Banca de DEFESA: Maria Aparecida Ramos Barros

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : Maria Aparecida Ramos Barros
DATA : 24/04/2024
HORA: 18:00
LOCAL: https://meet.google.com/acr-wbdg-apu
TÍTULO:

INTERFERENCE OF LAND OCCUPATION AND USE IN THE DEGRADATION OF THE SPRINGS OF THE RIVER BRANCO-MT HYDROGRAPHIC BASIN

PALAVRAS-CHAVES:

Springs; Environmental impacts; Degradation.

PÁGINAS: 101
GRANDE ÁREA: Ciências Exatas e da Terra
ÁREA: Geociências
SUBÁREA: Geografia Física
RESUMO:

Considering the increasing occupation of the springs in the White River watershed, located in the southwestern region of the state of Mato Grosso, and the risk of their degradation compromising the availability of water resources, this research aimed to assess the current state of degradation in springheads of water bodies in the White River watershed to support their protection or recovery through environmental planning. The methodological procedures used included: bibliographic research for theoretical-conceptual grounding; and fieldwork to: identify the factors that interfere with the water availability of the watershed; inventory and assess environmental impacts on selected springs; and identify the socio-environmental perception of rural landowners regarding the use and management of springs. The results show that the relief pattern and predominant rock types favor water infiltration and underground storage that feed the springs, as they are generally flat surfaces with metamorphosed sedimentary rocks and intensely fractured, forming porous aquifers. However, in the mountains, water is stored only in the fractures and fissures of the igneous and metamorphic rocks that constitute them. The average annual rainfall volume favors aquifer recharge, but its intensity and seasonal concentration reduce recharge time; moreover, the dense water network facilitates surface runoff of rainfall, and deforestation associated with intense anthropic occupation in recent decades compromises water infiltration that recharges the aquifers. This occupation has reached the springs, causing significant degradation, as expressed in the environmental assessment conducted, which showed that 87.5% of the studied springs fall into the Poor or Very Poor classes, with the remainder falling into the Fair class, and none in the Excellent or Good classes. Responses to the questionnaire applied to the owners of the studied springs showed lack of oversight and training; the latter is reflected in the management practices implemented by them on their properties, even though they recognize the importance of preserving the springs to maintain water supply.

MEMBROS DA BANCA:
Presidente - 130087004 - ALFREDO ZENEN DOMINGUEZ GONZALEZ
Interno - 113239002 - JOAQUIM CORREA RIBEIRO
Externo à Instituição - JOSIEL DORRIGUETTE DE OLIVEIRA - Dep. Fran