What is yield in forestry?

What is yield in forestry?

• A. Average stand density.
• B. Rate of leaf drop.
• C. Total amount available for harvest at a given time.
• D. Increase in stand height over a period.

Answer: (C)

Yield is the total amount of merchantable timber that is available for harvest from a stand at a given time. It’s a measure of standing volume or mass that could be removed under current management, usually expressed in volume units (cubic meters, board feet, etc.) or weight. Yield depends on how large and how many trees are present, their species, age, and quality, as well as how the stand has been managed. This concept is distinct from stand density, which describes how many trees occupy an area, and from growth measures like height increase or leaf drop, which describe growth or phenology rather than how much wood is currently harvestable. For example, if a stand contains a certain amount of merchantable timber in situ, that quantity represents the yield available to harvest now. Growth increments tell you how much more could be produced in the future, but yield specifies what is harvestable at the moment.

Yield is the total amount of merchantable timber that is available for harvest from a stand at a given time. It’s a measure of standing volume or mass that could be removed under current management, usually expressed in volume units (cubic meters, board feet, etc.) or weight. Yield depends on how large and how many trees are present, their species, age, and quality, as well as how the stand has been managed. This concept is distinct from stand density, which describes how many trees occupy an area, and from growth measures like height increase or leaf drop, which describe growth or phenology rather than how much wood is currently harvestable. For example, if a stand contains a certain amount of merchantable timber in situ, that quantity represents the yield available to harvest now. Growth increments tell you how much more could be produced in the future, but yield specifies what is harvestable at the moment.