIC COVERAGERIVER BASIN IN THE RIO BRANCO HYDROGRAPHIC BASIN,PANTANAL MATO-GROSSENSE TAXPAYER

PALAVRAS-CHAVES:

Colonization. Landscape. Soil survey. Impactsenvironmental

PÁGINAS: 358
GRANDE ÁREA: Ciências Biológicas
ÁREA: Biologia Geral
RESUMO:

Studying hydrographic basins allows us to understand the relationship between the environmental components (physical, biotic and anthropic) and the availability and water functioning, being a necessary instrument for preservation, mitigation and management of water resources. The purpose of this research was verify the environmental impacts arising from the occupation process, carry out the environmental characterization, analyze the fluvial dynamics in the hydrographic basin of the Branco River and compartmentalize the basin into geoenvironmental units. THE methodology consisted of six steps, namely: document analysis and bibliographic; interpretation of thematic maps; on-site visits; data collect in the field; laboratory analysis and data tabulation. In order to understand the colonization process, we resorted to document analysis and bibliographic reference; the associated environmental impacts were verified in the field; the geoenvironmental compartmentation was carried out having in first plan the morphology of the relief. To carry out the soil mapping, it was performed the morphological description of soils in 11 trenches and association with 13 profiles performed by previous studies; the hydrodynamic variables and the sediment transport was verified in 24 sections over a period of 18 months between January 2018 and June 2019. The thematic maps were generated with the aid of satellite images and secondary SEPLAN data and IBGE. The analyzes of bottom and soil sediments followed the methodology proposed by Embrapa (2017). To obtain the bathymetry, we used echobathimeter and, to measure the flow velocity, the reel was used fluviometric. In order to collect the suspended sediment, the bottle of Van Dorn and, for bottom sediments, the Van Veen dredger was used. THE occupation in the basin began in the 1960s, bringing with it associated impacts, such as the suppression of APPs, erosive processes, siltation of drainage channels, urban waste and sewage Restroom. In the soil mapping, the following coverages were defined Predominant pedological: Typical Dystrophic Red-Yellow Argisol; Haplic Cambisol Tb Dystrophic leptic; Typical Aluminum Haplic Gleysol; Argissolic Red Dystrophic Latosol; Red-Yellow Latosol Typical aluminum; Fragmentary dystrophic Litholic Neosol; Neosol Typical Orthic Quartzarenic; Leptic Orthic Quartzrenic Neosol; Nitossoil Typical Dystroferric Red; and typical Dystrophic Haplic Plintosol. The flow in the section XXIV – which is close to the exultation of the Rio Branco – varied between 4.28m3/s and 82.36m3/s, the solid load in suspension was between 14.51 and 715.52 t/day, turbidity was between 9.61 and 258 UTN, in the granulometric composition of bottom sediments, the fine sand fraction predominated. Four were defined Geoenvironmental Units (UG): GU-I comprises the plateau; the UG-II corresponds to mountains with slopes of up to 20%; UG-III covers the areas of mountains where the slope is greater than 20% and the UG-IV covers the areas where depression and river plains predominate. The study allowed us to understand the interaction and environmental dynamics, spatialization, mode of use and occupation of land and understand how the drainage network is established in the context of the Branco river basin and how the interaction of the biotic and abiotic interferes with the hydrodynamics of the channels.

MEMBROS DA BANCA:
Interno - 80797005 - CARLA GALBIATI
Presidente - 83161001 - CELIA ALVES DE SOUZA
Externo à Instituição - JOÃO OSVALDO RODRIGUES NUNES - UNESP
Externo à Instituição - JUBERTO BABILÔNIA DE SOUSA - IFMT
Interno - 110049004 - MARIA APARECIDA PEREIRA PIERANGELI

Notícia cadastrada em: 22/07/2021 18:08