Appendix D - Definitions.pdf

Appendix D

APPENDIX D – DEFINITIONS

1. Scalping – areas where the grass is mowed too close to the ground because of uneven ground underneath. When grass is mowed too close to the ground it frequently appears as an unsightly yellow scar. Typically scalping occurs when mowing on hill sides and around obstacles on uneven terrain.

2. Xeriscaping - a landscaping method that employs drought-resistant plants in an effort to conserve resources, especially water, and reduce yard trimmings. Xeriscaping uses decorative brick, lava rock, mulch and low water vegetation such as bougainvillea, hibiscus, cactus, and evergreen ground covering plants to eliminate the high costs of maintaining 2”-4” grass fields and reduce the cost of watering.

3. Pocket Urban Forests – a landscaping technique of planting indigenous local trees and shrubs in clusters to cut down on large open areas of grass that are regularly maintained. This method would be practical on-bases that receive a large amount of rainfall, and as a result do not irrigate.

4. Seed Head Inhibitor – an agent or combination of agents applied to grass areas prone to the production of seed heads to suppress the seed heads and reduce the frequency of mowing required.

5. Rutting – visible marks left on the grounds from the wheels of mowing and edging equipment.

6. Topping – The reduction of a tree’s size using heading cuts that shorten limbs or branches back to a predetermined crown limit. Topping is not an acceptable pruning practice.

7. Lion’s Tailing – The removal of an excessive number of inner, lateral branches from parent branches. Lion’s tailing is not an acceptable pruning practice.

8. Types of Pruning:

a. Cleaning – Selective pruning to remove to remove one or more of the following parts:

dead, diseased, and/or broken branches.

b. Thinning – Selective pruning to reduce density of live branches.

c. Raising – Selective pruning to provide vertical clearance.

d. Reduction – Selective pruning to decrease the height and/or spread.

Appendix D

9. Branch Bark Ridge – The raised area of bark in the branch crotch that marks where the branch and parent meet.

10. Caliper – The diameter of a tree measured at a point 6 inches above the ground line if the resulting measurement is no more than 4 inches. If the resulting measurement is more than 4 inches, the measurement is made at a point 12 inches above the ground line.

11. Diameter Breast Height (dbh) – The diameter of a tree measured at a point 4.5 feet above the ground line.

12. Trimming – Cutting of grass and other vegetation around grounds obstacles that prevent mowing.

13. Distinguished Visitor (DV) / Special Cut - Grass cutting in high profile areas of the base such as ceremonial areas, ornamental areas, distinguished visitor routes, quarters, and entrances. A DV cut is generally performed more frequently than other cuttings and the height range specified is usually smaller. Grass clippings are removed from the area and the end result is uniform in appearance, well-manicured, and complete.