THE East Atlantic Hydrographic Basin corresponds to one of the 12 hydrographic regions of Brazil.
It is formed by several sub-basins of which the following stand out: Jequitinhonha Basin, Vaza-Barris Basin, Contas, Mucuri Basin, Itaúnas Basin, São Mateus Basin, Itapicuru Basin, Paraguaçu Basin and Rio Basin Brown.
Characteristics and Importance
With an approximate extension of 388,000 km², (equivalent to 4.5% of the Brazilian territory), the Atlantic Basin East is located in the northeast (Sergipe and Bahia) and southeast (Minas Gerais and Espírito Santo) regions of the Brazil.
Of the states it comprises, it occupies most of Bahia with 69%, 4% in the state of Sergipe, 26% in Minas Gerais and only 1% in the state of Espírito Santo.
The East Atlantic Basin is located in a region of tropical weather (hot and humid) and depending on the location it can be super-humid, humid, semi-humid and semi-arid.
Thus, the place has low thermal range, that is, small variation between the maximum and the minimum temperature (between 22°C and 32°C approximately).
The biomes present in the Basin are: a Atlantic forest, a Caatinga, the Mangroves and a small part of the thick.
With the increase in urbanization, wood exploitation, as well as mining, livestock and agriculture, the region has presented several environmental problems, especially with siltation and contamination of river waters.
The East Atlantic Basin has great socioeconomic importance for the region from the supply of municipalities and irrigation for agriculture.
As such, it covers two northeastern capitals (Aracaju and Salvador), which comprise about 526 municipalities with a total population of approximately 15 thousand inhabitants (about 7.9% of the population of the Brazil).
Read about the Hydrography of Brazil.
Main Rivers
The main rivers that make up the East Atlantic Hydrographic Basin are:
- River Accounts
- Rio Pardo
- Rio Preto
- Mucuri River
- Rio Itanhem
- Itapicuru River
- river salinas
- Paraguay River
- Jequitinhonha River
- São Pedro river
- São Francisco River
- São Miguel River
- São Mateus River
- Itaúnas River
- Vaza-Barris River
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