B.S.F. or B.Sc.F. Bachelor of Science in Forestry Study Guide 2026

The streamflow's velocity is calculated by dividing the flow volume (Q) by the channel area (A), using the formula V = Q/A. First, the flow volume must be converted from cubic meters per hour to cubic meters per second. A flow volume of 6,000 cubic meters per hour converts to approximately 1.667 m³/s. Dividing this by the channel area of 3 m² yields a velocity of 0.556 m/s. For the answer to be 0.056 m/s, the flow volume would need to be 600 m³/hr, indicating a potential typo in the question's stated flow volume.

Stocking describes how well a site is occupied by trees, often expressed relative to a fully stocked reference condition.

Aster yellows is a well-known plant disease caused by a phytoplasma, which is a type of bacteria lacking a cell wall and residing in the phloem of plants. This disease affects a wide range of herbaceous plants, including asters, carrots, and lettuce, causing symptoms like yellowing, stunting, and abnormal flower development. The other options are caused by bacteria (Fire blight), oomycetes (Late blight), or fungi (Rhizosphaera needlecast).

Systematic sampling places plots at fixed, regular intervals (e.g., on a grid), providing even spatial coverage and simplicity in the field.

The selection system removes individual or small groups of trees continuously, maintaining trees of all ages and sizes across the stand.

Spatial resolution defines the minimum ground area represented by one pixel; a 30-meter resolution means each pixel covers a 30 × 30 m area on the ground.