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Elevated rates of gold mining in the Amazon revealed through high-resolution monitoring

Proceedings of the National Academy of Sciences - PNAS, 2013-11, Vol.110 (46), p.18454-18459 [Peer Reviewed Journal]

copyright © 1993–2008 National Academy of Sciences of the United States of America ;2015 INIST-CNRS ;Copyright National Academy of Sciences Nov 12, 2013 ;ISSN: 0027-8424 ;EISSN: 1091-6490 ;DOI: 10.1073/pnas.1318271110 ;PMID: 24167281 ;CODEN: PNASA6

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Title:
Elevated rates of gold mining in the Amazon revealed through high-resolution monitoring
Author: Asner, Gregory P. ; Llactayo, William ; Tupayachi, Raul ; Luna, Ernesto Ráez
Subjects: Animal, plant and microbial ecology ; Applied ecology ; Biological and medical sciences ; Conservation of Natural Resources - statistics & numerical data ; Conservation, protection and management of environment and wildlife ; Deforestation ; Degraded forests ; Environmental degradation: ecosystems survey and restoration ; Environmental monitoring ; Environmental Monitoring - methods ; Environmental Monitoring - statistics & numerical data ; Forest ecology ; Forestry ; Forests ; Fundamental and applied biological sciences. Psychology ; General forest ecology ; Generalities. Production, biomass. Quality of wood and forest products. General forest ecology ; Geographic regions ; Gold ; Gold alloys ; Gold mining ; Humans ; Landsat ; Mapping ; Mining ; Mining - statistics & numerical data ; Parks, reserves, wildlife conservation. Endangered species: population survey and restocking ; Peru ; Satellite Imagery - methods ; Social Sciences ; Tropical forests ; Tropical regions
Is Part Of: Proceedings of the National Academy of Sciences - PNAS, 2013-11, Vol.110 (46), p.18454-18459
Description: Gold mining has rapidly increased in western Amazonia, but the rates and ecological impacts of mining remain poorly known and potentially underestimated. We combined field surveys, airborne mapping, and high-resolution satellite imaging to assess road- and river-based gold mining in the Madre de Dios region of the Peruvian Amazon from 1999 to 2012. In this period, the geographic extent of gold mining increased 400%. The average annual rate of forest loss as a result of gold mining tripled in 2008 following the global economic recession, closely associated with increased gold prices. Small clandestine operations now comprise more than half of all gold mining activities throughout the region. These rates of gold mining are far higher than previous estimates that were based on traditional satellite mapping techniques. Our results prove that gold mining is growing more rapidly than previously thought, and that high-resolution monitoring approaches are required to accurately quantify human impacts on tropical forests.
Publisher: Washington, DC: National Academy of Sciences
Language: English
Identifier: ISSN: 0027-8424
EISSN: 1091-6490
DOI: 10.1073/pnas.1318271110
PMID: 24167281
CODEN: PNASA6
Source: GFMER Free Medical Journals
MEDLINE
PubMed Central

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Elevated rates of gold mining in the Amazon revealed through high-resolution monitoring

copyright © 1993–2008 National Academy of Sciences of the United States of America ;2015 INIST-CNRS ;Copyright National Academy of Sciences Nov 12, 2013 ;ISSN: 0027-8424 ;EISSN: 1091-6490 ;DOI: 10.1073/pnas.1318271110 ;PMID: 24167281 ;CODEN: PNASA6

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