LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc. DEGREE EXAMINATION – PLANT BIOLOGY & PLANT BIO-TECH.

FIFTH SEMESTER – APRIL 2012

PB 5410 – FORESTRY

 

 

Date : 30-04-2012              Dept. No.                                        Max. : 100 Marks

Time : 1:00 – 4:00

 

  Part – A

                                                           

Answer all the following, each answer within 50 words:                               (10 x 2 = 20 marks)

 

1. Write about the salient features of alpine.
2. Bring out the major events of hydrosere.
3. Give the significance of sacred grooves.
4. Comment on biological control of pests in forests.
5. Write short notes on coppicing system.
6. What are recreational forests? Give example.
7. Write the role of remote sensing in forest protection.
8. Enumerate the sources and uses of various forest minor products.
9. Write about the roles of WWF.
10. Give details on Forest Conservation act 1980.

 

Part – B

 

Answer the following, each answer  within 500 words.  Draw diagrams wherever necessary:

 

(5 x 7 = 35 marks)

11. (a) Illustrate and explain the forest ecosystem.

Or

(b) Describe about various positive interactions of biotic components.

 

12. (a) Explain the concept of Biosphere Reserve.

Or

(b) Give details on various biological destructive forces of forests. Add a note on

preventive the methods.

 

13. (a) Bring out nursery techniques followed in forestry.

Or

(b) Write notes on the objectives and types of social forestry.

 

14. (a) Explain the methods to determine the age of a tree.

Or

(b) Write about the qualities of wood with timber value.

 

15. (a) Describe about various classes of National Forest Development program.

Or

(b) Explain about Forestry Organization and Administration.

 

 

 

 

Part – C                                                         

 

Answer Any THREE of the following, each within 1200 words, draw diagrams wherever necessary:

                                                                                               

                                                                                                                            (3 x 15 = 45 marks)

16. Describe the various factors that affecting the forest types.
17. Give various causes, types and prevention of forest fire.
18. Explain about high forest system of forest regeneration.
19. Write details about forest mensuration in terms of growth and biomass.
20. Explain the principles, objectives and features of National Forest Policy of India.

 

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