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Estimating plant biomass in early-successional subtropical vegetation using a visual obstruction technique

Aim: Non-destructive methods for quantifying above-ground plant biomass are important tools in many ecological studies and management endeavours, but estimation methods can be labour intensive and particularly difficult in structurally diverse vegetation types. We aimed to develop a low-cost, but reasonably accurate, estimation technique within early-successional...

https://www.fs.usda.gov/treesearch/search?keywords=%22estimation%22&%3Bamp%3Bf%5B0%5D=author_facet%3A%22Thompson%2C%20Craig%22&%3Bf%5B0%5D=year%3A%221969%22&f%5B0%5D=author_facet%3A%22Moghaddas%2C%20Emily%22&f%5B1%5D=author_facet%3A%22Wunderle%2C%20Joseph%22&f%5B2%5D=author_facet%3A%22Stevens%2C%20Jack%22&f%5B3%5D=author_facet%3A%22Chong%2C%20Joey%22&f%5B4%5D=author_facet%3A%22Urbanik%2C%20Thomas%22&f%5B5%5D=author_facet%3A%22Silva%2C%20Bruno%22&f%5B6%5D=author_facet%3A%22Hirth%2C%20Kolby%22

Author(s):

Genie M. Fleming; Joseph M. Wunderle; David N. Ewert; Joseph O'Brien

Year:

2014

Keywords:

Source:

Applied Vegetation Science

Brooklyn's urban forest

An assessment of trees in Brooklyn, New York, reveal that this borough has approximately 610,000 trees with canopies that cover 11.4 percent of the area. The most common trees are estimated to be tree of heaven, white mulberry, black locust, Norway maple and black cherry. Brooklyn's trees currently store approximately 172,000 metric tons of carbon with an...

Author(s):

David J. Nowak; Daniel E. Crane; Jack C. Stevens; Myriam Ibarra

Year:

2002

Keywords:

urban forestry, carbon sequestration, global climate change, air quality, air pollution

Source:

Gen. Tech. Rep. NE-290. Newtown Square, PA: U. S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station 107 p.

Laboratory immersion method for accelerated prediction of preservative leaching from pressure-treated wood exposed to precipitation

This article reports on the development of accelerated laboratory methods to allow estimation of preservative leaching frompressure-treated wood exposed to precipitation. End-matched lumber specimens were pressure-treated with a boron?copper formulation and exposed to natural weathering for 1 yr, laboratory immersion protocols, or a laboratory-simulated rainfall...

Author(s):

S Lebow; P Lebow; K C. Hirth

Year:

2019

Keywords:

Wood preservative, leaching, precipitation, accelerated test methods, immersion

Source:

Wood and Fiber Science. 51(1): 74-87.

Duration and rate of spring migration of Kirtland’s Warblers

The duration of migration of the endangered Kirtland?s Warbler (Setophaga kirtlandii) has not been previously documented. We estimated the average duration of spring migration for five male Kirtland?s Warblers by observing uniquely color-banded individuals at or near both the beginning and end of spring migration in Eleuthera, The Bahamas, and Michigan, respectively....

Author(s):

David N. Ewert; Kimberly R. Hall; Jr. Wunderle; Dave Currie; Sarah M. Rockwell; Scott B. Johnson; Jennifer D. White

Year:

2012

Keywords:

endangered species, Kirtland's Warbler, migration, Caribbean, Michigan, Setophaga kirtlandii

Source:

Wilson Journal of Ornithology. 124(1):9-14

Assessing market power in the U.S. pulp and paper industry

This paper assesses the market power of pulpwood mills in di?erent regions of the U.S. We estimated the conjectural elasticity, elasticities of substitution and price elasticities for the delivered price at the mill in Southeast and North U.S. and the stumpage in the Southeast. We assembled data composed of price and quantity of Labor, Energy, Chemical...

Author(s):

Bruno Kanieski Silva; Frederick W. Cubbage; Ronalds Gonzalez; Robert C. Abt

Year:

2019

Keywords:

Conjectural elasticities Pulpwood market Southern U.S. Market power

Source:

Forest Policy and Economics

Census Methods for Caribbean Land Birds

Different census methods can be used to survey the distribution of a terrestrial bird species or to monitor population changes. The appropriate method depends on whether the objective is simply to document the presence of a species or to quantify its relative abundance, population density, population trends over time, habitat use, survivorship, or the physical...

Author(s):

Joseph M. Wunderle

Year:

1994

Keywords:

Source:

Gen. Tech. Rep. SO-98. New Orleans, LA: U.S. Dept of Agriculture, Forest Service, Southern Forest Experiment Station. 26 p.

Effect of plot and sample size on timing and precision of urban forest assessments

Accurate field data can be used to assess ecosystem services from trees and to improve urban forest management, yet little is known about the optimization of field data collection in the urban environment. Various field and Geographic Information System (GIS) tests were performed to help understand how time costs and precision of tree population estimates change with...

Author(s):

David J. Nowak; Jeffrey T. Walton; Jack C. Stevens; Daniel E. Crane; Robert E. Hoehn

Year:

2008

Keywords:

tree measurement, urban forest monitoring, urban forest sampling

Source:

Aboriculture & Urban Forestry. 34(6): 386-390.

