From 1999 to 2005, Weyerhaeuser1 and Cascadia Forest Products conducted surveys to monitor retained habitat structure in 193 VR blocks, 98 benchmark unharvested sites (including pre-harvest experimental sites), 19 blocks with old remnant patches, 19 blocks with riparian reserves, 8 older clearcuts and 6 'scrub' sites. Additionally, 72 operational blocks have been re-measured 5 years after harvest. Measured habitat attributes included live trees (species, DBH, height), snags (species, DBH, height, decay class), coarse woody debris (CWD; species, diameter, decay class, height above ground), cover layers (canopy, small tree, shrub, herb, moss, litter, mineral soil), dominant shrub and herb species, and site series. Summaries are provided for major types of these attributes and for some important specific structures (e.g., large cedar snags, large well-decayed CWD, etc.). Many individually-tagged stems in the re-measured plots allow estimation of rates of growth, mortality, decay and snag fall over the first 5 years postharvest. The monitoring design allows several types of comparisons identified as priorities in the company?s Adaptive Management Framework.
by David Huggard
Huggard, David J.. 2005. Coast forest strategy adaptive management program: habitat monitoring 1999 to 2005 - summary and data report. Forest Investment Account (FIA) - Forest Science Program. Forest Investment Account Report. FIA2005MR211
Topic: FLNRORD Research Program
Keywords: Forest, Investment, Account, (FIA)
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