| Revista: | Anais da Academia Brasileira de Ciencias |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000420098 |
| ISSN: | 0001-3765 |
| Autores: | Silva, Marcio S. da1 Guimaraes, Jose Tasso Felix1 Souza-Filho, Pedro Walfir Martins e2 Nascimento-Junior, Wilson1 Sahoo, Prafulla K1 Costa, Francisco Ribeiro da3 Silva-Junior, Renato O4 Rodrigues, Tarcísio M5 Costa, Marlene F. da5 |
| Instituciones: | 1Instituto Tecnologico Vale, Belem, Para. Brasil 2Universidade Federal do Para, Programa de Pos-Graduacao em Geologia e Geoquimica, Belem, Para. Brasil 3Universidade Federal do Sul e Sudeste do Para, Campus Universitario de Marabá, Maraba, Para. Brasil 4Universidade Federal do Para, Programa de Pos-graduacao em Ciencias Ambientais, Belem, Para. Brasil 5Gerencia de Meio Ambiente - Minas de Carajás, Departamento de Ferrosos Norte, Parauapebas, Para. Brasil |
| Año: | 2018 |
| Periodo: | Jun |
| Volumen: | 90 |
| Número: | 2 |
| Paginación: | 1309-1325 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Analítico |
| Resumen en inglés | High-resolution satellite images, digital elevation models, bathymetric and sedimentological surveys coupled with statistical analysis were used to understand the physical environment and discuss their influence on water quality of the five upland lakes of Serra Sul dos Carajás, southeast Amazonia. The lakes have midaltitude ranges (elevation), very small (catchment) and shallow to very shallow (central basins). Based on the length, area and volume, Violão and TI (Três Irmãs)-3 lakes may present large vertical movements of the water due to wind action and weakly stratified waters. Trophic conditions based on depth and shore development (Ld ) parameters must be used with caution, since Amendoim Lake is relatively deep, but it is oligotrophic to ultra-oligotrophic. Ld values suggest that the lakes are circular to subcircular and are likely formed by solution process, as also suggested by volume development. TI-2 Lake is only presenting convex central basin and has highest dynamic ratio (DR), thus it may have high sedimentation and erosion rates. Based on the relationship between studied parameters, morphometric index and DR likely influence temperature and dissolved oxygen of waters of TI-2 Lake due to its depth profile and wind-induced surface mixing. Nevertheless, water quality parameters are controlled by catchment characteristics of the lakes |
| Disciplinas: | Geociencias, Geografía, Biología |
| Palabras clave: | Hidrología, Geografía física, Ecología, Costra laterítica, Lagos, Limnología, Geomorfología, Región amazónica, Carajás |
| Keyword: | Hydrology, Physical geography, Ecology, Lateritic crust, Lakes, Limnology, Geomorphology, Amazon region, Carajas |
| Texto completo: | Texto completo (Ver PDF) |
