Banca de DEFESA: VIRGINIA KELLER FIGUEIREDO

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : VIRGINIA KELLER FIGUEIREDO
DATA : 10/12/2022
HORA: 08:00
LOCAL: Sala do PPGGeo - Cidade Universitária - Bloco I
TÍTULO:

ANTHROPIC IMPACTS IN SPRING AREAS OF THE LOW COURSE OF THE CÓRREGO GRANDE (CORGÃO) HYDROGRAPHIC SUB-BASIN, MT.

PALAVRAS-CHAVES:

Anthropization; Springs; Degradation; Evaluation.

PÁGINAS: 92
GRANDE ÁREA: Ciências Exatas e da Terra
ÁREA: Geociências
SUBÁREA: Geografia Física
RESUMO:

The growing scarcity of water resources indicates the need to pay attention to the environmental situation of the springs, given that they are essential to guarantee the flow of water from rivers and streams. Therefore, this research aimed to evaluate the environmental situation of the spring areas located in rural properties of the sub-basin of the sub-basin of Grande (Corgão) stream, seeking to subsidize its protection or recovery. The methodological procedures adopted included: bibliographic and documental analysis and field work to characterize the natural factors that condition water availability in the sub-basin; inventory and assessment of environmental impacts of human origin in selected spring areas; and application of a questionnaire to identify the socio-environmental perception of rural producers on the use and management of spring áreas. The results show that, due to their influence on the formation of the dominant type of aquifer, the main conditioning factors of water availability in the sub-basin are: geological structure and lithology, climate type, relief pattern, soil type and thickness, and land use. Regarding their classification, 76% of the springs studied are of diffuse flow, without initial accumulation of water. However, several human activities were observed in them, especially deforestation for the implementation of livestock and the use of water for cattle to drink, which has caused environmental impacts such as silting and reduction of the flow of many springs, contamination of their water, and compaction of the ground. As a result of these unplanned actions, 92.0% of the 25 areas of headwaters evaluated fall into class D (Poor) and the remaining two fall into class C (Reasonable), and there are none in class A (Excellent). The questionnaire applied to rural producers revealed a general perception of the importance of environmental conservation in the areas of springs; however, they do not understand how to properly manage these areas. All this indicates the need to implement programs for the protection and conservation of springs by the owners, supported by government agencies and with adequate supervision, as well as environmental education aimed at rural people, to improve their relationship with the environment.

MEMBROS DA BANCA:
Presidente - 130087004 - ALFREDO ZENEN DOMINGUEZ GONZALEZ
Interno - 114163019 - LEILA NALIS PAIVA DA SILVA
Externo à Instituição - ANDERSON RITELA - IFMT