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:6/23/2015)... June 22, 2015 ... addition of the "Body-Worn Temperature Sensors Market ... and Forecast 2014 - 2020" report to ... analysis of the global body-worn temperature sensors market. ... segmented on the basis of types, care setting, ...
(Date:6/18/2015)... June 18, 2015 This report analyzes the ... the following Product Segments, which includes Immunoassay Analyzers and ... Systems, Radio Immunoassay Systems, and Nephelometric Immunoassay Systems. The ... Canada , Japan , ... , Latin America , and Rest ...
(Date:6/17/2015)... , and HILDEN, Germany , June 17, ... ; Frankfurt Prime Standard: QIA) today launched new Investigator ® ... forensic laboratories in the United States . ... simultaneously analyze multiple key genomic markers (short tandem repeats or ... Quality Sensor to evaluate the quality of DNA in each ...
Breaking Biology News(10 mins):Body-Worn Temperature Sensors Market - Global Industry Analysis 2Global Immunoassay Systems Market 2Global Immunoassay Systems Market 3Global Immunoassay Systems Market 4Global Immunoassay Systems Market 5Global Immunoassay Systems Market 6Global Immunoassay Systems Market 7Global Immunoassay Systems Market 8Global Immunoassay Systems Market 9Global Immunoassay Systems Market 10Global Immunoassay Systems Market 11Global Immunoassay Systems Market 12Global Immunoassay Systems Market 13Global Immunoassay Systems Market 14Global Immunoassay Systems Market 15Global Immunoassay Systems Market 16Global Immunoassay Systems Market 17Global Immunoassay Systems Market 18Global Immunoassay Systems Market 19Global Immunoassay Systems Market 20Global Immunoassay Systems Market 21Global Immunoassay Systems Market 22Global Immunoassay Systems Market 23Global Immunoassay Systems Market 24Global Immunoassay Systems Market 25Global Immunoassay Systems Market 26Global Immunoassay Systems Market 27Global Immunoassay Systems Market 28Global Immunoassay Systems Market 29QIAGEN Launches New Genetic Fingerprinting Kits for U.S. Forensic Labs 2QIAGEN Launches New Genetic Fingerprinting Kits for U.S. Forensic Labs 3QIAGEN Launches New Genetic Fingerprinting Kits for U.S. Forensic Labs 4QIAGEN Launches New Genetic Fingerprinting Kits for U.S. Forensic Labs 5
(Date:7/3/2015)... , July 3, 2015 ... till 22 september 2015 på  http://www.openinnovationinscience.at ... Innovation in Science" som hålls i ... en färsk undersökning med internationella forskare och ... (LBG) är hälsovetenskapens två största utmaningar bristen ...
(Date:7/3/2015)... 3, 2015  Pomerantz LLP announces that a class ... ("Puma" or the "Company")(NYSE: PBYI ) and certain ... States District Court, Central District of California ... of a class consisting of all persons or entities ... May 13, 2015 inclusive (the "Class Period").  This class ...
(Date:7/2/2015)... ... , ... Cuvettes have been used in countless labs for decades. In the past, people ... As expected, this was a daunting and tiring process looking at endless data tables ... able to navigate the complex catalog structure. , Now thanks to FireflySci, scientists are throwing ...
(Date:7/2/2015)... July 2, 2015  Spherix Incorporated (Nasdaq: SPEX ... and monetization of intellectual property, today announced a litigation ... Incorporated v. Verizon Services Corp. et al. , Case ... the Eastern District of Virginia , ... 2015 interpreting certain key claims in favor of the ...
Breaking Biology Technology:Lansering av världens första program för öppen innovation för att utbilda forskare 2Lansering av världens första program för öppen innovation för att utbilda forskare 3SHAREHOLDER ALERT: Pomerantz Law Firm Reminds Shareholders with Losses on their Investment in Puma Biotechnology, Inc. of Class Action Lawsuit and Upcoming Deadline - PBYI 2SHAREHOLDER ALERT: Pomerantz Law Firm Reminds Shareholders with Losses on their Investment in Puma Biotechnology, Inc. of Class Action Lawsuit and Upcoming Deadline - PBYI 3SHAREHOLDER ALERT: Pomerantz Law Firm Reminds Shareholders with Losses on their Investment in Puma Biotechnology, Inc. of Class Action Lawsuit and Upcoming Deadline - PBYI 4New Cuvette E-Commerce Website Launched by FireflySci 2Spherix Issues A Litigation Update 2Spherix Issues A Litigation Update 3
Cached News: