Water quality in streams is determined by several factors, including geology, topography, climate, and anthropogenic changes. This study aimed to assess the effects of watershed physical, morphology, and precipitation seasonality on the water quality of two streams that supply drinking water to rural settlements and urban areas in the Cerrado-Amazonia transition region. We monitored 16 physico-chemical attributes of water at six different sample locations over three years (2013–2016). Our results indicate that eight of these physico-chemical attributes did not meet the standards for safe drinking water established by Brazilian legislation. Precipitation seasonality, degradation of riparian zones, stream length, and watershed slope were the most important predictors of impaired water quality. Our results highlight the importance of restoring and conserving riparian forests in order to maintain drinking water quality.
Boletim Amazônia em Pauta 7 – Estratégias para reorientar o Pronaf para atividades produtivas de baixo impacto ambiental na Amazônia Legal
O Pronaf se tornou a principal política de apoio à agricultura familiar, a partir da qual outras políticas e programas foram elaborados de forma a integrar as ações governamentais para este segmento social - nos últimos 20 anos, foram investidos cerca de R$ 160 bilhões no Brasil. Mas é preciso repensar sua implementação considerando seu potencial como estímulo ao desenvolvimento sustentável.


