Table 1 Measures of environmental site characteristics and stand structure patterns.
| Â | Measures |
|---|---|
Climate | Annual precipitation, actual annual evaporation, summer evaporation |
Terrain | Aspect folded to reflect potential moisture status (= |180 − |aspect − 225||; McCune 2007), elevation, slope shape, slope aspect, percent slope, potential direct incident radiation and heat load (both indices of solar interception), sixth field watershed membership |
Geology and soils | Parent material, surface soil horizon depth, percent clay, percent silt, percent sand, cation exchange capacity, pH |
Stand structure | Tree basal area, shrub density |