Integração entre curvas de permanência de quantidade e qualidade da água como uma ferramenta para a gestão eficiente dos recursos hídricos

Cunha, Daví Gasparini Fernandes; Calijuri, Maria do Carmo; Mendiondo, Eduardo Mário

doi:10.1590/s1413-41522012000400003

Cited by 14 publications

(14 citation statements)

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“…Using field campaigns (episodic monitoring) and official database (systematic monitoring) from agencies engaged in HMP at PCJ committees, i.e. CETESB, DAEE, SABESP, INMET, ANA, CODEAGRO, CEMADEN, human impacts on quali-quantitative freshwater regimes are verified [14] [34] [35]. Furthermore, possible positive impacts of Water-PES project's conservation actions are viable to screen explicitly through HMP.…”

Section: Methodsmentioning

confidence: 99%

“…Spatial monitoring (nested catchment experiment) For the experimental catchments, monitoring quali-quantitative control sites of water yield is selected through Nested Catchment Experiment method (NCE) [41] We also suggest using flow-load duration curves in the monitoring of the Water Producer/PCJ project, to describe the pollution loads according to flow rates, facilitating to visualize the quali-quantitative natural behavior of freshwater resources [14] [35] [48]. Flow and load duration curves demonstrate changes in land use or climate in the watersheds [13].…”

Section: Types Of Monitoringmentioning

confidence: 99%

“…These processes affect biodiversity and primary production, and define the river regime, environmental flows and hydrologic ecosystem services [13]. Specifically for Water-PES, the potential provision of these services depends on the water-balance equilibrium of flows and pollution loads [14]. On the other hand, Water-PES are dependent on the relationship between availability and demand, variable according to both 1) natural fluctuations or induced by the impacts of human activities, and 2) functional and distribution conditions of the ecosystems in the watersheds.…”

Section: Introductionmentioning

confidence: 99%

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Hydrologic Monitoring Plan of the Brazilian Water Producer/PCJ Project

Taffarello¹,

Guimarães²,

Lombardi³

et al. 2016

JEP

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Both Ecosystem-based Adaptation (EbA) and Payment for Ecosystem Services (PES) have a wide range of strategies that include different economic instruments for nature conservation. Although the generation and maintenance of payment for hydrologic ecosystem services (Water-PES) is expanding in Brazil, there are difficulties in the implementation of projects. Due to the complexity and non-linearity of the hydrological processes, also affecting both EbA and Water-PES goals, monitoring qualiquantitative aspects of streams have been here addressed as a useful management tool. This study presents the Hydrological Monitoring Plan (HMP) of the Water Producer/PCJ project, operating between 2009-2014, in order to: 1) evaluate the impact of project actions under water quali-quantitative aspects; and 2) promote the incorporation of HMP's elements in water resources management. HMP of the Water Producer/PCJ project has been implemented following the conditions for efficiency (baseline, long-term scale compatible with the actions of the project, in the experimental and reference watersheds). In addition, HMP is being implemented from upstream to downstream in catchments with areas ranging from 17 to 130 km 2 . This proposal favors the quantification and valuation of hydrologic services that could be assessed by ecohydrologic monitoring and modeling. Thus, we look forward to the consolidation of the Brazilian information system of water resources, the reduction of modeling uncertainties and integrated assessment of the consequences of landuse/land-cover change that strongly impact goals of EbA and Water-PES initiatives.

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Section: Methodsmentioning

confidence: 99%

Section: Types Of Monitoringmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Hydrologic Monitoring Plan of the Brazilian Water Producer/PCJ Project

Taffarello¹,

Guimarães²,

Lombardi³

et al. 2016

JEP

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“…Outros estudos têm produzido essas curvas com dados de qualidade da água em rios (OLIVEIRA et al, 2011;MENDIONDO, 2012) e reservatórios (CUNHA et al, 2011). Alguns trabalhos ainda avaliaram o risco percentual de incompatibilidade dos resultados de monitoramento com padrões de qualidade (ZHANG; ARHONDITSIS, 2008;CALIJURI, 2010).…”

Section: Introductionunclassified

Curvas de permanência de qualidade da água como subsídio para o enquadramento de corpos d'água a partir de modelagem matemática em regime não permanente

