Navigation Links
Handful of heavyweight trees per acre are forest champs
Date:5/3/2012

Big trees three or more feet in diameter accounted for nearly half the biomass measured at a Yosemite National Park site, yet represented only one percent of the trees growing there.

This means just a few towering white fir, sugar pine and incense cedars per acre at the Yosemite site are disproportionately responsible for photosynthesis, converting carbon dioxide into plant tissue and sequestering that carbon in the forest, sometimes for centuries, according to James Lutz, a University of Washington research scientist in environmental and forest sciences. He's lead author of a paper on the largest quantitative study yet of the importance of big trees in temperate forests being published online May 2 on PLoS ONE.

"In a forest comprised of younger trees that are generally the same age, if you lose one percent of the trees, you lose one percent of the biomass," he said. "In a forest with large trees like the one we studied, if you lose one percent of the trees, you could lose half the biomass."

In 2009, scientists including Lutz reported that the density of large-diameter trees declined nearly 25 percent between the 1930s and 1990s in Yosemite National Park, even though the area was never logged. Scientists including co-author Andrew Larson of the University of Montana, also have found notable numbers of large trees dying in similar areas across the West.

Because of this, scientists have been keen to study a plot large enough to detect forest ecosystem changes involving large trees, including the effects of climate variability and change, possible culprits in the declines, Lutz said.

The new 63-acre study site in the western part of Yosemite National Park is one of the largest, fully-mapped plots in the world and the largest old-growth plot in North America. The tally of what's there, including the counting and tagging of 34,500 live trees, was done by citizen scientists, mainly undergraduate college students, led by Lutz, Larson, Ma
'/>"/>

