CSS :: Sustained Yield Regulations
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1. |
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 |
Answer: Option D
Explanation:
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2. |
Variation of volume increment with age is: |
A. |
Current annual increment (CAI) |
B. |
Mean annual increment (MAI) |
C. |
Both (a) & (b) |
D. |
None of these |
Answer: Option C
Explanation:
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3. |
Current annual increment (CAI) means: |
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 |
Answer: Option C
Explanation:
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4. |
Need of determination of increment means: |
A. |
Checking correctness of past management |
B. |
Checking silvicultural or management practices |
C. |
It also helps in finding rotation |
D. |
Decision about optimum level of residual growing stock. It depends on rotation |
E. |
All of the above |
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Answer: Option E
Explanation:
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5. |
Measurement of increment of crop is: |
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 |
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Answer: Option E
Explanation:
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6. |
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 |
Answer: Option C
Explanation:
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7. |
Estimation of movement ratios from average diameter growth by diameter classes is / are : |
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 |
Answer: Option C
Explanation:
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8. |
Movement ration means: |
A. |
Estimation of movement ration from actual diameter growth of individual tree |
B. |
4 trees will remain in 6" dia class |
C. |
5 trees will move to 7" dia class |
D. |
6 trees will move to 8" dia class |
E. |
All of the above |
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Answer: Option E
Explanation:
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9. |
Increment determination by control method is / are : |
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 |
Answer: Option D
Explanation:
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10. |
Increment by continuous forest inventory (CFI) means: |
A. |
Used in USA and Canada |
B. |
Large area under first, they can't adopt other method |
C. |
Sometime metallic rod is fixed in centre |
D. |
Measured after 5 or 10 years |
E. |
All of the above |
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Answer: Option E
Explanation:
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