Search

Urban expansion in Petropolis region is due to massive deforestation for housing and other human activities. Deforestation is the main cause ecological imbalances, resulting in: flooding, decrease in porosity and desertification of soil. By AIA semi-qualitative technique analysis it studied possible losses and benefits of urban expansion in the locality, if changes were likely or not of occurrence and their level of impaction. It was observed that the probability of occurrence of damage was much higher than that of benefits. The result corroborates the literature, therefore, has been seen that vegetation plays an important role in water control of the town, and also in the physical and chemical soil. The probability of catastrophic consequences, due to deforestation, is extremely high, and even mid-sized consequences have capacity of environmental impacts that are likely to be irreversible. Deforestation intensifies the consequences of major frequent rainfall in the summer of the State of Rio de Janeiro, so the higher the deforestation, the greater the likelihood of recurrent and intense rainfall events resulting from large. Therefore, it is necessary to control urban sprawl in the region to reduce water environmental impact in the region. [ABSTRACT FROM AUTHOR]

Due to the speedy process of urban and population growth the Aracaju Region has grown quickly, which has generated serious impacts due to irregular occupations, but also mainly by domestic sewage dump, garbage and lack of environmental awareness about the importance of preserving ecosystems. So this study aims to assess the urban growth with the events the degradation of ecosystems of mangroves, being a delicate ecosystem that has suffered from the excessive urban expansion of Aracaju Region. Can be confirm with data collected that much of the sewage network is precarious, situation that comes to repeat even in the capital, leading to the conclusion the need to implement preventive actions and environmental awareness to improve the quality of life of the population and try to minimize environmental damage. [ABSTRACT FROM AUTHOR]