Upstream watershed condition predicts rural children's health across 35 developing countries.

Journal Article (Journal Article)

Diarrheal disease (DD) due to contaminated water is a major cause of child mortality globally. Forests and wetlands can provide ecosystem services that help maintain water quality. To understand the connections between land cover and childhood DD, we compiled a database of 293,362 children in 35 countries with information on health, socioeconomic factors, climate, and watershed condition. Using hierarchical models, here we find that higher upstream tree cover is associated with lower probability of DD downstream. This effect is significant for rural households but not for urban households, suggesting differing dependence on watershed conditions. In rural areas, the effect of a 30% increase in upstream tree cover is similar to the effect of improved sanitation, but smaller than the effect of improved water source, wealth or education. We conclude that maintaining natural capital within watersheds can be an important public health investment, especially for populations with low levels of built capital.Globally diarrheal disease through contaminated water sources is a major cause of child mortality. Here, the authors compile a database of 293,362 children in 35 countries and find that upstream tree cover is linked to a lower probability of diarrheal disease and that increasing tree cover may lower mortality.

Full Text

Duke Authors

Cited Authors

  • Herrera, D; Ellis, A; Fisher, B; Golden, CD; Johnson, K; Mulligan, M; Pfaff, A; Treuer, T; Ricketts, TH

Published Date

  • October 2017

Published In

Volume / Issue

  • 8 / 1

Start / End Page

  • 811 -

PubMed ID

  • 28993648

Pubmed Central ID

  • PMC5634511

Electronic International Standard Serial Number (EISSN)

  • 2041-1723

International Standard Serial Number (ISSN)

  • 2041-1723

Digital Object Identifier (DOI)

  • 10.1038/s41467-017-00775-2


  • eng