The relationship among water quality and land cover on a watershed influenced by human activities in the cerrado of minas gerais state
| Autor: | Frederico Borges Machado, Andrezza Marques Ferreira, Tássio Franchi, Renato Carneiro Fernandes da Silva, Leonardo Campos de Assis |
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| Jazyk: | English<br />Portuguese |
| Rok vydání: | 2016 |
| Předmět: | |
| Zdroj: | Revista de Ciências Agroambientais, Vol 14, Iss 1, Pp 28-36 (2016) |
| Druh dokumentu: | article |
| ISSN: | 1679-1509 1677-6062 |
| Popis: | The objective was to analyze the surface water quality on the highlands of the Conquistinha river basin, an area influenced by human activities mostly due to proximity of the Uberaba city boundaries through integrated water resources supported on geoprocessing. The water sampling campaign occurred by month, from October 2012 to September 2013 at three surface water spots strategically located to detect the human influence. Remote sensing technique of image classification process was used to produce the Land Use/Land Cover (LULC) map highlighting five categories on July 2011: 42.07% on crops, 29.97% on pasture, 20.17 on human activity, 7.7% on forest and 0.09% on water. The Water Quality Index (WQI) was used to evaluate its categorize water quality. All water quality results, by spatial and time approaches, indicate bad and very bad WQI according to Minas Gerais Institute to Water Management. Integrated analysis of land cover and water parameters suggest the human presence influences on water quality worsening. Urban planning about the city growing direction must be done with care over this particular region once the environmental quality especially on water resources is now compromised. |
| Databáze: | Directory of Open Access Journals |
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