Area measurement (square measure) used primarily in the United States. One (1) acre is equal to 43,560 square feet, 4,046.86 square meters, or 0.4047 hectares.

One (1) acre equals 43,560 square feet.
One (1) acre equals 0.4047 hectares.
One (1) acre equals 10 square chains.
One (1) acre equals 160 square rods.
One (1) acre equals 160 square poles.
One (1) acre equals 160 square perches.
One (1) acre equals 4,840 square yards.
One (1) acre equals 4,046.856 square meters.
One (1) acre equals 0.0016 square miles.
One (1) acre equals 0.0016 sections.
One (1) acre equals 0.004 square kilometers.
One (1) acre equals 0.0000434 townships.
One (1) acre equals 1.183676 arpents.
One (1) acre equals 4.0 roods.

The direction in which a slope faces, usually recorded as a bearing or azimuth.

On a per tree basis, basal area is the surface area in square feet of the cross section of the tree bole at breast height. On a per acre basis, it expresses the total basal area for all trees within that acre. It is an efficient and logical measurement of stand density and is the basis for many silvicultural prescriptions and forest management activities.

Singular: Board foot; Plural: Board feet
A board foot is a lumber measurement equal to a board or plank of wood 1 inch thick and 12 inches on each side. The formula for calculating board feet of sawed lumber is bd ft = thickness(in) x width(in) x length(ft)/12. For example, a board that is 1 inch thick, 12 inches wide, and 10 feet long contains 10 board feet of lumber(1x12x10/12=10).
Also known as "Board feet of lumber".

A set of land management guidelines that emphasize soil conservation and water quality. BMP's are often formulated and adopted at the state level.

Term used for a younger (generally less than 120 years old) ponderosa pine that displays black colored bark

Singular: Board foot; Plural: Board feet
A board foot is a lumber measurement equal to a board or plank of wood 1 inch thick and 12 inches on each side. The formula for calculating board feet of sawed lumber is bd ft = thickness(in) x width(in) x length(ft)/12. For example, a board that is 1 inch thick, 12 inches wide, and 10 feet long contains 10 board feet of lumber(1x12x10/12=10).
Also known as "Board feet of lumber".

The unit of measurement for an estimate of the volume of lumber in logs or standing trees using a log rule.

1. A board foot is a lumber measurement equal to a board or plank of wood 1 inch thick and 12 inches on each side. The formula for calculating board feet of sawed lumber is bd ft = thickness(in) x width(in) x length(ft)/12. 2. One (1) board foot equals 1 inch x 12 inches x 12 inches. One (1) board foot equals 1 inch (thick) x 12 inches (width) x 1 foot (length). One (1) board foot equals 144 cubic inches.

The trunk of a tree.

A unit of length used in the metric system that is equal to 1/100 (0.01) meters. One (1) centimeter (cm) is equal to 0.3937 inches (in). For more information, see Centimeter equivalents and conversions or the various Converting centimeters to ... entries.

One (1) centimeter (cm) is equal to 0.3937 inches (in).
One (1) centimeter is equal to 0.01 meters (m).
One (1) centimeter is equal to 0.00001 kilometers (km).
One (1) centimeter is equal to 0.0328 feet.
One (1) centimeter is equal to 0.0497 links.
One (1) centimeter is equal to 0.0109 yards.
One (1) centimeter is equal to 0.002 rods, poles, or perches.
One (1) centimeter is equal to 0.0005 chains.
One (1) centimeter is equal to 0.00005 furlongs.
One (1) centimeter is equal to 0.000006 miles.
See the various Converting centimeters to... entries for conversion examples.

A usually metal chain used to measure length and distance. Less commonly used in land surveys than a Gunter's or surveyor's chain, the engineer's or Ramsden's chain is 100 feet in length, with 100 1-foot links. The terms "engineer's chain" and "Ramsden's chain" apply primarily to the measuring utensil itself and not to any particular unit of length.

A common forestry and land survey term that is equivalent to 66 linear feet. Often referred to as simply "chain", this term is more formally known as the surveyor's or Gunter's chain. A chain is broken into 100 equal parts, or links. One (1) mile is equal to 80 chains. A one (1) mile square piece of land (one section or 640 acres) is 80 chains on each side. Although an engineer's or Ramsden's chain is also used to measure length in surveys, the generic term "chain" when used in reference to land measurements refers to the unit of length (66 feet) represented by the Gunter's or surveyor's chain. For more chain conversions, equivalents, and examples, see Chain equivalents and conversions or the various Converting chains to... examples.

A chain is broken into 100 equal parts, or links. A one (1) mile square piece of land (one (1) section or 640 acres) is 80 chains on each side.
One (1) chain is equal to 66 feet.
One (1) chain is equal to four (4) rods, poles, or perches.
One (1) chain is equal to 100 links.
One (1) chain is equal to 22 yards.
One (1) chain is equal to 20.12 meters.
One (1) chain is equal to 0.0125 miles.
One (1) chain is equal to 0.0201 kilometers (km).
One (1) chain is equal to 0.1 furlongs.
One (1) chain is equal to 792 inches.
One (1) chain is equal to 2,011.684 centimeters (cm).
See the various Converting chains to... entries for conversion examples.

Woody material, generally from dead trees, stumps, limbs, or roots; in various lengths and sizes, states of decomposition, and spatial arrangements; positioned at or near the forest floor.

1. Usefuleness or desirability as a business, commodity, or investment. 2. A quality or characteristic of an investment, property, goods, or services such that it can be sold or traded at a profit.

Diameter of a tree bole measured at a height of 4.5 feet. Usually recorded in inches (in) or centimeters (cm).

1. Variation in the physical characteristics of ecosystems across a landscape caused by variation in soil, slope, aspect, elevation, climate, and geology, and the accompanying variation in biotic communities. Also known as ecological or biological diversity.

Plural form of foot (ft). A foot is a unit of length equal to 12 inches, taken from the average length of the human foot. One (1) foot is equal to 0.3048 meters. See also Foot (feet) equivalents and conversions and the various Converting feet to... entries.

The historic natural or man-made fire patterns in a given area; the frequency, intensity, severity, and distribution of historic fires, especially wildfires.

One (1) foot is equal to 12 inches.
One (1) foot is equal to 0.3048 meters.
One (1) foot is equal to 30.48 centimeters.
One (1) foot is equal to 0.0152 chains.
One (1) foot is equal to 0.0015 furlongs.
One (1) foot is equal to 0.0003 kilometers.
One (1) foot is equal to 1.5152 links.
One (1) foot is equal to 0.00019 miles.
One (1) foot is equal to 0.0606 rods, poles, or perches.
One (1) foot is equal to 0.3333 yards.
See the various Converting feet to... entries for conversion examples.

See "US Forest Service"

A board foot is a lumber measurement equal to a board or plank of wood 1 inch thick and 12 inches on each side. The formula for calculating board feet of sawed lumber is bd ft = thickness(in) x width(in) x length(ft)/12. For example, a board that is 1 inch thick, 12 inches wide, and 10 feet long contains 10 board feet of lumber(1x12x10/12=10).