Ecology and General Silviculture

A. Uniform system
B. Group system
C. Irregular system shelterwood system
D. Strip system

A. Uniform system
B. Group system
C. Irregular system
D. Strip system

A. The methods adopted for the regeneration of the crop
B. The character of the crops produced by such system
C. Distribution of the age-classes over the area of the forest
D. All of the above

A. Clear felling system
B. System of successive regeneration fellings
C. Both (a) & (b)
D. None of these

A. The soil should be kept moist as far as possible especially in the season of windstorms. Moist soil is less vulnerable to wind erosion than dry soil
B. Wind breaks by planting tree in rows or shelter belts of any means are effective in wind erosion
C. Both (a) & (b)
D. None of these

A. It is the process by which the crops constituting a forest are tended, removed and replaced by new crops, resulting in the production on woods of a distinctive form
B. Rearing of silk worm
C. It is a kind of upland watersheds
D. None of these

A. Splash
B. Sheet
C. Rill
D. Gully
E. None of these

A. Siltation
B. Soil creep
C. Suspension
D. All of the above

A. Removal of the natural vegetation cover
B. Cultivation of land by crops which expose the soil to direct rain impact and runoff water
C. Both (a) & (b)
D. None of these

A. Amount of rainfall
B. Slope length
C. Slope gradient
D. Soil erodibility
E. All of the above