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Filtering by: Subject Soil enzymology -- Northwest, Pacific Decade 1980-1989

An evaluation of four implements used to till compacted forest soils in the Pacific Northwest

Creator:

Andrus, Charles W., Froehlich, Henry A., and Oregon State University. Forest Research Laboratory

Resource Type:

Technical Report

Full Text:

Pacific Northwest to attempt to rehabilitate the soil in skid trails and landings. Tillage of the soil
Impacts of forest practices on surface erosion

Creator:

Sidle, Roy C.

Abstract:

Surface erosion can be initiated by forest practices such as timber harvest, road construction, and site preparation. A variety of management and control measures can help reduce this erosion. Surface erosion is generated by soil and operational conditions that are conducive to or cause disturbance and compaction. By using good...

Resource Type:

Technical Report

Full Text:

in Pacific Northwest Clearcuts Yarding method Bare soil Compacted soil Percent Percent Tractor
Simulation and field validation of heat and water flow during soil freezing and thawing

Creator:

Pikul, Joseph Lawrence

Abstract:

Freeze/thaw cycles are numerous in agricultural soils of the Pacific Northwest. Potential loss of soil by erosion is high whenever a soil thaws from the surface creating a saturated soil overlying an impermeable frozen layer. Field studies were conducted to investigate the effect of surface residue on soil freezing. Residue...

Resource Type:

Dissertation

Full Text:

Larry Boersma Freeze/thaw cycles are numerous in agricultural soils of the Pacific Northwest