Melhoria da qualidade da água de rios urbanos: novos paradigmas a explorar – Bacia hidrográfica do rio Pinheiros em São Paulo

Pereira, Maria Cristina Santana; Martins, José Rodolfo Scarati; Nogueira, Fábio Ferreira; Magalhães, Ariel Ali Bento; Silva, Fábio Paiva da

doi:10.1590/s1413-415220190272

Cited by 6 publications

(5 citation statements)

References 24 publications

(30 reference statements)

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“…At the same time, climate change adds a new level of uncertainty regarding the supply of drinking water and the main sectors of water use, such as agriculture, industry and energy (Ruffato-Ferreira, 2017). Change in the quality and quantity of water available projections become increasingly uncertain and scarcity increases continuously (Pereira et al, 2021). Companies have found themselves in situations in which they are more vulnerable to a wide range of risks associated with inadequate water supply in quantity and/or quality (Galdino et al, 2016).…”

Section: Integration Between Technological Tools and Water Resource M...mentioning

confidence: 99%

“…Water is a valuable natural resource, of paramount importance for life maintenance (Pereira et al, 2021), and is widely found throughout the planet, although only 2.6% is considered fit for human consumption. Lakes, rivers and reservoirs are the main sources of these resources and are directly linked in the water dynamics linked to the watershed (Sousa et al 2016).…”

Section: Introductionmentioning

confidence: 99%

“…The land use and land change studies are key for identifying trends of anthropic activities in a watershed (Pereira et al, 2021). The model of social and economic development in the watershed has direct influences in land use changes, being responsible for alterations in the landscape and the dynamics of hydrological processes (Fernandes; Collares;Corteletti, 2021).…”

Section: Introductionmentioning

confidence: 99%

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Technology and policy integration: modelling morphometric characterization and land use change using artificial neural networks in the western amazon

Pereira

Peixoto

Cesconetto

et al. 2022

Rev. Bras. Geog. Fis.

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This study aims to analyze in an integrated way the application of morphometric indices elaborated in geographic information systems and aspects of environmental management of water resources for the Micro Watershed of Garças River, located in the state of Rondônia. It used images with Digital Elevation Models (DEM) obtained by TOPODATA and Landsat 8 images obtained by INPE (the Brazilian Institute for Space Research). Subsequently, with the aid of the QGIS 2.18.0 software, the watershed was delimited, the NDVI and the slope were calculated and, based on initial data, morphometric characteristics were calculated. The watershed has an area of 1621.101 km², perimeter of 438.661 km and length of 82.04 km, with altimetry ranging from 77.8 to 177.8 meters, and form factor of 0.24, which characterizes a rectangular shape, indicating that the basin has a low propensity for floods. NDVI ranged from 0.187 to 0.49, and it has a coverage area of native vegetation superior to that of anthropized areas. Thus, the watershed morphometric study, together with data on use and occupation, provide essential elements for the planning of actions to be carried out in the watershed.

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Section: Integration Between Technological Tools and Water Resource M...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Technology and policy integration: modelling morphometric characterization and land use change using artificial neural networks in the western amazon

Pereira

Peixoto

Cesconetto

et al. 2022

Rev. Bras. Geog. Fis.

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“…As cargas pontuais tem sua origem, constituição e quantidade conhecidas ou podem ser estimadas a sua origem está associada ao lançamento indevido de efluentes industriais ou domésticos, devido à ausência de redes coletoras e de transporte de esgoto e os despejos clandestinos e irregulares. As cargas de origem difusa, ou poluição difusa, é constituída pelo material carreado no escoamento superficial durante as chuvas que chega aos corpos hídricos, causando impacto ao ambiente (Pereira et al, 2021).…”

Section: Introductionunclassified

Caracterização físico-química da água de um rio urbano amazônico, Capanema, Pará, Brasil

