Varíaveis Hidrossedimentológicas E Níveis De Degradação Ambiental a Partir De Protocolos De Avaliação Rápida De Rios, Entre a Baía Da Palha E O Sadao No Corredor Fluvial Do Rio Paraguai

Content Provider	Semantic Scholar
Author	Silva, José Lourenço Alves Da Souza, Célia Alves De
Copyright Year	2019
Abstract	The Paraguay River is one of the main modeling agents of the Pantanal environment, its hydromorphological changes are linked to its water regime its river dynamics and anthropic activities. The present study aimed to evaluate the hydrosedimentological aspects and the level of environmental degradation from the application of protocols for the rapid evaluation of rivers - Pars, between the Bay of Palha and Sadao in the river corridor Paraguay. For the development of the research was used some steps. Office work, fieldwork and laboratory work. At the cabinet stage, bibliographical research, cross-sectional profiles and data organization were carried out in the field work, observation; implementation of rapid river assessment protocols; bathymetry and flow velocity, water and sediment sample collection. In the laboratory analysis Analyzes were carried out: granulometric (total dispersion and sieving method), evaporation method (sediment concentration). The Rapid Assessment Protocols indicated regular situations for the left margin of sections 1 and 5. In the cross sections on the Paraguay River, flow velocity ranged from 0.30 to 0.71 m / s, the mean depth of the water sheet between 3.5 to 8.16 m, the flow rate was between 141.90 to 865.57 m³ / s, the solid discharge varied from 245.20 to 1496, t / day. In the sections located in Palha bay flow velocity ranged from 0.09 to 0.97 m / s, the mean depth of the water slide was between 0.46 and 7.06 m, the flow rate was between 0.29 and 673 , 95 m³ / s, and the solid discharge ranged from 53.74 to 2.329,17 t / day. The anthropic use directly influenced changes in the study area in question, but the dynamics of changes in the Paraguay River occur naturally disfiguring their features through sedimentological depositions.
Starting Page	35448
Ending Page	35448
Page Count	1
File Format	PDF HTM / HTML
DOI	10.12957/geouerj.2019.35448
Alternate Webpage(s)	https://www.e-publicacoes.uerj.br/index.php/geouerj/article/viewFile/35448/31617
Alternate Webpage(s)	https://doi.org/10.12957/geouerj.2019.35448
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article