Contact: Sandra Hines
shines@uw.edu
206-543-2580
University of Washington
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Shade trees can protect coffee crops
2. Diversity of trees in Ecuadors Amazon rainforest defies simple explanation
3. Urban trees enhance water infiltration
4. Forest inventories in Oregon include more than trees
5. Forest inventories in California include more than trees
6. Flame retardants prove ineffective on fresh-cut Christmas trees
7. Flame retardants prove ineffective on fresh-cut Christmas trees
8. Trees wont stop tsunamis, scientists warn
9. Organic plant waste proves effective weed control for citrus trees
10. California study shows shade trees reduce summertime electricity use
11. Study finds hemlock trees dying rapidly, affecting forest carbon cycle
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Handful of heavyweight trees per acre are forest champs
(Date:2/13/2015)... Feb. 13, 2015 ACT Genomics Co., ... aims to transform cancer genomic information into precision ... company has raised US$ 8 million in the its ... Taipei, Taiwan , ACT Genomics ... With the aim to implement next generation sequencing ...
(Date:2/11/2015)... According to a ... Product (Cards and Readers, Biometrics, Controllers, Management Software), ... Healthcare, Education) and By Geography - Global Forecast and Analysis to ... Control Market is expected to reach $10.4 ... of 10.6% between 2014 and 2020. ...
(Date:2/5/2015)... , 5. Februar 2015 ... spezialisiertes Logistikunternehmen und hat eine neue Marketingkampagne ... Logistikfirma (Clinical Logistics Organization – CLO) der ... Kampagne lautet First , mit Schwerpunkt ... Foto: http://photos.prnewswire.com/prnh/20150205/173753 Logo ...
Breaking Biology News(10 mins):ACT Genomics Raises $8 Million in its First Private Funding Round 2Access Control Market Worth $10.4 Billion by 2020 2Access Control Market Worth $10.4 Billion by 2020 3Access Control Market Worth $10.4 Billion by 2020 4Marken startet Kampagne mit Patienten im Mittelpunkt 2Marken startet Kampagne mit Patienten im Mittelpunkt 3
... sense from an evolutionary point of view. It appears ... are much less likely to produce offspring than heterosexual ... extinguished long ago? What value could this sexual orientation ... any discernible reproductive advantage? One possible explanation is ...
... University of Pittsburgh and their collaborators have been awarded ... development of an implanted ventricular assist heart pump for ... disease. The project aims to provide much-needed access to ... older heart failure patients. Harvey Borovetz, Ph.D., distinguished ...
... Researchers from the University of Minnesota have found that ... and swimming style. The research, available on the Journal ... National Science Foundation,s National Center for Earth-surface Dynamics. Catch ... often guess how speedy it is. Tuna and mackerel look ...
Cached Biology News:Study reveals potential evolutionary role for same-sex attraction 2Study reveals potential evolutionary role for same-sex attraction 3Pitt-led team gets $5.6 million contract for heart assist device for infants and toddlers 2Pitt-led team gets $5.6 million contract for heart assist device for infants and toddlers 3Research finds water movements can shape fish evolution 2
(Date:2/26/2015)... 2015 On behalf of biotech client ... Wilentz, Goldman & Spitzer, P.A. (Wilentz) secured ... against Genewiz Inc. in excess of $10 million. The ... trade secrets, and that it improperly hired one or ... order denying motions for judgment notwithstanding the verdict, a ...
(Date:2/26/2015)... Calif. , Feb. 26, 2015 The healthcare ... this ever-changing arena, Frost & Sullivan will host its ... Sullivan Executive MindXchange , March 8 to 10, at the ... Diego, Calif. This event is a ... healthcare leaders to discuss industry disruptions and how to succeed ...
(Date:2/26/2015)... The Pittcon 2015 Exposition, which takes ... Morial Convention Center in New Orleans, Louisiana, will ... 2015) displaying products and services used by the ... The Exposition will offer the latest innovations in ... chemistry; drug discovery; nanotechnology; life sciences to include ...
(Date:2/26/2015)... February 26, 2015 Innovation is ... emerging from unexpected parts of the world and ... From agriculture to manufacturing to health care, disruption ... environmental realities and socio-political trends shake the foundations ... key ingredient for CEOs to survive the next ...
Breaking Biology Technology:Wilentz Client GenScript Awarded $10 Million in Trade Secrets Case Against Genewiz 2Wilentz Client GenScript Awarded $10 Million in Trade Secrets Case Against Genewiz 3Embrace the Future of Medical Technologies with Frost & Sullivan 2Embrace the Future of Medical Technologies with Frost & Sullivan 3Pittcon 2015 Announces Exposition Highlights 2One Million Acts of Innovation Canada Creates Partnership with The Economist Events’ Innovation Forum 2
... ... Optimization and Scale-up of a Hydrodynamically Limited Anti-Solvent Crystallization Process: From ... paper presented at the 16th International Process Development Conference. The ... scale-up of hydrodynamically limited antisolvent crystallization process. This protocol combines ...
... , OMAHA, Neb., Aug. 12 Transgenomic, Inc. ... 30, 2009. The Company,s financial results are presented in the tables that follow. ... reported a net loss of $730,000 or $0.01 per share for the second ... share for the second quarter of 2008. , , ...
... Aug. 12 Palatin Technologies, Inc. (NYSE Amex: PTN ... gross proceeds, before deducting placement agent fees and other estimated offering ... a price of $0.33 per unit. Each unit will consist of ... at any time on or after issuance and on or before ...
Cached Biology Technology:Optimization and Scale-up of a Hydrodynamically Limited Anti-Solvent Crystallization Process: From Lab to Plant 2Transgenomic, Inc. Reports Second Quarter 2009 Results 2Transgenomic, Inc. Reports Second Quarter 2009 Results 3Transgenomic, Inc. Reports Second Quarter 2009 Results 4Transgenomic, Inc. Reports Second Quarter 2009 Results 5Transgenomic, Inc. Reports Second Quarter 2009 Results 6Transgenomic, Inc. Reports Second Quarter 2009 Results 7Transgenomic, Inc. Reports Second Quarter 2009 Results 8Palatin Technologies, Inc. to Raise $3.1 Million in Registered Direct Offering 2Palatin Technologies, Inc. to Raise $3.1 Million in Registered Direct Offering 3
Human RXR beta/NR2B2 MAb (Clone H7341) Keywords: RXRbeta, RXRbeta, Retinoid X Receptor beta...
Human ULBP-3 MAb (Clone 166514)...
... polyclonal to GRASP1 ( Abpromise ... Antigen: Synthetic peptide corresponding ... C terminal region of rat GRASP1, ... Entrez GeneID: ...
BOND ELUT MATRIX-C18, 25 mg ...
Biology Products: