The ability to pace off a distance with reasonable accuracy is useful
for a variety of woodland management practices and is easy to master.
A tape measure should be used when exact distances are critical such as
when one needs to know the radii of a plot sample or determine exact property
boundaries, but pacing can be used to find boundaries easily and reliably,
to create transect lines for a sample cruise, to pace off 66 feet when
calculating tree height with a scale stick to check the width of buffer
zones, and to estimate the sizes of compartments.
Follow these steps to determine
the length of your pace.
1. Starting with one foot,
count a pace every time the opposite foot is put down. With a measuring
tape or length of rope, mark off 100 feet in a moderately dense forest
stand.
2. Using a normal, comfortable
stride, pace the 100 feet about 4 times, noting each time the number
of paces it takes to cover the distance. (Note: An exaggerated pace
is less standard in length and impossible to maintain through forest
cover.)
3. Divide the sum of the
total number of paces by the number of times you paced the distance.
This figure represents the average number of paces it took to walk the
100 feet.
4. The length of your pace
will be equal to 100 feet divided by the average number of paces it
took to travel the 100 feet (calculated in step 3).
Example 1
A person with an average pace of 5 feet wishes to find a boundary marker
138 yards away. How many paces will it take to cover this distance?
1. First convert 138 yards
to feet: 138 yd. x 3 ft. = 414 ft.
2. Then divide the distance
(in feet) by the pace length: 414 ft. divided by 5 ft. = 83 paces (rounded
to the nearest whole pace).
Example 2
A person with an average pace of 5.6 feet found that a rectangular compartment
measured 64 paces by 97 paces. What is the area (in acres) of the compartment?
1. First convert paces to
feet: 64 paces x 5.6 = 358.4 ft., and 97 paces x 5.6 = 543.2 ft.
2. Next calculate the area
of the compartment in square feet: area of a rectangle = length x width,
so area = 358.4 ft x 543.2 ft. = 194,682.9 sq. ft.
3. Then divide the area of
the compartment by the number of square feet in an acre (43,560): thus
194,682.9 sq. ft. divided by 43,560 sq. ft. = 4.5 acres.
Goff, G., Lassoie, J., Layer,
K. Timber Management for Small Woodlands, Information Bulletin
180, Cornell
Cooperative Extension, Cornell University, Ithaca, NY 14853 |