🌲Forestry MCQs
Forestry MCQs
498 MCQs121
Mulching helps in:
AMoisture conservation
BWeed control
CImprovement of soil structure
DIncreasing soil fertility
122
Current annual increment (CAI) means:
A& (
BD. None of these
CBoth (
123
Need of determination of increment means:
AChecking correctness of past management
BChecking silvicultural or management practices
CIt also helps in finding rotation
DDecision about optimum level of residual growing stock. It depends on rotation E. All of the above
124
Measurement of increment of crop is:
AFrom yield table
BEstimation of movement rations from average diameter growth by diameter class
CIncrement determination by control method
DIncrement by continuous forest inventory (CFI) E. All of the above
125
From yield table we determine:
A& (
BD. None of these
CBoth (
126
Estimation of movement ratios from average diameter growth by diameter classes is / are :
A& (
BD. None of these
CBoth (
127
Movement ration means:
AEstimation of movement ration from actual diameter growth of individual tree
B4 trees will remain in 6″ dia class
C5 trees will move to 7″ dia class
D6 trees will move to 8″ dia class E. All of the above
128
Increment determination by control method is / are:
AIn Swiss, forest are managed intensively under selection system
BEach compartment is enumerated 100% at 5-6 years intervals
CRecords are kept by compartments of all mortality and all cut trees in interval between two successive counts
DAll of the above
129
Increment by continuous forest inventory (CFI) means:
AUsed in USA and Canada
BLarge area under first, they can’t adopt other method
CSometime metallic rod is fixed in centre
DMeasured after 5 or 10 years E. All of the above
130
The standard grades of ordinary thinning is:
ALight Thinning (A-Grade)
BModerate Thinning (B-Grade)
CHeavy Thinning (C-Grade)
DVery Heavy Thinning (D-Grade) E. All of the above