caracterização ambiental e hidrológa da bacia do córrego ... - Index of

ABSTRACT
VENTURA, R. M. G. Environmental characterization and hydrological of the
basian Stream Barbado in Cuiaba-MT. Cuiabá - MT 2010. 112f. Dissertação
(Mestrado em Engenharia de Edificações e Ambiental) – Programa de Pós-
Graduação em Engenharia de Edificações e Ambiental, UFMT.
The increasing urbanization without the had planning of the cities propitiates a
process of disordered occupation that results, in general, in invasions of areas of
ambient protection and risk, with: burial of springs, waterproofing of green areas,
solid degradation of the edges and the bodies of water through the launching of
effluent liquids and residues. Whose consequence provoke alterations in the
natural water regimen of the basins and deterioration of the quality of waters.
These aspects if have become excellent in the studies of urban basins, as it is the
case, of the basin of the Bearded stream that is inserted in the urban perimeter of
Cuiabá, MT. Structural solutions that exist just transfer the problem of disposing
to the mouth, creating pieces of critical points that come to overflow in heavy
rains. With the objective to characterize ambiently and to analyze the hydrological
elements of the basin, hypotheses had been considered as: if the physiography is
inclined the flood; if the occupation dynamics is adjusted; if the profile of the
occupants contributes for the degradation of the basian stream; if viability exists
technique for application of measures of control in the basin; if it is possible to
work with monitoring of quota and esteem of outflow for the verified quota; e if
has as to relate the rain intensity with the outflow. To test these hypotheses, a
section of the course of water was monitored, treated digital images and registers
of socioeconomic and ambient had been analyzed. The study it resulted in: the
stage discharge curve section, and hydrographs, hietograms, physiographic
features, use map and occupation of land, estimate of sanitation coverage and
profile of the occupants. The discharge curve allowed to relate the quotas
registered in linigraph with the calculated outflow, producing hydrographs that
illustrate water answers in the section of study for a rain event. The physiographic
not adds characteristics of basins prone to flooding, however the format narrow
and elongated provides a fast flow which combined with an impermeable area of
57.4% maximizes flood peaks. In classification of satellite pictures of the year
2009, it was estimated that 16.64% of basin area is composed of masonry, 26.16%
concrete and 14.6% floor, areas that contribute to runoff. This study sample that
the impacts of the current picture can be minimized, and some reversible ones,
through the recovery of the green areas, structural improvements in the sanitation
covering, interventions and work of ambient education with the inhabitants. The
results of the hydrology survey can assist in projects of local workmanships that
can brighten up the impact of the full ones and esteem the interference of
mitigation measures in the water body.
Key words: Urban Hydrology, determination of flow, stream Barbado.
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