________ is merely a modification of the uniform system where large quantities of advance growth of various ages and size even up to trees of 40 cm diameter are retained as part of the future crop:

Related Mcqs:

1. In which system that the regeneration of the compartment is started form natural foci or groups of advance growth?

   A. Uniform system
   B. Group system
   C. Clear strip system
   D. None of these

2. A yield table for any species gives the following information on per acre basis for different site qualities and at various ages of crops:

   A. Age (5, 10, 15, 20 or 25 years)
   B. Main crop
   C. Thinning
   D. Final yield
   E. All of the above

3. Various fungi are known to accumulate considerable quantities of divalent metal such as:

   A. Cadmium
   B. Zinc
   C. Lead
   D. All of the above

4. 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

5. Opening of canopy even young crop more or less even aged and uniform felling happing under:

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

6. Common combinations of the agroforestry system in Pakistan are: Trees species: Agricultural crops grown with trees:

   A. Poplars: wheat / maize / turmeric / sugarcane / vegetables / fodder
   B. Eucalypts: wheat/sunflower/tomatoes/potatoes/chilies
   C. Simal: maize/sunflower/vegetables/fodder
   D. Shisham: turmeric/wheat/maize/vegetables
   E. All of the above

7. Form of forest produced by retaining certain trees of the old crop after regeneration is completed known as:

   A. High forest with standards
   B. Selection system
   C. Two-storied high forest
   D. None of these

8. Division of trees in various groups is:

   A. Evergreen
   B. Deciduous
   C. Both (a) & (b)
   D. None of these

9. Measurement of Diameter several instruments are used for measuring the diameters of trees depending on such circumstances as the position and condition of the part of the tree that is to be measured, the degree of accuracy required, and the portability, etc., of the instrument:

   A. The Rule
   B. The caliper
   C. The Diameter Tape
   D. Dendrometers
   E. All of the above

10. Diseased trees (k) including those which are infected with parasites to such an extent that their growth is seriously affected or that they are a danger to their neighbours:

    A. Dominant
    B. Dominated and suppressed
    C. Both (a) & (b)
    D. None of these