Assessing urban forest effects and values, Chicago's urban forest

An analysis of trees in Chicago, IL, reveals that this city has about 3,585,000 trees with canopies that cover 17.2 percent of the area. The most common tree species are white ash, mulberry species, green ash, and tree-of-heaven. Chicago's urban forest currently stores about 716,000 tons of carbon...

Author(s):

David J. Nowak; Robert E. III Hoehn; Daniel E. Crane; Jack C. Stevens; Cherie Leblanc Fisher

Year:

2010

Keywords:

urban forestry, ecosystem services, air pollution removal, carbon sequestration, tree value

Source:

Resour. Bull. NRS-37. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 27 p.

Assessing urban forest effects and values, Scranton's urban forest

An analysis of trees in the urbanized portion of Scranton, PA, reveals that this area has about 1.2 million trees with canopies that cover 22.0 percent of the area. The most common tree species are red maple, gray birch, black cherry, northern red oak, and quaking aspen. Scranton's urban forest currently store about 93,300 tons of carbon valued at $1.9 million. In...

Author(s):

David J. Nowak; Robert E. III Hoehn; Daniel E. Crane; Jack C. Stevens; Vincent Cotrone

Year:

2010

Keywords:

urban forestry, ecosystem services, air pollution removal, carbon sequestration, tree value

Source:

Resour. Bull. NRS-43. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 23 p.

Seasonal survival estimation for a long-distance migratory bird and the influence of winter precipitation

Conservation of migratory animals requires information about seasonal survival rates. Identifying factors that limit populations, and the portions of the annual cycle in which they occur, are critical for recognizing and reducing potential threats. However, such data are lacking for virtually all migratory taxa. We investigated patterns and environmental correlates of...

Author(s):

Sarah M. Rockwell; Joseph M. Wunderle; T. Scott Sillett; Carol I. Bocetti; David N. Ewert; Dave Currie; Jennifer D. White; Peter P. Marra

Year:

2017

Keywords:

Annual survival, Carryover effects, Kirtland's warbler, Non-breeding season, Population growth

Source:

Oecologia. 183(3): 715-726.

Air pollution removal by urban trees and shrubs in the United States

A modeling study using hourly meteorological and pollution concentration data from across the coterminous United States demonstrates that urban trees remove large amounts of air pollution that consequently improve urban air quality. Pollution removal (0₃, PM₁₀, NO₂, SO₂, CO)...

Author(s):

David J. Nowak; Daniel E. Crane; Jack C. Stevens

Year:

2006

Keywords:

Air quality, Urban forests, Urban forestry, Environmental quality

Source:

Urban Forestry & Urban Greening

Fuel treatment impacts on estimated wildfire carbon loss from forests in Montana, Oregon, California, and Arizona

Using forests to sequester carbon in response to anthropogenically induced climate change is being considered across the globe. A recent U.S. executive order mandated that all federal agencies account for sequestration and emissions of greenhouse gases, highlighting the importance of understanding how forest carbon stocks are influenced by wildfire. This paper reports...

Author(s):

Scott L. Stephens; Ralph E. J. Boerner; Jason J. Moghaddas; Emily E. Y. Moghaddas; Brandon M. Collins; Christopher B. Dow; Carl Edminster; Carl E. Fiedler; Danny L. Fry; Bruce R. Hartsough; Jon E. Keeley; Eric E. Knapp; James D. McIver; Carl N. Skinner; Andrew Youngblood

Year:

2012

Keywords:

carbon sequestration, fire suppression, fire surrogates, fuel management, mixed conifer, Pinus ponderosa, wildfire

Source:

Ecosphere. 3(5): 1-17, Article 38

Assessing urban forest effects and values, Casper's urban forest

An analysis of trees in Casper, WY reveals that this city has about 123,000 trees with canopies that cover 8.9 percent of the area. The most common tree species are plains cottonwood, blue spruce, and American elm. The urban forest currently store about 37,000 tons of carbon valued at $689,000. In addition, these trees remove about 1,200 tons of carbon per year ($22,...

Author(s):

David J. Nowak; Robert E., III Hoehn; Daniel E. Crane; Jack C. Stevens; Jeffrey T. Walton

Year:

2006

Keywords:

urban forestry, ecosystem services, air pollution removal, carbon sequestration, tree value

Source:

Resour. Bull. NRS-4. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 20 p.

Assessing urban forest effects and values, Washington, D.C.'s urban forest

An analysis of trees in Washington, D.C. reveals that this city has about 1,928,000 trees with canopies that cover 28.6 percent of the area. The most common tree species are American beech, red maple, and boxelder. The urban forest currently store about 526,000 tons of carbon valued at $9.7 million. In addition, these trees remove about 16,200 tons of carbon per year...

Author(s):

David J. Nowak; Robert E. III Hoehn; Daniel E. Crane; Jack C. Stevens; Jeffrey T. Walton

Year:

2006

Keywords:

urban forestry, ecosystem services, air pollution removal, carbon sequestration, tree value

Source:

Assessing urban forest effects and values, Washington, D.C.'s urban forest. Resour. Bull. NRS-1. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 24 p.

Assessing urban forest effects and values, San Francisco's urban forest

An analysis of trees in San Francisco, CA reveals that this city has about 669,000 trees with canopies that cover 11.9 percent of the area. The most common tree species are blue gum eucalyptus, Monterey pine, and Monterey cypress. The urban forest currently sto