12 Jul 2012:
Mountain Roads Trigger
Longterm Consequences in Southeast Asia
Roy C. Sidle
Logging roads in Myanmar
The rapid expansion of roads across the rural mountains of Southeast Asia often triggers unintended environmental consequences
that in many cases undermine the socioeconomic benefits, according to an article in the journal Nature Geoscience
. While international organizations have supported “aggressive” efforts to expand road networks to increase agricultural development, trade, and tourism in remote regions, poorly designed mountain roads can cause landslides, soil erosion, and increased deforestation, write researchers Roy Sidle and Alan Ziegler. An increase in road density has been “directly linked to drastic transformation, or even elimination, of traditional shifting cultivation methods (as practiced in rural uplands) and have been implicated in deforestation and land exploitation in remote regions,” they note. Without proper drainage systems, these roads can destabilize hillside and soil erosion, degrading water quality, aquatic habitats, and agricultural productivity.
Yale Environment 360 is
a publication of the
Yale School of Forestry
& Environmental Studies
Yale Environment 360
articles are now available in Spanish and Portuguese on Universia
, the online educational network. Visit the site.
Business & Innovation
Policy & Politics
Pollution & Health
Science & Technology
Antarctica and the Arctic
Central & South America
A three-part series Tainted Harvest
looks at the soil pollution crisis in China, the threat it poses to the food supply, and the complexity of any cleanup. Read the series.
is now available for mobile devices at e360.yale.edu/mobile
The Warriors of Qiugang
, a Yale Environment 360
video, chronicles a Chinese village’s fight against a polluting chemical plant. It was nominated for a 2011 Academy Award for Best Documentary Short.
Watch the video.
Top Image: aerial view of Iceland
. © Google & TerraMetrics.
, winner of the Yale Environment 360 Video Contest, documents the work of African researchers monitoring wildlife in Uganda's remote Bwindi Impenetrable National Park. Watch the video.