Navigation Links
80 percent of Malaysian Borneo degraded by logging
Date:7/20/2013

Washington, DCA study published in the July 17, issue of the journal PLOS ONE found that more than 80% of tropical forests in Malaysian Borneo have been heavily impacted by logging.

The Malaysian states of Sabah and Sarawak were already thought to be global hotspots of forest loss and degradation due to timber and oil palm industries, but the rates and patterns of change have remained poorly measured by conventional field or satellite approaches. A research team from the University of Tasmania, University of Papua New Guinea, and the Carnegie Institution for Science documented the full extent of logging in this region.

The team used the Carnegie Landsat Analysis System-lite (CLASlite) to reveal the vast and previously unmapped extent of heavily logged forest. CLASlite's high-resolution satellite imaging uncovered logging roads in Brunei and in the Malaysian states of Sabah and Sarawak on the island of Borneo.

CLASlite, developed by Carnegie's Greg Asner and team, has the unique ability to convert satellite images of seemingly dense tropical forest cover into highly detailed maps of deforestation and forest degradation. The user-friendly monitoring system has been made available to hundreds of governments, nongovernmental organizations, and academic institutions for use in mapping tropical forests.

Analysis of satellite imagery collected from 1990 and 2009 over Malaysian Borneo showed approximately 226,000 miles (364,000 km) of roads constructed throughout the forests of this region. Nearly 80% of the land surface of Sabah and Sarawak was impacted by previously undocumented, high-impact logging or clearing operations. This finding contrasted strongly with neighboring Brunei, where 54% of the land area maintained intact unlogged forest.

Team leader Jane Bryan said: "There is a crisis in tropical forest ecosystems worldwide, and our work documents the extent of the crisis on Malaysian Borneo. Only small areas of intact forest remain in Malaysian Borneo, because so much has been heavily logged or cleared for timber or oil palm production. Rainforests that previously contained lots of big old trees, which store carbon and support a diverse ecosystem, are being replaced with oil palm or timber plantations, or hollowed out by logging."

Only 8% and 3% of land area in Sabah and Sarawak, respectively, was covered by intact forests in designated protected areas. Very few forest ecosystems remain intact in Sabah or Sarawak. But Brunei has largely excluded industrial logging from its borders and has been comparatively successful in protecting its forests.

Greg Asner commented: "The results are sobering. The problem with previous monitoring reports is that they have been based on satellite mapping methods that have missed most of the forest degradation in Malaysian Borneo, and elsewhere throughout the tropics. I'm talking about heavy logging that leaves a wake of forest degradation, even though the area may still look like forest in conventional satellite imagery. With the CLASlite system, we can see the effects of logging on the inner canopy of the forest. The system revealed extremely widespread degradation in this case."

Co-author of the study Phil Shearman said: "The extent of logging in Sabah and Sarawak documented in our work is breathtaking. The logging industry has penetrated right into the heart of Borneo and very little rainforest remains untouched by logging or clearfell in Malaysian Borneo. Brunei provides a stunning contrast. Most of Brunei's forests are still intact, as a result of largely excluding the logging industry from its borders. The situation in these tropical forests is now so severe that any further sacrifice of intact ecosystems to the logging industry should be off the table."


'/>"/>

Contact: Greg Asner
gpa@carnegiescience.edu
650-462-1047
Carnegie Institution
Source:Eurekalert

Related biology news :

1. Japan, China and South Korea account for 84 percent of the macroalgae patents
2. 21 percent of homes account for 50 percent of greenhouse gas emissions
3. Herbal extract boosts fruit fly lifespan by nearly 25 percent, UCI study finds
4. Petroleum use, greenhouse gas emissions of automobiles could drop 80 percent by 2050
5. Squashed loft insulation 50 percent less effective
6. Cities can reduce greenhouse gas emissions by 70 percent, says U of T researcher
7. Renewables and storage could power grid 99.9 percent of the time
8. Agriculture & food production contribute up to 29 percent of global greenhouse gas emissions
9. Eliza Corporation and BlueCross BlueShield of South Carolina Drive Awareness and Healthier Behavior to Increase Colorectal Cancer Screenings by 45 Percent
10. Developing world has less than 5 percent chance of meeting UN child hunger target, study estimates
11. Tax on salt could reduce cardiovascular disease deaths by 3 percent
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/15/2016)... CHICAGO , April 15, 2016  A ... companies make more accurate underwriting decisions in a ... offering timely, competitively priced and high-value life insurance ... health screenings. With Force Diagnostics, rapid ... and lifestyle data readings (blood pressure, weight, pulse, ...
(Date:4/13/2016)... , April 13, 2016  IMPOWER physicians supporting ... are setting a new clinical standard in telehealth thanks ... By leveraging the higi platform, IMPOWER patients can routinely ... pulse and body mass index, and, when they opt ... and convenient visit to a local retail location at ...
(Date:3/29/2016)... 29, 2016 LegacyXChange, Inc. (OTC: ... and SelectaDNA/CSI Protect are pleased to announce our successful ... a variety of writing instruments, ensuring athletes signatures against ... collectibles from athletes on LegacyXChange will be assured of ... DNA. Bill Bollander , CEO states, ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... ... 23, 2016 , ... UAS LifeSciences, one of the leading ... UP4™ Probiotics, into Target stores nationwide. The company, which has been manufacturing high ... its list of well-respected retailers. This list includes such fine stores as Whole ...
(Date:6/23/2016)... , June 23, 2016 /PRNewswire/ - FACIT has ... Ontario biotechnology company, Propellon Therapeutics Inc. ... and commercialization of a portfolio of first-in-class WDR5 ... targets such as WDR5 represent an exciting class ... in precision medicine for cancer patients. Substantial advances ...
(Date:6/23/2016)... , June 23, 2016 Houston ... with the Cy-Fair Sports Association to serve as ... the agreement, Houston Methodist Willowbrook will provide sponsorship ... and connectivity with association coaches, volunteers, athletes and ... with the Cy-Fair Sports Association and to bring ...
(Date:6/23/2016)... June 23, 2016  The Prostate Cancer Foundation (PCF) is pleased ... and faster cures for prostate cancer. Members of the Class of 2016 were ... Read More About the Class of 2016 PCF Young ... ... ...
Breaking Biology Technology: