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:4/6/2017)... 6, 2017 Forecasts by Product ... Readers, by End-Use (Transportation & Logistics, Government & Public ... & Fossil Generation Facility, Nuclear Power), Industrial, Retail, Business ... Are you looking for a definitive report on ... ...
(Date:4/3/2017)... 3, 2017  Data captured by IsoCode, ... detected a statistically significant association between the ... treatment and objective response of cancer patients ... predict whether cancer patients will respond to ... well as to improve both pre-infusion potency testing ...
(Date:3/28/2017)... PUNE, India , March 28, 2017 ... (Analog, IP, Biometrics), Hardware (Camera, Monitors, Servers, Storage Devices), ... Maintenance), Vertical, and Region - Global Forecast to 2022", ... 30.37 Billion in 2016 and is projected to reach ... 15.4% between 2017 and 2022. The base year considered ...
Breaking Biology News(10 mins):
(Date:4/25/2017)... CA (PRWEB) , ... April 25, 2017 , ... ... of L3 Healthcare, is pleased to announce the company is now a certified ... The iMedNet software certification enables the company’s clinical research team to build, ...
(Date:4/25/2017)... ... 25, 2017 , ... Leaders of Quorum Review IRB and ... sessions at this week’s Association of Clinical Research Professionals (ACRP) 2017 Meeting & ... research. , "We are excited to present subject matter expertise on topics that impact ...
(Date:4/21/2017)... ... 2017 , ... Having worked on the design of the innovative Triton™ ... to top lab design architects from around the country at the Lab Design Conference ... and Engineering Greg Casey will be at the show, where they will highlight the ...
(Date:4/21/2017)... ... April 21, 2017 , ... ... nourishing a range of emerging bio and technology start-ups, is hosting “Celebration Friday” ... This double event will start with libations and networking at 3:30 p.m. at ...
Breaking Biology Technology:
Cached News: