Not developed or endorsed by NARA or DVIDS. Part of the World's largest public domain source PICRYL.com.

The state of Rondonia, in southern Brazil, is part

description

Summary

The state of Rondonia, in southern Brazil, is part of the Amazonian ''Arc of Deforestation,'' a belt of rapidly disappearing tropical forest that follows the southern margin of the Amazon and bends northeastward toward the southern bank of the mouth of the Amazon River. In Rondonia, clearing began with road expansion in the 1970s and 1980s that brought in loggers and mining operations, coupled with government programs to alleviate poverty by encouraging poor farmers to migrate and colonize the new frontier. In recent years, industrial scale agriculture, particularly cattle ranching and soybean farming, have become increasingly important causes of deforestation in the southern Amazon. This pair of images reveals how dramatically and rapidly the Amazon can be transformed. Using a scale, or index, of vegetation greenness based on observations made by the Advanced Spaceborne Thermal Emission and Reflection Radiometer asterweb.jpl.nasa.gov (ASTER) on NASA's terra.nasa.gov Terra satellite, the images compare deforested areas (tan) to forest (green) in 2000 (top) versus 2006 (bottom). The area, which is in southern Rondonia southwest of the Pacaas Novos National Park, was almost completely cleared during the period. The decreased greenness of the remaining forest in 2006 may be from a variety of causes: drought, degradation from logging or accidental fire, or different angles of observation during the two satellite overpasses. The Amazon isn't the only tropical forest under human pressure. All major tropical forests -- including those in the Americas, Africa, Southeast Asia, and Indonesia -- are disappearing, mostly to make way for human food production, including livestock and crops. Although deforestation meets some human needs, it also has profound, sometimes devastating, consequences, including social conflict, extinction of plants and animals, and climate change -- challenges that affect the whole world. The Earth Observatory's recently updated earthobservatory.nasa.gov/Library/Deforestation/deforestation_update.html Tropical Deforestation Factsheet provides an overview of causes, consequences, and rates of tropical deforestation, as well as information on NASA contributions to tropical deforestation research.
NASA Identifier: rondonia_ast_2006238_lrg

date_range

Date

08/07/2011
create

Source

Defense Visual Information Distribution Service
copyright

Copyright info

Public Domain Dedication. Public Use Notice of Limitations: https://www.dvidshub.net/about/copyright

Explore more

nasa
nasaimageofthedaygallery
deforestation in rondonia brazil image of the day
dvids
high resolution

The objects in this collection are from The U.S. National Archives and Defense Visual Information Distribution Service. The U.S. National Archives and Records Administration (NARA) was established in 1934 by President Franklin Roosevelt. NARA keeps those Federal records that are judged to have continuing value—about 2 to 5 percent of those generated in any given year. There are approximately 10 billion pages of textual records; 12 million maps, charts, and architectural and engineering drawings; 25 million still photographs and graphics; 24 million aerial photographs; 300,000 reels of motion picture film; 400,000 video and sound recordings; and 133 terabytes of electronic data. The Defense Visual Information Distribution Service provides a connection between world media and the American military personnel serving at home and abroad. All of these materials are preserved because they are important to the workings of Government, have long-term research worth, or provide information of value to citizens.

Disclaimer: A work of the U.S. National Archives and DVIDS is "a work prepared by an officer or employee" of the federal government "as part of that person's official duties." In general, under section 105 of the Copyright Act, such works are not entitled to domestic copyright protection under U.S. law and are therefore in the public domain. This website is developed as a part of the world's largest public domain archive, PICRYL.com, and not developed or endorsed by the U.S. National Archives or DVIDS.  https://www.picryl.com

Developed by GetArchive, 2015-2022