Azimuth of grid approx. 21 degrees Holt Research Forest 1 acre 64m x 64m .405 ha 1 hectare 100m x 100m 2.47 ac
Instructions Grid Study
Select species of interest on one or more color menus. Intensity of color shows prevalence of species. Choosing the same species under all three colors gives greyscale. Mouseover map for populations of each map unit. Black units mean 0 (or very low); no color means no data.
  Example:
Leave the default species selected;
select the 4sqm regeneration study;
click through the years in sequence and notice the complete disappearance of new oaks (green).