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Mechanical harvesting and associated logging activities have the capacity to compact soil across large portions of harvest units. Two thinning treatments (felled only versus felled and skidded) in 70- to 80-year-old ponderosa pine stands were replicated at three sites with volcanic soils in central…
Author(s): R.T. Parker, D.A. Maguire, D.D. Marshall, P. Cochran
Keywords: Site productivity, tree growth, ponderosa pine, compaction, volcanic ash, bulk density
Source: Western Journal of Applied Forestry. 22(2): 134-141
Year: 2007
A study was initiated during summer 2003 to evaluate site impacts associated with conversion of a slash pine stand to long leaf pine. Site impacts were evaluated by placing 10 transects over a subsection of the harvest tract and classifying the type of soil surface disturbance every 3 meters. Bulk…
Author(s): Emily A. Carter, John Fulton, Brian J. Burton
Keywords: bulk density, cone index, Coastal Plain, erosion, silt fence, disturbance class
Source: In: 2005 ASAE Annual International Meeting, Paper Number 058022: 1-15
Year: 2005
Three levels of organic matter removal (bole only; bole and crowns; and bole, crowns, and forest floor) and three levels of mechanical soil compaction (no compaction, moderate compaction, and severe soil compaction) were studied as they influence Douglas-fir (Pseudotsuga menziesii var.…
Author(s): Michael P. Amaranthus, Debbie Page-Dumroese, Al Harvey, Efren Cazares, Larry F. Bednar
Keywords: Douglas-fir, ectomycorrhizae, forest harvest, organic matter, reforestation, root tips, soil compaction, bulk density, western white pine
Source: Res. Pap. PNW-RP-494. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 12 p
Year: 1996
This study evaluated the effect on soil bulk density of yarding small-diameter Douglas-fir (Pseudosuga menziesii var. glauca (Beissn.) Franco) with a small tractor. Levels of compaction were measured before yarding and after one trip, three trips, and six trips by the tractor.…
Author(s): Michael P. Amaranthus, David E. Steinfeld
Keywords: Applegate Adaptive Management Area, Douglas-fir, forest harvest, solid compaction, bulk density, logging systems, tractor-yarding
Source: Res. Pap. PNW-RP-504. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 7 p
Year: 1997
Timber harvesting and mechanical site preparation can reduce site productivity if they excessively disturb or compact the soil. Volcanic ash-influenced soils with low undisturbed bulk densities and rock content are particularly susceptible. This study evaluates the effects of harvesting and site…
Author(s): Deborah S. Page-Dumroese
Keywords: bulk density, forest productivity, ash-cap soils, logging, logging effects, soil density, site preparation
Source: Res. Note INT-409. Ogden, UT: U.S. Department of Agriculture, Forest Service, Intermountain Research Station. 5 p
Year: 1993
Soil disturbance patterns and associated changes in soil physical status were measured in a study that evaluated the implementation of three alternative management prescriptions in an upland hardwood stand in northern Alabama, USA. Management prescriptions applied in this study consisted of a clear…
Author(s): Emily A. Carter, Robert B. Rummer, Bryce J. Stokes
Keywords: soil compaction, bulk density, soil strength, hardwood, Alabama, clear-cut, cone index
Source: Biomass and Bioenergy, Vol. 30: 1025-1034
Year: 2006
Soil properties were monitored in early spring and late fall for 3 years following hay meadow abandonment. Bulk density decreased, organic carbon increased, total porosity increased in the large pore fraction, and infiltration rate increased 100%. Earthworm activity was considered to be primarily…
Author(s): M. Dean Knighton
Keywords: bulk density, porosity, organic carbon, earthworms, infiltration
Source: Research Paper NC-146. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station
Year: 1977
Describes a portable hand-operated sampler and extractor for extracting undisturbed soil cores from rocky soils.
Author(s): Felix Jr. Ponder, Darrell E. Alley
Keywords: Forest soils, bulk density, soil sampling, root-soil-cores
Source: Research Note NC-371. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station
Year: 1997
Soil properties were related to infiltration rates as measured by single-ringsteady-head infiltometers. The properties showing strong simple correlations were identified. Regression models were developed to estimate infiltration rate from several soil properties. The best model gave fair…
Author(s): M. Dean Knighton
Keywords: bulk density, organic carbon, ground cover, pore volume, modeling
Source: Research Note NC-233. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station
Year: 1978
Bulk density and soil resistance to penetration were measured in ten, 3- to 11-ha operational units in overstocked, mixed-conifer stands in northeast Washington. Resistance was measured with a recording penetrometer to the 33-cm depth (13 in) at 10 stations on each of 8 to 17, 30.5-m-long, randomly…
Author(s): Johanna D. Landsberg, Richard E. Miller, Harry W. Anderson, Jeffrey S. Tepp
Keywords: Soil strength, penetration resistance, cone penetrometer, bulk density, commercial thinning, northeast Washington, ashy soils, yarding equipment, soil disturbance
Source: Res. Pap. PNW-RP-551. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 35 p
Year: 2003
https://www.fs.usda.gov/treesearch/search/query?f%5B0%5D=publication_keywords%3Abulk%20density