Demonstration of Ecosystem Management Options Study
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DEMO Home > About Us > Treatment Implementation
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Treatment Prescriptions and Implementation
By design, all harvest and postharvest prescriptions were applied consistently
among the treatment units within a block. Among blocks, however, methods
of harvest, slash treatment, and planting details varied as a function
of topography, physical environment, and forest composition and structure.
Details on harvest procedures, treatment of down woody material, retention
and creation of snags, and reforestation can be found in: Aubry,
K.; Amaranthus, M.; Halpern, C.; White, J.; Woodard, B.; Peterson, C.;
Legoudakis, C.; Horton, A. 1999. Evaluating the effects of varying levels
and patterns of green-tree retention: experimental design of the DEMO
study. Northwest Science. 73(Special Issue): 12-26.
Harvests were completed in fall 1997 (3 blocks) and 1998 (3 blocks). Among the eight blocks originally selected, harvest was not implemented at two (Little River and Layng Creek).
Patterns of ground disturbance and slash accumulation among harvest treatments are summarized here. See also: Halpern, C.; McKenzie, D. 2001. Disturbance and post-harvest ground conditions in a structural retention experiment. Forest Ecology and Management. 154: 215-225.
US Forest Service - Pacific Northwest Research Station, Demonstration
of Ecosystem Management Options
Last Modified: Thursday,27March2008 at12:34:04EDT