|For the purposes of this survey, mature trees included
all trees over 2m in height.
Within the individual areas,
trees of each species were counted. These results were then expressed as percentages
of the total for that area. i.e. Silver Birch make up 76% of all the trees on the Mound.
For the tallest tree of each species in an area, its height was
measured using a clinometer. (see below). The results were recorded in tables.
(example table below.)
Finally the presence of all the mature tree species was recorded in
the overall species list. (see "results" below.)