Ferreira

Fernandes

Kaviski

2016

RBRH

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Este é um artigo publicado em acesso aberto (Open Access) sob a licença Creative Commons Attribution, que permite uso, distribuição e reprodução em qualquer meio, sem restrições desde que o trabalho original seja corretamente citado. RESUMOModelos matemáticos de qualidade de água têm sido utilizados como ferramentas para o planejamento e a gestão de recursos hídricos em diversos países. Em geral, em rios, as análises são baseadas em simulações considerando condições de escoamento de regime permanente. Entretanto, bacias urbanas apresentam uma intensa dinâmica, consequente de mecanismos de uso e ocupação do solo, capaz de induzir processos de poluição que requerem uma análise que contemple aspectos físicos, químicos e biológicos. A abordagem em estado não-permanente permite descrever de forma mais realista estas características, e associar de maneira consistente as interações de qualidade e quantidade de água, em função da representação hidrodinâmica de um sistema. Esta pesquisa contribui para esse entendimento usando como estudo de caso o rio Iguaçu, localizado na região metropolitana de Curitiba, ao analisar potenciais impactos de avaliações de qualidade baseadas em uma comparação de condições de estado permanente e não-permanente como forma de subsidiar elementos para a gestão do uso da água. O modelo aqui proposto (SIHQUAL), desenvolvido em módulos tradicionais, utiliza métodos de diferenças finitas explícitas para solução das equações de Saint-Venant integradas com a equação de transporte de massa, para demanda bioquímica de oxigênio (DBO) e oxigênio dissolvido (OD). Para a análise de qualidade da água utilizou-se do conceito de curva de permanência de qualidade da água. Observou-se principalmente que modelos em estado transiente oferecem maior flexibilidade e uma distinta perspectiva para o gerenciamento, em especial quanto à aplicação dos instrumentos de gestão de recursos hídricos, como o enquadramento.Palavras-chave: Modelo de qualidade de água; Equações de Saint-Venant; Gestão de recursos hídricos; Rio Iguaçu. ABSTRACTWater quality models have been used as tools for planning and water resources management in many countries. Generally, in rivers the simulations are based on flow conditions under steady regime. However, urbanized basins have an intense dynamics, the consequence of land use and soil occupation mechanisms, able to induce pollution processes that require representation of physical, chemical and biological processes. The unsteady regime approach provides a better description of these characteristics, and a more consistent association of water quality and quantity interactions, based on a hydrodynamic representation of the system. This paper aims to contribute to this understanding using as case study the Iguaçu river, located in the metropolitan region of Curitiba, analyzing possible impacts of quality evaluations based on an analogy between steady and unsteady regime conditions as a manner of supporting water management elements. The proposed model (SIHQUAL), developed in traditional module...

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“…For instance, the LDCs can easily portray the streamflow classes in disagreement with the regulations, and therefore, shed light on best management practices to improve water quality [14,15]. In that context, pollution events related to shorter permanence (i.e., high flows) are usually associated with diffuse pollution sources, whereas events related to higher permanence (i.e., low flows) are commonly linked to point source pollution [11,13,16].In Brazil, there have been some attempts to use LDCs, but the frequent non-synchronous streamflow and water quality sampling represented a limitation [17][18][19][20]. For instance, FDCs were developed for rivers in the state of São Paulo, Minas Gerais and Paraná (SP) but considered the monthly average of streamflow in the estimation of the load [18,20].…”

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confidence: 99%

A New Approach to Use Load Duration Curves to Evaluate Water Quality: A Study in the Doce River Basin, Brazil

Serrano

Borges

Pruski

et al. 2020

Water

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Although water availability depends both on qualitative and quantitative aspects, most studies focus only on one of these. Therefore, the goal here is to relate water quality and quantity with the construction of Load Duration Curves (LDC) and to estimate E. coli load patterns in different flow conditions, seasons, and positions of two sub-basins of the Doce watershed (Brazil): Piracicaba and Piranga. A novel methodology is proposed in which the Burr XII distribution is adjusted to the LDC to compare all observed loads to their respective Total Maximum Daily Load (TMDL), allowing the estimation of the relative difference (RD) between these. Higher values of RD were observed for low flows for the Piracicaba basin, more urbanized, where point sources of pollution are the primary concern, reaching up to 99% of needed load reduction. In the Piranga basin, more agricultural, there was a broader RD variation, from 9% to 97% load reduction needed, which is an evidence of point sources of pollution combined with non-point sources. The new methodology can be used to estimate the load reduction of any pollutant and can be used by environmental agencies to identify effective practices to minimize and control pollution in different locations of the basins.

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Integração entre curvas de permanência de quantidade e qualidade da água como uma ferramenta para a gestão eficiente dos recursos hídricos

Cited by 14 publications

References 30 publications

Hydrologic Monitoring Plan of the Brazilian Water Producer/PCJ Project

Hydrologic Monitoring Plan of the Brazilian Water Producer/PCJ Project

Curvas de permanência de qualidade da água como subsídio para o enquadramento de corpos d'água a partir de modelagem matemática em regime não permanente

A New Approach to Use Load Duration Curves to Evaluate Water Quality: A Study in the Doce River Basin, Brazil

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