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15 results found
Culverts too small in diameter or poorly placed were major causes of timber flooding and tree damage. Placement problems were poor culvert slope, poor hydraulic approach, lack of gravel bedding, and too little soil covering the culverts.
Author(s): J.H. Stoeckeler
Keywords: culverts, timber flooding, tree damage
Source: Research Note NC-37. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station
Year: 1967
Tests the feasibility and economics of compacting hardwood tops with a prototype shearing and bunching device prior to skidding. Presents productivity levels and costs associated with compacting, skidding, and chipping hardwood tops.
Author(s): James A. Johnson, Rodger A. Arola, Edwin S. Miyata
Keywords: logging residue, chipping, tree damage, productivity, cost
Source: Research Paper NC-217. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station
Year: 1982
Forest managers are concerned about the potential damage to residual trees and site from cyclic harvest re-entries into the same forest stand. This study summarizes logging and felling damage resulting from the harvesting of silvicultural treatments on a large landscape experiment in southern…
Author(s): John P. Dwyer, Daniel C. Dey, William D. Walter, Randy G. Jensen
Keywords: harvesting impacts, logging damage, bole wounds, crown damage, tree damage, even- and uneven-aged harvest impacts
Source: Northern Journal of Applied Forestry. 21(4): 187-193.
Year: 2004
Forest Health Monitoring (FHM) provides a standardized detection-level survey of forest and tree characteristics for large forested areas. We have adopted FHM methods from this temperate-based program to tropical forests in the Eastern Arc Mountains (EAM) of Kenya and Tanzania. This paper reports…
Author(s): Paul C. Rogers, Barbara O'Connell, James Mwang'ombe, Seif Madoffe, Gerard Hertel
Keywords: Eastern Arc Mountains, change assessment, biodiversity, crown conditions, tree damage
Source: Journal of East African Natural History 97(1): 3-17
Year: 2008
The ice storm of January 1998 in the northeastern United States and adjacent Canada was an extreme example of severe weather that injures trees every year. Broken branches, split branch forks, and snapped stems are all examples of storm injury.
Author(s): Kevin Smith, Walter Shortle, Kenneth Dudzik
Keywords: storm injury, ice storm 1998, injured trees, trees ice storm, broken branches, psplit forks, stem snaps, tree damage, epicormic branches, Patterns of Storm Injury and Tree Response, NA-TP-02-01
Source: USDA Forest Service,
Northeastern Research Station,
Northeastern Area, State and Private Forestry
Year: 2001
Case histories of five tussock moth outbreaks that occurred in California and Oregon between 1935 and 1965 are discussed. Information is given on the size and duration of the outbreaks, the presence of natural control agents and the damage caused. Most of the outbreaks were eventually treated with…
Author(s): Boyd E. Wickman, Richard R. Mason, C.G. Thompson
Keywords: Douglas-fir tussock moth, Hemerocampa pseudotsugata, population, tree damage, DDT, control
Source: Gen. Tech. Rep. PNW-GTR-005. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station. 18 p
Year: 1973
Identifying the signs and symptoms of pathogens, insects, and other biotic and abiotic agents provides valuable information about the absolute and relative impacts of different types of damage across the forest landscape. In the USA, damage collection protocols have been included in various forms…
Author(s): KaDonna C. Randolph, Kerry Dooley, John D. Shaw, Randall S. Morin, Christopher Asaro, Marin M. Palmer
Keywords: abiotic damage, biotic damage, forest health monitoring, national forest inventory, tree damage
Source: Environmental Monitoring and Assessment
Year: 2021
A need to quantify the impact of a particular wind disturbance on forest resources may require rapid yet reliable estimates of damage. We present an approach for combining pre-disturbance forest inventory data with post-disturbance aerial survey data to produce design-based estimates of affected…
Author(s): Thomas C. Goff, Mark D. Nelson, Greg C. Liknes, Tivon E. Feeley, Scott A. Pugh, Randall S. Morin
Keywords: Iowa, wind disturbance, tree damage, tree mortality, forest inventory, indirect estimation, derecho
Source: Forests
Year: 2021
Author(s): Thomas Brandeis, Consuelo Brandeis
Keywords: selective harvesting, tree damage, silviculture, logistic regression, residual tree mortality
Source: Forest Science
Year: 2021
Ice storms occur frequently in northeastern North America. They damage and kill trees, change the structural characteristics of a forest, and may importantly alter the goods and services that owners realize from their land. This literature review summarizes 90 years of relevant information, mainly…
Author(s): Martin J. Kraemer, Ralph D. Nyland
Keywords: ice storm, storm injuries to trees, hardwood forests, tree damage
Source: Gen. Tech. Rep. NRS-60. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 29 p.
Year: 2010