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Consequences of alternative tree-level biomass estimation procedures on U.S. forest carbon stock estimates

Forest ecosystems are the largest terrestrial carbon sink on earth and their management has been recognized as a relatively cost-effective strategy for offsetting greenhouse gas emissions. Forest carbon stocks in the U.S. are estimated using data from the USDA Forest Service, Forest Inventory and Analysis (FIA) program. In an attempt to balance accuracy with...

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Author(s):

Grant M. Domke; Christopher W. Woodall; James E. Smith; James A. Westfall; Ronald E. McRoberts

Year:

2012

Keywords:

Forest inventory, Carbon accounting, Tree volume, Climate change, Tree biomass

Source:

Forest Ecology and Management. 270(15): 108-116.

Evaluating the national land cover database tree canopy and impervious cover estimates across the conterminous United States: a comparison with photo-interpreted estimates

The 2001 National Land Cover Database (NLCD) provides 30-m resolution estimates of percentage tree canopy and percentage impervious cover for the conterminous United States. Previous estimates that compared NLCD tree canopy and impervious cover estimates with photo-interpreted cover estimates within selected counties and places revealed that NLCD underestimates tree...

Author(s):

David J. Nowak; Eric J. Greenfield

Year:

2010

Keywords:

national cover maps, photo-interpretation, tree canopy cover, impervious cover

Source:

Environmental Management. 46(3): 378-390.

From Models to Measurements: Comparing Downed Dead Wood Carbon Stock Estimates in the U.S. Forest Inventory

The inventory and monitoring of coarse woody debris (CWD) carbon (C) stocks is an essential component of any comprehensive National Greenhouse Gas Inventory (NGHGI). Due to the expense and difficulty associated with conducting field inventories of CWD pools, CWD C stocks are often modeled as a function of more commonly measured stand attributes such as live tree C...

Author(s):

Grant M. Domke; Christopher W. Woodall; Brian F. Walters; James E. Smith

Year:

2013

Keywords:

coarse woody debris, carbon, inventory, model

Source:

PLoS ONE 8(3): e59949. doi:10.1371/journal.pone.0059949

Accounting for density reduction and structural loss in standing dead trees: Implications for forest biomass and carbon stock estimates in the United States

Standing dead trees are one component of forest ecosystem dead wood carbon (C) pools, whose national stock is estimated by the U.S. as required by the United Nations Framework Convention on Climate Change. Historically, standing dead tree C has been estimated as a function of live tree growing stock volume in the U.S.'s National Greenhouse Gas Inventory. Initiated...

Author(s):

Grant M. Domke; Christopher W. Woodall; James E. Smith

Year:

2011

Keywords:

carbon accounting, forest inventory, greenhouse gas, dead wood, snag, standing dead

Source:

Carbon Balance and Management. 6:14. [11 p.]

Recent changes in the estimation of standing dead tree biomass and carbon stocks in the U.S. forest inventory

Until recently, standing dead tree biomass and carbon (C) has been estimated as a function of live tree growing stock volume in the U.S. Forest Service, Forest Inventory and Analysis (FIA) Program. Traditional estimates of standing dead tree biomass/C attributes were based on merchantability standards that did not reflect density reductions or structural loss due to...

Author(s):

Grant M. Domke; Christopher W. Woodall; James E. Smith

Year:

2012

Keywords:

statistics, estimation, sampling, modeling, remote sensing, forest health, data integrity, environmental monitoring, cover estimation, international forest monitoring

Source:

In: Morin, Randall S.; Liknes, Greg C., comps. Moving from status to trends: Forest Inventory and Analysis (FIA) symposium 2012; 2012 December 4-6; Baltimore, MD. Gen. Tech. Rep. NRS-P-105. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. [CD-ROM]: 164-169.

A method countries can use to estimate changes in carbon stored in harvested wood products and the uncertainty of such estimates

A method is suggested for estimating additions to carbon stored in harvested wood products (HWP) and for evaluating uncertainty. The method uses data on HWP production and trade from several decades and tracks annual additions to pools of HWP in use, removals from use, additions to solid waste disposal sites (SWDS), and decay from SWDS. The method is consistent with...

