B.S.F. or B.Sc.F. Bachelor of Science in Forestry Forest Hydrology and Watershed Management 2

Question 1

Evapotranspiration (ET) in a forested watershed is the combined loss of water through:

Accepted Answer

Transpiration by plants and evaporation from surfaces

Answer

ET combines transpiration through leaf stomata and direct evaporation from soil, litter, and canopy surfaces into the total water vapor flux to the atmosphere.

Question 2

Which soil property most directly controls the rate of infiltration?

Accepted Answer

Bulk density and porosity

Answer

Bulk density and porosity determine pore space available for water entry; compacted soils have low porosity and reduced infiltration rates.

Question 3

The concept of 'peak flow' in watershed hydrology refers to:

Accepted Answer

The maximum instantaneous discharge during a storm event

Answer

Peak flow is the highest discharge rate recorded during a storm hydrograph and is critical for flood prediction and infrastructure design.

Question 4

Forest harvesting generally causes streamflow to:

Accepted Answer

Increase due to reduced evapotranspiration

Answer

Removing trees reduces evapotranspiration, so more precipitation reaches the stream, increasing annual water yield and peak flows.

Question 5

Best Management Practices (BMPs) in US forestry are primarily designed to:

Accepted Answer

Protect water quality during and after forest operations

Answer

Forestry BMPs are voluntary or regulatory guidelines for logging roads, stream crossings, and harvest operations specifically to minimize water quality impacts.

B.S.F. or B.Sc.F. Bachelor of Science in Forestry Practice Test

B.S.F. or B.Sc.F. Bachelor of Science in Forestry Practice Test

B.S.F. or B.Sc.F. Bachelor of Science in Forestry Forest Hydrology and Watershed Management 2