A.In Swiss, forest are managed intensively under selection system
B.Each compartment is enumerated 100% at 5-6 years intervals
C.Records are kept by copartments of all mortality and all cut trees in interval between two successive counts
D.All of the above
A.To protect masure trees from wastage
B.Molding growing stock into efficient machine
C.Optimum and regular yield
D.To meet the demand of the people
E.All of the above
A.Area method
B.Periodic yield and regeneration block (Cotta Formula)
C.Both (a) & (b)
D.None of these
A.Tree diameters include in a dia class in the present stand tables are distributed uniformly, about the class centre
B.Movement ration: Proportion of trees which will move onto next higher classes
C.Both (a) & (b)
D.None of these
A.From yield table
B.Estimation of movement rations from average diameter growth by diamerter class
C.Increment determination by control method
D.Increment by continuous forest inventory (CFI)
E.All of the above
A.Actual annual yield (Ya) in a forest should bear the same relationship to volume of actual growing stock (Va)
B.The normal annual yield (Yn) does to volume of normal growing stock (Vn)
C.Both (a) & (b)
D.None of these
A.Species composition
B.Stocking and density
C.Optimum stocking level
D.Age and size
E.All of the above
A.Number of trees in each size class
B.Passage of time from one dia class to another dia class
C.Casualty percentage
D.All of the above
A.Current annual increment (CAI)
B.Mean annual increment (MAI)
C.Both (a) & (b)
D.None of these
A.Every year, the volume of a growing tree or of a stand of trees, increases by quantity
B.But periodic annual increment after 5/10 years is taken to be CAI
C.Both (a) & (b)
D.None of these
