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Keyword: compaction

Monitoring Concerns

Pages Posted on: October 17, 2018
Burned SoilCompactionDisplacementGround CoverNutrient CyclingPuddlingRegenerationSurface Organics

Detrimental soil disturbance associated with timber harvest systems on National Forests in the Northern Region

Documents and Media Posted on: August 17, 2018
The National Forest Management Act of 1976 (NFMA) mandates that management systems “will not produce substantial and permanent impairment of the productivity of the land.” In response to this mandate, soil quality standards were developed for each Region of the USDA Forest Service. To comply with the NFMA mandate in the Northern Region, detrimental soil disturbance (DSD; a combination of compaction, rutting, severely burned soil, displacement, erosion, and soil mass movement) must not exceed 15% of the areal extent of a timber harvest unit when harvest and site preparation activities are complete. In the Northern Region, monitoring of post-harvest soil disturbance levels has been achieved using several methods since the soil quality standards were last revised in 1999. Despite the lack of a common monitoring protocol, the shared objective of all soil monitoring methods has been to find the areal extent of detrimentally disturbed soil on the harvest unit in order to determine the extent to which harvest activities meet the Regional standard. Document Type: Other Documents

Fuels planning: science synthesis and integration; environmental consequences fact sheet 14: Fuels reduction and compaction

Publications Posted on: August 01, 2018
Moving equipment and logs over the surface of forest soils causes gouges and ruts in the mineral soil, displaces organic matter, and can cause compaction. Compaction is the component of soil productivity most influenced by forest management, but the degree to which soils may be compacted depends on initial soil bulk density.

Development and use of a commercial-scale biochar spreader

Publications Posted on: August 16, 2016
Applying biochar to forest sites can be problematic and costly because of the need to keep the forest floor as undisturbed as possible during and after harvest operations. The Missoula Technology and Development Center of the U.S.

Detrimental soil disturbance associated with timber harvest systems on National Forests in the Northern Region

Publications Posted on: June 23, 2011
Maintaining site productivity on forested lands within the National Forest System is a Federal mandate. To meet this mandate, soil conditions on timber harvest units within the Northern Region of the USDA Forest Service cannot exceed a threshold of 15% areal extent of detrimental soil disturbance (DSD; defined as a combination of compaction, puddling, rutting, burning, erosion, and displacement).

Soil compaction monitoring of the Pool Timber Sale, Rio Grande National Forest, Colorado, 16 years after logging

Publications Posted on: September 30, 2008
We conducted a soil monitoring project in 1992 after a shelterwood harvest. One year after harvesting, we determined that 21.32 percent of the area in Unit 5 of the Pool Timber Sale was considered to have detrimental soil compaction. In 2007, we conducted another monitoring project on the same stand by the same person to determine the degree of soil compaction recovery on skid trails.

Effects of Machine Traffic on the Physical Properties of Ash-Cap Soils

Publications Posted on: February 20, 2007
With pressure and vibration on a soil, air spaces between soil particles can be reduced by displaced soil particles. Activity associated with heavy machine traffic increases the density of the soil and can also increase the resistance of the soil to penetration. This paper reviews research related to disturbance of forest soils with a primary focus on compaction in ash-cap soils.

Influence of skid trails and haul roads on understory plant richness and composition in managed forest landscapes in Upper Michigan, USA

Publications Posted on: March 24, 2006
We evaluated impacts of disturbance in interior haul roads and skid trails on understory vegetation by documenting the areal extent of these features and plant composition along 10 m x 100 m belt transects. Ten belt transects were sampled in each of three comparable northern hardwood forests under even-aged management. These forests were approximately 80 years old and were last entered for thinning 4-6 years prior to sampling.