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Large Woody Debris Mobility Areas In A Coastal Old-Growth Forest Stream, Oregon, Beth Marie Bambrick
Large Woody Debris Mobility Areas In A Coastal Old-Growth Forest Stream, Oregon, Beth Marie Bambrick
Dissertations and Theses
This study uses a spatial model to visualize LWD mobility areas in an approximate 1km reach of Cummins Creek, a fourth-order stream flowing through an old-growth Sitka spruce-western hemlock forest in the Oregon Coast Range. The model solves a LWD incipient motion equation for nine wood size combinations (0.1m, 0.4m, 1.7m diameters by 1.0m, 6.87m, 47.2m lengths) during the 2-year, 10-year, and 100-year discharge events. Model input variables were derived from a combination of field survey, remotely sensed, and modeled data collected or derived between June 2010 and July 2011. LWD mobility map results indicate the 2-year discharge mobilizes all …