Recursos hídricos no futuro: problemas e soluções

Abstract

the present water crisis has many components of an environmental, economic and social origin: overuses of water, pollution, changes in availability, and water mismanagement are some of the current problems. to cope with these problems and enhance strategies for long term management, the following programs and approaches are presented: a) a watershed approach, integrating research, monitoring, data base and management; b) an improved water governance system based on participation of stakeholders and the public and private sector; c) strategic studies considering water and the economy, water and metropolitan regions, water and energy; d) a framework for international cooperation on shared watersheds; e) an economic evaluation of water resources services (surface and underground, lakes, rivers and reservoirs). f) a capacity building program for managers, with an integrated, predictive and hydrographic basin approach.

Effect of watershed land use on water quality: a case study in Córrego da Olaria Basin, São Paulo State, Brazil

“…The watershed is considered as a territorial unit for soil and water management (Pissarra, 2002;Tundisi, 2008;Silvino and Barbosa, 2015). Faustino et al (2014) argue that it's an area defined topographically, drained by a watercourse and interconnected waterways systems such where the streams are discharged into a single output.…”

“…Faustino et al (2014) argue that it's an area defined topographically, drained by a watercourse and interconnected waterways systems such where the streams are discharged into a single output. It is an important unit in scientific research, training, integrated use of information for demonstration, experimentation and observation in real field, working as a natural laboratory for the short, medium and long-term studies, in order to contribute to the search for sustainable management criteria (Tundisi, 2008;Carvalho et al, 2015;Duarte-dos-Santos et al, 2016).…”

Sustainable access to safe drinking water: fundamental human right in the international and national scene

“…Further, a significant portion of water use relies upon unsustainable practices, which results in a still larger decrease of available freshwater due to poor quality (Gleick, 2000;Tundisi, 2008;Oliveira and Amarante Junior, 2009). For these reasons, the current worldwide water shortage is a reality for an increasing number of countries influencing the fundamental rights of individuals, both directly and indirectly.…”

“…Brazil has good amount of freshwater in relation to national demands (Augusto et al, 2012), but has an unequal distribution in its regions (Tundisi, 2008). However, the available freshwater is not always water of good quality, due to inadequate treatment.…”

Avaliação da sustentabilidade ambiental do uso de esgoto doméstico tratado na piscicultura

“…Isso ocorre tanto do ponto de vista da captação de volumes, cada vez maior para o consumo humano direto, como para abastecer as diversas atividades que dão sustentação ao padrão de consumo da sociedade, como nas atividades industriais e nas atividades agrícolas, sendo esta última responsável pelo consumo de aproximadamente 70% de toda a água disponível no planeta (TELLES, 2006;TUNDISI, 2008).…”