Effects of geomorphology and land use on stream water quality in southeastern Amazonia

12 de abril de 2019

abr 12, 2019

Hellen Kezia Silva Almad, Divino Vicente Silvério, Marcia Nunes Macedo, Leonardo Maracahipes-Santos, Elizabete Carolina Pinheiro Zaratim,Karina Pinheiro Zaratim, Alexsandro Maccari,Marcela Rodrigues Nascimento, Ricardo Keichi Umetsu

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.

Leia o artigo completo.

Read the full article.

Baixar (sujeito à disponibilidade)

Download (subject to availability)

ODS 15ODS 14ODS 13

Este projeto está alinhado aos Objetivos de Desenvolvimento Sustentável (ODS).

Saiba mais em brasil.un.org/pt-br/sdgs.

Veja também

See also

Apresentação Maria Teresa Pisani e Andrea Redaelli – Diálogo sobre a sustentabilidade e a rastreabilidade da cadeia da carne bovina e do couro

Apresentação Maria Teresa Pisani e Andrea Redaelli – Diálogo sobre a sustentabilidade e a rastreabilidade da cadeia da carne bovina e do couro

Apresentação de Maria Teresa Pisani, Diretora de Assuntos Econômicos da Divisão de Cooperação Econômica e Comércio Comissão Econômica das Nações Unidas para a Europa (UNECE) e Andrea Redaelli, Especialista em Soluções de Blockchain da UNECE, sobre o Sistema UNECE/ITC de blockchain para o setor do couro, exibida no evento Diálogo sobre a sustentabilidade e a rastreabilidade da cadeia da carne bovina e do couro.

Temporal changes in species composition, diversity, and woody vegetation structure of savannas in the Cerrado-Amazon transition zone

Temporal changes in species composition, diversity, and woody vegetation structure of savannas in the Cerrado-Amazon transition zone

Vegetation in the transition between tropical forest and savanna is hyperdynamic and there is evidence that in the absence of fire, forest advances over savanna. Between 2008 and 2013 we evaluated changes in species composition and diversity and in the structure of...