Environmental assessment using landscape analysis methodology: the case of the Jundiaí Mirim river basin, Southeast Brazil

Abstract

Environmental damage and impacts from anthropogenic activities has led to the need for methodological development for its evaluation to subsidize environmental and human health management models. In this context, landscape analysis is a technique that incorporates a set of methods and procedures for understanding and explaining the structure, properties, indexes and parameters influenced by the occupation and use of the land. The main goal of this research was to present an environmental assessment methodology to represent the landscape, in simplified form, in order to identify environmental damage and impacts, to establish criteria and to propose management models for the Jundiaí Mirim river basin, São Paulo state, Brazil. This approach integrates fundamental methodological procedures through compartmentation, stratification, highlighted elements, characterization and evaluation of the landscape, considering physical, biotic and anthropogenic indicators. The results show its potential for educational, research and extension proposals because of its simple and expeditious character. Therefore it was possible to obtain a landscape efficiency index, clear and objective, that promoted the understanding of the landscape. As guidelines for the river basin management we highlighted soil conservation plans, solid waste management and sanitation in urban areas, and land use planning to protect the supply reservoir of Jundiaí city.

Environmental impacts of inter-basin water transfer on water quality in the jundiaí-mirim river, south-east brazil

“…The behaviour of Fe was similar to that of Al, with inputs of this metal from the Atibaia River during SSIWT. Higher Fe concentrations were observed at sites P3 and P4, possibly due to anthropic influence (degradation of the river, soils and riparian forest), which contributed to transporting sediments to the river, as observed previously ( [20]).…”

“…SSIWT raised the average turbidity by 219%, reflecting the cumulative effect of the increased flow along the Jundiaí-Mirim River, despite the lower turbidity observed in the water transferred from the Atibaia River (6.6 UNT). During SSIWT, there was an increase in around 1,400% from P1-Y to P4-Y, during the SSIWT, where Medeiros et al [20] reported undermining of the margins. From P4-Y to P5-Y, the turbidity decreased by 98.4%, because the reservoir behaved as a sediment decanter.…”

“…Together, these municipalities possess a population of 505,000 inhabitants, of whom 80% live in Jundiaí city ( [18]). Different classes of land use and occupation are found in the basin, with the presence of allotments, urbanization, mining and farming activities ( [17,19,20]).…”

Interdisciplinaridade no Programa de Pós-Graduação em Ciências Ambientais do Instituto de Ciência e Tecnologia de Sorocaba – Unesp: experiências de gestão

“…Da mesma forma, na pesquisa, o projeto estruturante permitiu a integração das linhas de investigação em Recursos Hídricos e Recuperação Ambiental (BEGUELLI et al, 2015;MORAES;MACHADO et al, 2018;MEDEIROS et al, 2016), Modelagem ambiental e Recursos Hídricos (FRANÇA et al, 2014) e Modelagem Ambiental e Recuperação Ambiental (BRESSANE; ROVEDA; ROVEDA et al, 2015). Acrescente-se o desenvolvimento de atividades de integração entre as Ciências Sociais e as Ambientais, como as relacionadas à percepção ambiental (FENGLER; MEDEIROS; RIBEIRO et al, 2016), à abordagem construtivista (BRESSANE; MEDEIROS; RIBEIRO et al, 2015), à problematização (BRESSANE; RIBEIRO; MEDEIROS, 2015) e à aprendizagem por descoberta, como estratégias pedagógicas para promover a interdisciplinaridade nas Ciências Ambientais.…”

“…Em 2013 e 2014, foram apresentados um total de 63 trabalhos, os quais foram publicados na forma de resumos expandidos. Tais resumos foram posteriormente desenvolvidos e se tornaram artigos publicados em periódicos científicos de abrangência nacional e internacional (BEGUELLI et al, 2015;MEDEIROS;RIBEIRO et al, 2016;FRANÇA et al, 2014;MACHADO et al, 2018;MEDEIROS et al, 2016).…”