Reference Stands

There are 38 permanent sample plots in and adjacent to the H.J. Andrews Experimental Forest in unmanaged forest stands.  This network of plots is part of a larger Permanent Sample Plot network in Oregon and Washington.

TV010 - Long-term growth, mortality and regeneration of trees in permanent vegetation plots in the Pacific Northwest, 1910 to present

Vegetation Plots in Managed and Reference Small Watersheds

In eight of the experimental watersheds vegetation dynamics are studied with systematic small-plot designs.  Plot size, arrangement, methods and establishment date vary among the watersheds:

TP073 - Plant succession and biomass dynamics following logging and burning in Watersheds 1 and 3, Andrews Experimental Forest, 1962 to Present

TP041 - Post-logging community structure and biomass accumulation in Watershed 10, Andrews Experimental Forest, 1974 to present

TP114 - Plant biomass dynamics following logging, burning, and thinning in Watersheds 6 and 7, Andrews Experimental Forest, 1979 to present

TP115 - Plant biomass dynamics in old-growth Watersheds 8 and 9 at the Andrews Experimental Forest, 2003 to present

Stand-level Management Studies

TV052 - Forest structure and biomass in early successional harvest units of the Andrews Experimental Forest (ESSA), 1999 to present 

Ecoshare Blue River Landscape Strategy

FS123 - Uneven Aged Management Project (UAMP), Andrews Experimental Forest

Young Stand Thinning and Diversity Study

WE008 - Ground-dwelling vertebrates, birds, habitat data on the Willamette National Forest, Oregon (Young Stand Thinning and Diversity Study), 1991-2012

Gap Study

Ecosystem responses to the creation of tree-fall gaps in the western Cascades of Oregon and Washington (Experimental Gap Study), 1990 to 2006