Author(s):

Kenneth E. Skog; Kim Pingoud; James E. Smith

Year:

2004

Keywords:

carbon sequestration, harvested wood products, estimation methods

Source:

Environmental Management. 33(Supplement 1): S65-S73.

National inventories of down and dead woody material forest carbon stocks in the United States: Challenges and opportunities

Concerns over the effect of greenhouse gases and consequent international agreements and regional/national programs have spurred the need for comprehensive assessments of forest ecosystem carbon stocks. Down and dead woody (DDW) materials are a substantial component of forest carbon stocks; however, few surveys of DDW carbon stocks have been conducted at national-...

Author(s):

C.W. Woodall; L.S. Heath; J.E. Smith

Year:

2008

Keywords:

dead wood, coarse woody debris, fine woody debris, carbon inventory, model

Source:

Forest Ecology and Management. 256: 221-228.

Equivalence of live tree carbon stocks produced by three estimation approaches for forests of the western United States

The focus on forest carbon estimation accompanying the implementation of increased regulatory and reporting requirements is fostering the development of numerous tools and methods to facilitate carbon estimation. One such well-established mechanism is via the Forest Vegetation Simulator (FVS), a growth and yield modeling system used by public and private land managers...

Author(s):

Coeli M. Hoover; James E. Smith

Year:

2017

Keywords:

Source:

Forest Ecology and Management

Investigation into calculating tree biomass and carbon in the FIADB using a biomass expansion factor approach

The official U.S. forest carbon inventories (U.S. EPA 2008) have relied on tree biomass estimates that utilize diameter based prediction equations from Jenkins and others (2003), coupled with U.S. Forest Service, Forest Inventory and Analysis (FIA) sample tree measurements and forest area estimates. However, these biomass prediction equations are not the equations used...

Author(s):

Linda S. Heath; Mark Hansen; James E. Smith; Patrick D. Miles

Year:

2009

Keywords:

biomass equation, forest inventory, greenhouse gas inventory, FIA

Source:

In: McWilliams, Will; Moisen, Gretchen; Czaplewski, Ray, comps. Forest Inventory and Analysis (FIA) Symposium 2008; October 21-23, 2008; Park City, UT. Proc. RMRS-P-56CD. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 26 p.

Equivalence among three alternative approaches to estimating live tree carbon stocks in the eastern United States

Assessments of forest carbon are available via multiple alternate tools or applications and are in use to address various regulatory and reporting requirements. The various approaches to making such estimates may or may not be entirely comparable. Knowing how the estimates produced by some commonly used approaches vary across forest types and regions allows users of...

Author(s):

Coeli M. Hoover; James E. Smith

Year:

2017

Keywords:

Biomass equation, Biomass estimation, Allometry, Forest carbon stocks, Equivalence

Source:

Forest Ecology and Management

A method countries can use to estimate changes in carbon stored in harvested wood products and the uncertainty of such estimates

Author(s):

Kenneth E. Skog; Kim Pingoud; James E. Smith

Year:

2004

Keywords:

Carbon sequestration, harvested wood products, estimation methods

Source:

Environmental management. Vol. 33, suppl. 1 (2004): Pages S65-S73

Forest volume-to-biomass models and estimates of mass for live and standing dead trees of U.S. forests.

Includes methods and equations for nationally consistent estimates of tree-mass density at the stand level (Mg/ha) as predicted by growing-stock volumes reported by the USDA Forest Service for forests of the conterminous United States. Developed for use in FORCARB, a carbon budget model for U.S. forests, the equations also are useful for converting plot-, stand- and...

Author(s):

James E. Smith; Linda S. Heath; Jennifer C. Jenkins

Year:

2003

Keywords:

biomass, carbon, carbon sequestration, forest, live and standing dead trees

Source:

Gen. Tech. Rep. NE-298. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northeastern Research Station. 57 p.

Quantifying scaling effects on satellite-derived forest area estimates for the conterminous USA

We quantified the scaling effects on forest area estimates for the conterminous USA using regression analysis and the National Land Cover Dataset 30m satellite-derived maps in 2001 and 1992. The original data were aggregated to: (1) broad cover types (forest vs. non-forest); and (2) coarser resolutions (1km and 10 km). Standard errors of the model estimates were 2.3%...