Descrição
This article analyzes some aspects related to water resources on different scales, its social and economical uses, and associated environmental services. It considers the relevance and need for public policies that guarantee water security through mechanisms that enable equitable access either quantity as quality to water, for attending human hydrical activities demand, and associated water activities demand too. It raises issues about the pressure suffered, either by direct capture and commanding uses as a hydrical resource, as input for economic activities or significant changes in environmental systems responsible for refilling or maintenance of these water reservations. In this context, the emerging issues and conflicts of interest in many different orders, create complex scenarios, where business models must adapt to new realities, especially the challenges caused by increased urbanization and the demands required to meet the growing urban human settlements, Periurban and rural areas. Finally, a scenery for Brazil, presenting necessary tools for understanding these hydrical resources potential, as well as an warning for direct and indirect alert signals, for taking necessary demeanors to ensure an effective strategic planning and efficient management of water resources uses.||O presente artigo analisa alguns aspectos relacionados aos recursos hídricos em diferentes escalas, múltiplos usos socioeconômicos e serviços ambientais associados. Discute sua relevância e a necessidade de políticas públicas que garantam segurança hídrica, através de mecanismos que viabilizem acesso equânime da água em quantidade e qualidade, para atender demandas hídricas das atividades humanas e as demandas associadas a seu uso. Levanta questões acerca da pressão sofrida, seja pela captação para utilização direta, seja como recurso hídrico para usos preponderantes, enquanto insumo para atividades econômicas ou por alterações significativas nos sistemas ambientais responsáveis pela recarga ou manutenção destes estoques. Neste contexto, emergem problemas e conflitos de interesse das mais variadas ordens, criando cenários complexos, nos quais os modelos de gestão precisam adaptar-se às novas realidades, especialmente frente aos desafios provocados pela intensa urbanização e às demandas necessárias para suprir as crescentes concentrações humanas urbanas, periurbanas e rurais. Finaliza-se com um cenário para o Brasil, apresentando subsídios para a compreensão do potencial destes recursos, bem como uma chamada aos sinais de alerta diretos e indiretos, para que sejam tomadas medidas visando a um necessário planejamento estratégico eficaz e eficiente na gestão dos usos dos recursos hídricos.
Abstract
THE ISSUE OF WATER RESOURCES AND ITS PROSPECTS FOR BRAZIL
This article analyzes some aspects related to water resources on different scales, its social and economical uses, and associated environmental services. It considers the relevance and need for public policies that guarantee water security through mechanisms that enable equitable access either quantity as quality to water, for attending human hydrical activities demand, and associated water activities demand too. It raises issues about the pressure suffered, either by direct capture and commanding uses as a hydrical resource, as input for economic activities or significant changes in environmental systems responsible for refilling or maintenance of these water reservations. In this context, the emerging issues and conflicts of interest in many different orders, create complex scenarios, where business models must adapt to new realities, especially the challenges caused by increased urbanization and the demands required to meet the growing urban human settlements, Periurban and rural areas. Finally, a scenery for Brazil, presenting necessary tools for understanding these hydrical resources potential, as well as an warning for direct and indirect alert signals, for taking necessary demeanors to ensure an effective strategic planning and efficient management of water resources uses.
