Basal area definition

Basal area means the effective surface area available to transmit the treated effluent from the filter media in a mound system into the in-situ receiving soils. The perimeter is measured at the interface of the imported fill material and in-situ soil. On sloping sites, only the area down-gradient from the up-slope edge of the distribution media may be included in this calculation.
Basal area means the area in square feet of the cross section of a tree bole measured at 4 1/2 feet above the ground.
Basal area means the area of the cross-section of the stem of a tree taken at a point of measurement 1.37 m (4.5 ft) above the point on the tree where the ground meets the stump in an undisturbed state at the base of the tree.

Examples of Basal area in a sentence

  • Basal area - $100 for each square metre of basal area below the minimum specified.

  • Basal area of this outer 20-foot wide area shall be computed every 100 feet along the stream to ensure even distribution of forest vegetation and shall be based on all trees measured at 4.5 feet from ground level.

  • Basal area loading rate: When a disposal area is designed a minimum of 18 inches above original grade with backfill meeting the requirements of Section 11(E)(2), the disposal area in the backfill may be sized at a minimum of 3.3 square feet per gpd, provided the basal area and down slope fill extension footprint is equal to the basal area of a stone bed disposal field sized on the minimum design flow for the original soil.

  • Basal area growth-growing stock relations were considerably weaker.

  • Basal area to be protected from all activity.b Evaluate conditions 12 inches below limitations if possible.c Based on peak daily design flow.


More Definitions of Basal area

Basal area means the area in square feet of the cross section of a tree bole measured at 4 1/2 feet above the ground. "Bedrock hollows" (colluvium-filled bedrock hollows,
Basal area means the area of the cross-section of a tree stem derived from DBH.
Basal area means the area of a tree trunk’s cross section, measured outside the bark.
Basal area means the total cross sectional area of all live commercial species of trees expressed as square feet per acre and on individual trees, is measured at a point four and one-half feet above the ground.
Basal area means the cross-sectional area of a tree at breast height calculated from diameter at breast height.
Basal area of a tree means the cross-sectional area of a tree calculated using the dbhob of the tree;
Basal area of a tree means the area of a cross-section of its trunk, as measured 1.3 metres above ground level prior to the logging of the tree.