Article
Spanish
ID: <
oai:doaj.org/article:dac94deb9eed43a3ad5f4f76bd89c44b>
·
DOI: <
10.22490/21456453.2067>
Abstract
Changes in land use influence the landscape of a basin. Changes caused by anthropic activities have an impact on their natural resources. These can be identified to generate future mitigations through land cover monitoring. This work presents a spatio-temporal analysis of the land use dynamics of the river Juqueri basin, based on the classification of satellite images of LANDSAT sensors 5, 7 and 8 of the years 1986, 1992, 2003, 2011 and 2016, using highest-plausibility methodologies, map algebra and digital processing, using ArcGIS 10.3 software. The results showed a negative environmental transition, with the progressive substitution of vegetation areas for pastures, agriculture and exposed soils. As well as rapid growth of urban areas. The predominant class is native forest due to the existence of the Brazilian Law on the Protection of Manantials (State Law 9.866/97) which has helped in the conservation of this class. Unfortunately, after the passage of time, forests were fragmented and decreased by 15.88 % and the urban area increased by 13.49 %, and the area of water resources decreased by 0.42 % when compared to the values for the years 1986 and 2016. According to the anthropic transformation index (ATI), the basin is classified as regularly degraded, showing strong pressure and environmental degradation on its water resources.