HOME >> BIOLOGY >> NEWS
Salvage logging, replanting increased biscuit fire severity

or economic purposes or to assure the establishment of desired tree species. However, the hypothesis that salvage-logging, then planting, reduces re-burn severity is not supported by these data, the scientists said in their report.

Young forests in this region are susceptible to recurring severe fires, Thompson said. Compared to an older forest with branches high above the forest floor, young trees are very vulnerable, whether they are planted or naturally regenerated.

However, in the aftermath of a wildfire, removal of large dead trees followed by planting conifer seedlings does not appear to lessen the risk of severe fires in the first 10-20 years, Thompson said. This may be because the logging process leaves more available fuel on the forest floor; the dense, homogenous replantation of young trees provides a good setting for fire; or some combination of these factors over time. Dead woody fuel . . . is only part of the fire risk story, and it may not be the most important after a few years, the study noted.

By contrast, natural regeneration of forests, he said, appears to result in at least slightly, and sometimes significantly less risk of severe future fires. This could be because the regenerating trees are more patchy, have open gaps, more species diversity, or other factors. But the study showed that total consumption of tree crowns in a recurring fire situation is more severe in the managed stands than the natural ones, at least when there are one to two decades between fires.

This research was done with satellite data, government agency records and aerial photography, in the mixed-conifer, mixed-evergreen hardwood zones of the Siskiyou Mountains. It analyzed burn severity patterns with a commonly used metric of fire damage on almost 45,000 acres of the Biscuit Fire that had also burned 15 years earlier.

Among its conclusions:

  • Areas that burned severely in 1987 tended to re-burn at high se
    '"/>


Contact: Jonathan Thompson
jonathan.thompson@oregonstate.edu
541-758-7759
Oregon State University
11-Jun-2007


Page: 1 2 3

Related biology news :

1. Debate continues on post-wildfire logging, forest regeneration
2. Poaching, logging, and outbreaks of Ebola threaten central African gorillas and chimpanzees
3. Cypress replanting unsuccessful without dual cultivation with lavender or mycorrhizal fungi
4. Gene variations directly link inflammation to an increased risk for lung cancer
5. BRCA2 carriers at increased risk for deadly form of prostate cancer
6. Gene mutation linked to increased athletic performance in whippets
7. Scientist advocates increased fisheries data gathering
8. A unique twin study on the increased cardiometabolic risk in obesity
9. African-Americans at increased risk for earlier preterm births
10. Firefighters face increased risk for certain cancers
11. Researchers link ocean organisms with increased cloud cover and potential climate change

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


(Date:5/16/2016)...   EyeLock LLC , a market leader of ... an IoT Center of Excellence in Austin, ... of embedded iris biometric applications. EyeLock,s iris ... security with unmatched biometric accuracy, making it the most ... EyeLock,s platform uses video technology to deliver a fast ...
(Date:4/28/2016)... April 28, 2016 First quarter 2016:   ... 966% compared with the first quarter of 2015 The ... 589.1 M (loss: 18.8) and the operating margin was 40% (-13) ... Cash flow from operations was SEK 249.9 M (21.2) ... guidance is unchanged, SEK 7,000-8,500 M. The operating margin ...
(Date:4/15/2016)... -- Research and Markets has announced the ...  report to their offering.  ,      ... gait biometrics market is expected to grow at ... Gait analysis generates multiple variables such ... compute factors that are not or cannot be ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... 23, 2016 /PRNewswire/ - FACIT has announced the ... biotechnology company, Propellon Therapeutics Inc. ("Propellon" or ... of a portfolio of first-in-class WDR5 inhibitors for ... as WDR5 represent an exciting class of therapies, ... medicine for cancer patients. Substantial advances have been ...
(Date:6/23/2016)... ... June 23, 2016 , ... Charm Sciences, Inc. is ... has received AOAC Research Institute approval 061601. , “This is another AOAC-RI approval ... Bob Salter, Vice President of Regulatory and Industrial Affairs. “The Peel Plate methods ...
(Date:6/23/2016)... 2016   EpiBiome , a precision microbiome engineering ... debt financing from Silicon Valley Bank (SVB). The financing ... advance its drug development efforts, as well as purchase ... "SVB has been an incredible strategic partner to us ... bank would provide," said Dr. Aeron Tynes Hammack ...
(Date:6/23/2016)... ... 23, 2016 , ... In a new case report published today in STEM ... who developed lymphedema after being treated for breast cancer benefitted from an injection of ... dealing with this debilitating, frequent side effect of cancer treatment. , Lymphedema ...
Breaking Biology Technology:
Cached News: