%0 Journal Article
%T Integra  o entre curvas de perman¨ºncia de quantidade e qualidade da ¨¢gua como uma ferramenta para a gest o eficiente dos recursos h¨ªdricos Integration between cumulative frequency curves for water quantity and quality as a tool for effective water resources management
%A Davi Gasparini Fernandes Cunha
%A Maria do Carmo Calijuri
%A Eduardo Mario Mendiondo
%J Engenharia Sanitaria e Ambiental
%D 2012
%I Brazilian Association of Sanitary and Environmental Engineering
%X A garantia dos usos m¨²ltiplos da ¨¢gua, dos servi os ambientais e do equil¨ªbrio ecol¨®gico depende de uma combina  o adequada entre aspectos quantitativos e qualitativos dos rios. A presente pesquisa descreve aplica  es de uma nova abordagem das curvas de perman¨ºncia de vaz es, que foram associadas a curvas de frequ¨ºncia acumulada de qualidade da ¨¢gua. Foram compilados dados de f¨®sforo total (2005 a 2009) e vaz o m¨¦dia mensal (1959 a 2003) dos rios Para¨ªba do Sul e Sorocaba para ilustrar o conceito. A integra  o entre as curvas de quantidade e qualidade se mostrou desej¨¢vel por oferecer subs¨ªdios a concess es de outorga, ¨¤ cobran a pelo uso da ¨¢gua, ao monitoramento ambiental e ao enquadramento dos cursos de ¨¢gua. Outro aspecto positivo ¨¦ que essas curvas podem incorporar varia  es no clima e no uso e ocupa  o do solo, o que permite o estabelecimento de cen¨¢rios ambientais. The security of the different water uses, environmental services and ecological balance depends upon a well-weighted combination between quantitative and qualitative aspects in rivers. This research describes applications of a new approach of the frequency curves for discharge, which were associated with frequency curves for water quality. Data on total phosphorus (2005 to 2009) and monthly average flow (1959 to 2003) from the Para¨ªba do Sul and Sorocaba Rivers were compiled to further illustrate the concept. The integration between the curves of water quantity and quality was considered desirable as it can aid in the planning of water concessions, charging for water uses, environmental monitoring and establishment of water quality standards and framework. Moreover, these curves can accommodate variations in climate and land use, allowing the establishment of environmental scenarios
%K curvas de frequ¨ºncia acumulada
%K enquadramento dos corpos de ¨¢gua
%K gerenciamento dos recursos h¨ªdricos
%K rios
%K servi os ambientais
%K cumulative frequency curves
%K legal framework for water bodies
%K water resources management
%K rivers
%K environmental services
%U http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-41522012000400003