Silva

Gutjahr

Braga

2021

RSD

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A ocupação das margens dos rios urbanos impacta os ambientes aquáticos através do lançamento de efluentes e resíduos, remoção da vegetação ciliar e mudanças na configuração dos rios. Com isto, este trabalho objetivou realizar a caracterização físico-química do rio Ouricurí em Capanema, considerando a área da nascente, perímetro urbano e foz, observando a influência da sazonalidade e do crescimento urbano. Foram avaliados a Temperatura (T), pH, Oxigênio dissolvido (OD) e Condutividade elétrica (CE). A temperatura foi mais elevada na área urbana (27.81ºC) na estação menos chuvosa (EMC) e 29.26ºC na estação chuvosa (EC), influenciada pela remoção da mata ciliar. A área da nascente apresentou pH ácido (N1 = 4.91 e 4.27 nas EMC e EC), influenciado pelo caráter lêntico dos pontos de coleta e o aporte de matéria orgânica, o pH foi básico na área urbana devido a concentração de efluentes domésticos no rio. O teor de OD foi maior na região da nascente, (N3 = 3,10 mg/L na EMC e 4,92 mg/L na EC), o parâmetro decresceu nas áreas urbana e foz, influenciado pela temperatura e a decomposição da matéria orgânica. A nascente apresentou a menor CE (N1 = 12,7 µS cm-¹ e 25,3 µS cm-¹ para EMC e EC), e a foz níveis mais elevados, a CE é influenciada pelo aporte de efluentes não tratados. Verificou-se que a ocupação das margens do rio Ouricurí prejudica o meio ambiente aquático urbano, através de mudanças no meio físico, que alteram as variáveis físico-químicas indicativas da qualidade da água.

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“…The areas occupied by temporary crops and urbanized areas correspond to regions that presented moderate to high potential of generation of diffuse pollution, exerting high pressure on water resources. A signi cant factor in this Several studies carried out in different locations show that diffuse pollution contributes with a signi cant portion to the total pollutant load that is released into urban water bodies(Pereira et al, 2021). Yet, in rural areas, a large part of diffuse pollution is derived from fertilizers, livestock, and uncollected domestic sewage, which are transported through water runoff and intrinsically associated with soil characteristics, topography, and land management(Ritter & Shirmohammadi, 2000;Chen et al, 2018).…”

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confidence: 99%

Application of spatial environmental indicators in the assessment of degradation potential of water resources in water basins

Arantes

Sacramento

et al. 2022

Preprint

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Changes in land use have been occurring in a continuous and disorderly way in recent decades due to rapid population growth and the growing demand for food. These constant changes result in a series of deleterious effects to the environment, especially to water resources, significantly changing their availability and quality. This study aims to evaluate the degradation potential of watersheds through an evaluation of some environmental indicators using arithmetic means to construct an index called in this research "Index of Potential Environmental Degradation” (IPED). To form the IPED, the hydrographic sub-basins of the Sorocabuçu River, located in the central west of the State of São Paulo, Brazil, comprised the study area. The results showed that most hydrographic sub-basins, that is, eight units, present degradation values ranging from moderate to very high, resulting mainly from low conservation values of forests plus a use destined to the planting of temporary cultures depending on good physical conditions. On the other hand, only one sub-basin showed a low degradation value. The methodology used for the development of the IPED is easy to apply and an effective tool for environmental analyses. It may contribute to studies and forms of planning and land use management aiming the conservation of water resources and protected areas and reduction of degradation.

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Melhoria da qualidade da água de rios urbanos: novos paradigmas a explorar – Bacia hidrográfica do rio Pinheiros em São Paulo

Cited by 6 publications

References 24 publications

Technology and policy integration: modelling morphometric characterization and land use change using artificial neural networks in the western amazon

Technology and policy integration: modelling morphometric characterization and land use change using artificial neural networks in the western amazon

Caracterização físico-química da água de um rio urbano amazônico, Capanema, Pará, Brasil

Application of spatial environmental indicators in the assessment of degradation potential of water resources in water basins

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