HOME >> BIOLOGY >> NEWS
Slow but sure -- Burned forest lands regenerate naturally

CORVALLIS, Ore. -- A new study of forest lands that burned in the 1990s in northern California and southwestern Oregon has concluded there is a "fair to excellent" chance that an adequate level of conifers will regenerate naturally, in sites that had no manual planting or other forest management.

The research, to be published Wednesday in the Journal of Forestry by scientists from Oregon State University, examined the recovery of conifers on 35 plots that had burned in wildfires from 9 to 19 years ago, and generally found a high level of naturally-regenerating tree seedlings.

Although the abundance of natural regeneration appeared to be variable and growth often slow, there was no evidence of recent conifer mortality or suppression leading to seedling death.

Total conifer density and the types of tree species varied quite a bit depending on elevation, but the density of surviving conifer seedlings was as much or more than typical densities in 60-100 year old stands in this region, which is about 100 to 1,000 trees per acre. Traditional old growth forests of this region, with trees 250 or more years old, often had as few as 20-40 large trees per acre.

About 10 percent of the plots studied already had larger trees that were considered "free to grow" by forestry standards. The scientists said the height of competing shrubs had "quite likely" slowed after one or two decades, and "we predict that conifer mortality will remain low and height growth will accelerate as individuals continue to emerge above the shrub layer." The study also showed that trees would regenerate at considerable distances from seed sources.

"The natural regeneration on many of these sites is actually much higher than needed to restore a forest," said Jeff Shatford, a senior faculty research assistant in the OSU Department of Forest Science. "We expect that the high density of young trees we observed will thin out naturally over time."

'"/>

Contact: Jeff Shatford
jeff.shatford@oregonstate.edu
541-737-5897
Oregon State University
4-Apr-2007


Page: 1 2 3 4

Related biology news :

1. New study warns limited carbon market puts 20 percent of tropical forest at risk
2. Tropical insects go the distance to inform rainforest conservation
3. Rain forest protection works in Peru
4. Smithsonian scientists show differing patterns of rainforest biodiversity
5. Lost forest yields several new species
6. Increase in creeping vines signals major shift in southern US forests
7. Loss of hemlocks will affect water dynamics in southern Appalachian forests
8. Greenlands ancient forests shed light on stability of ice sheet
9. Northern forests less effective than tropical forests in reducing global warming
10. The kapok connection -- Study explains rainforest similarities
11. Human activities increasing carbon sequestration in forests

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Slow but sure Burned forest lands regenerate naturally

(Date:2/5/2015)... , Feb. 3, 2015 Despite ... demand from industries such as consumer electronics, automotive, ... for surface mount technology (SMT) screen printers. Innovations ... automatic control will push the adoption curve up. ... remain steady as glue dispensers are indispensable in ...
(Date:1/22/2015)... Valid S.A. ("Company") (BM&FBOVESPA: VLID3 ON), is pleased to inform ... State of Washington,s Department of Licensing, in the ... issuance system for driver,s licenses and identification cards to its ... development will start in January 2015, with enrollment and card ...
(Date:1/22/2015)... MELBOURNE, Fla. , Jan. 13, 2015  Today, ... wearable technology, launched its crowdfunding campaign on Fundable, ... accelerate the build of production capacity to meet ... Photo - http://photos.prnewswire.com/prnh/20150113/168790 ...
Breaking Biology News(10 mins):End-user Demand Spurs Global SMT Screen Printers and Glue Dispensers Market 2End-user Demand Spurs Global SMT Screen Printers and Glue Dispensers Market 3Valid USA Signs Contract For Washington Driver's License Issuance 2FreeWavz Launches on Fundable to Drive Speed-to-Market in 2015 2
(Date:2/27/2015)... SUNNYVALE, Calif. , Feb. 27, 2015 /PRNewswire/ ... announced that longer-term toxicology studies for its newly ... arthritis, or RA, have been completed. The results ... the U.S. Food and Drug Administration. The feedback ... completion of the ongoing first-in-human study. Additional preclinical ...
(Date:2/27/2015)... 2015 Research and Markets ( http://www.researchandmarkets.com/research/p2ddnr/global_market ) ... of Trypsin" report to their offering. , ... providing comprehensive data on Trypsin globally and regionally ( ... North America , Latin America ... Trypsin This report focuses on three primary areas; ...
(Date:2/27/2015)... (PRWEB) February 27, 2015 The ... system (Nexera UC) can sequentially analyze up to ... combined with high-sensitivity detection of targets by mass ... designed to fulfill the measurement requirements of a ... food products, drug delivery and search for disease ...
(Date:2/27/2015)...  Pfenex Inc. (NYSE MKT: PFNX), a clinical-stage biotechnology ... announced that it will be presenting at CALBIO 2015 ... nd at 3pm PST. Patrick Lucy, chief business officer ... current state of the biosimilar industry landscape entitled ... For more information on CALBIO 2015 and The ...
Breaking Biology Technology:Pharmacyclics Provides Clinical Update on BTK Inhibitor for Autoimmune Diseases 2Pharmacyclics Provides Clinical Update on BTK Inhibitor for Autoimmune Diseases 3Global Market Report of Trypsin 2014-2018 2Shimadzu Corporation Launches Nexera UC - The World’s Foremost Unified Chromatography System 2Shimadzu Corporation Launches Nexera UC - The World’s Foremost Unified Chromatography System 3
Cached News: