HOME >> BIOLOGY >> NEWS
Small-scale logging leads to clear-cutting in Brazilian Amazon

Stanford, CA-A team of scientists, led by Greg Asner of the Carnegie Institution's Department of Global Ecology, has discovered an important indicator of rain forest vulnerability to clear-cutting in Brazil. Their five-year study is the first to quantify the relationship between selective logging, where loggers extract individual trees from the rain forest, and complete deforestation, or clear-cutting. They found that 16% of rain forests, which had been selectively logged, were completely clear-cut within one year and 32% of logged areas were completely cleared within four years. Virtually all of this double damage occurs within 15 miles (25 km) miles of major roads. Practically no selective logging takes place at distances greater than 15 miles from the roads.

The results, published during the week of July 31, 2006, in the on-line early edition of The Proceedings of the National Academy of Sciences,** come on the heels of recent Brazilian legislation to regulate logging for better sustainability and the announcement by the Brazilian National Space Research Institute (INPE) to develop a remote sensing system to monitor logging in collaboration with the Brazilian non-governmental organization, IMAZON. The on-going work of the Carnegie-led team could bolster the long-term timber management goals and monitoring efforts of the government.

The scientists used their novel high-resolution, remote-sensing techniques to measure logging and combined that information with the deforestation maps that Brazil makes publicly available through the INPE PRODES program. "We surveyed an area that is about three times the size of Texas from 1999 to 2004," explained Asner. Diane Wickland, Manager of the Terrestrial Ecology Program at NASA Headquarters, who funded the study, hailed this work as "a compelling demonstration of how satellite data can be used to provide quantitative information over large regions--regions too large to measure effectively in any other
'"/>

Contact: Greg Asner
gasner@globalecology.stanford.edu
650-380-2828
Carnegie Institution
31-Jul-2006


Page: 1 2 3

Related biology news :

1. Small-scale agricultural changes may help eradicate widespread disease
2. Salvage logging, replanting increased biscuit fire severity
3. Woods Hole Research Center scientists study impacts of industrial logging in Central Africa
4. New study sheds light on long-term effects of logging after wildfire
5. Debate continues on post-wildfire logging, forest regeneration
6. Modern forests suffer from century-old logging legacy
7. Selective logging causes widespread destruction of Brazils Amazon rainforest, study finds
8. Poaching, logging, and outbreaks of Ebola threaten central African gorillas and chimpanzees
9. Free-for-all illegal logging of mahogany in Peruvian parks, says Duke-based monitoring group
10. Acute sleep deprivation leads to changes in nighttime urine production for men and women
11. Biodesign Institute leads innovative project to prevent cancer

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:10/16/2018)... ... October 16, 2018 , ... ... advanced software solutions for biopharmaceutical R&D, today announced Genedata Imagence®, the industry’s ... (HCS) images. The deep learning-based solution accelerates, by orders of magnitude, the ...
(Date:10/16/2018)... ... ... Our own cells may be the answer to eliminating chronic neck or ... and pain management specialist Jason Arora, DO, who says using a patient’s blood plasma, ... patient’s bone marrow are proving effective therapies for eliminating discogenic pain, namely pain caused ...
(Date:10/16/2018)... ... October 16, 2018 , ... ... development, announces a new publication titled, “ Graphene-based Biosensor for On-Chip Detection of ... describes Agile R100 as a “new portable digital device for biosensing… that can ...
Breaking Biology News(10 mins):
(Date:10/16/2018)... ... October 16, 2018 , ... ... Moreno-Indias, PhD, Senior Researcher at the Biomedical Research Institute of Malaga, University ... Network of Obesity and Nutrition, to its Scientific Advisory Board. Joining the board ...
(Date:10/16/2018)... ... October 15, 2018 , ... ... the visualization of histopathology slides by eye wherein key features are used for ... diagnosis and research, it is highly limited in that it is a qualitative ...
(Date:10/13/2018)... ... October 12, 2018 , ... The Laser ... and commercialization, celebrates its 50th birthday in New York’s Times Square today, ahead ... (ICALEO) conference. , In celebration of its 50 years, LIA showed thanks ...
(Date:10/11/2018)... NEW YORK, NY (PRWEB) , ... October 11, ... ... critical role in the treatment of diseases like leukemia, lymphoma, sickle cell anemia, ... these promising new therapies. Quick Specialized Healthcare Logistics’ new e-book provides expert advice ...
Breaking Biology Technology:
Cached News: