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| LIMA,RAFAEL P.C.; SILVA,DEMETRIUS D. DA; MOREIRA,MICHEL C.; PASSOS,JÉSSICA B.M.C.; COELHO,CLÍVIA D.; ELESBON,ABRAHÃO A.A.. |
| Abstract: In order to characterize the occurrence and intensity of droughts in the Doce River Basin, as well as to develop a system for its classification, four different drought indexes were evaluated: Percent of Normal Precipitation (PNP), Deciles Method (DM), Rainfall Anomaly Index (RAI) and Standardized Precipitation Index (SPI). The indices were calculated annually, based on precipitation data from 89 rainfall stations of the Brazilian National Water Agency (ANA). Nine analysis units (AUs) were determined in the basin and the Thiessen Polygons method was used to obtain the average precipitation in the respective drainage areas. The indices were calculated for each AU and then related to the drought intensity classes. An overall classification of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Climatic condition; Doce river; Precipitation; Rainfall season; River basin. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000100852 |
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| CAMPOS,JASMINE A.; AIRES,UILSON R.V.; SILVA,DEMETRIUS D. DA; CALIJURI,MARIA LÚCIA. |
| Abstract: The environmental fragility analysis evaluates the susceptibility of an environment to degradation. Thus, the goals of this work are to analyze and map the environmental fragility of the Lapa Grande State Park (PELG), Brazil, and its buffer zone (ZA) and also quantify the changes in the vegetation cover before and after the implementation of the PELG. The environmental fragility was evaluated through multicriteria analysis using the factors: slope, geology, pedology and land use and land cover. The changes in the high vigor vegetation cover were determined from the normalized difference vegetation index (NDVI) for 1996, 2006 and 2016. It was verified that the central-east and northeast regions of the PELG presented the greatest environmental... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Environmental fragility; Environmental management; Lapa Grande park; Multicriteria analysis. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000300503 |
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