Vegetation history classification for watersheds 1, 2, and 3 (1959-1990), Andrews Experimental Forest

Photos were interpreted for hydrologically relevant vegetation types (conifer, broadleaf, grasses and bare soil) and forest age class was determined for each year (1959, 1962, 1967, 1972, 1979, and 1990).
Vegetation data for functional groups (conifer, evergreen broadleaf, deciduous broadleaf) was aggregated from species data available in TP73 for the long term vegetation plots in Watershed 1.