Von Mantel’s formula is:
A.Based on idea of relationship between volume
B.Increment Mental in 1852 formulated it.
C.Both (a) & (b)
D.None of these
Category: Sustained Yield Regulations Mcqs
What is meant by drawbacks?
A.It stresses the removal of only part of mature trees which is against economic and silvicultural grounds
B.If a forest is in a poor condition, sustained yield management will provide low regular yield
C.Both (a) & (b)
D.None of these
What is the object of sustained yield?
A.Use of forest resource at a constant level which it can sustain in perpetuity at a given intensity of management
B.Continuous supply of products from forests in existing stage
C.To facilitate organization and administration
D.All of the above
What is increment?
A.The increase in girth, diameter, basal area, height, volume, quality
B.Value of individual tree or crops during a given period
C.Utilizable portions of total woody growth goes on increasing
D.All of the above
Idea ws first enunciated by French forester de Liocourt in 1898 who said:
A.In selection forest, the stem numbers fell off from lower to higher dia classes in a geometric progression
B.So there was a constant ratio between numbers in successive dia classes from lowest to the highest
C.Both (a) & (b)
D.None of these
From yield table we determine:
A.Future increment of even aged crop can be from valid yield table
B.Under stocked stands tend to approach fully stocked stands with increase in age, though more rapid growth than the latter
C.Both (a) & (b)
D.None of these
