Road Impacts in Brazilian Amazonia
© 2009 by the American Geophysical Union. All rights reserved. We examine the evidence on Amazonian road impacts with a strong emphasis on context. Impacts of a new road, on either deforestation or socioeconomic outcomes, depend upon the conditions into which roads are placed. Conditions that matter include the biophysical setting, such as slope, rainfall, and soil quality, plus externally determined socioeconomic factors like national policies, exchange rates, and the global prices of beef and soybeans. Influential conditions also include all prior infrastructural investments and clearing rates. Where development has already arrived, with significant economic activity and clearing, roads may decrease forest less and raise output more than where development is arriving, while in pristine areas, short-run clearing may be lower than immense long-run impacts. Such differences suggest careful consideration of where to invest further in transport.
Pfaff, A; Barbieri, A; Ludewigs, T; Merry, F; Perz, S; Reis, E
- Amazonia and Global Change
Start / End Page
International Standard Book Number 13 (ISBN-13)
Digital Object Identifier (DOI)