ARUNACHAL PRADESH PUBLIC SERVICE COMMISSION
FORESTRY: PAPER

Time: 3 (Three) hours Full marks: 100
(Group iscompulsory. AttemptanyFOUR questionsfrom Group
GROUP-A
(This Group is COMPULSORy)
Q.l. Attempt any 10 2x10=20
What is sheet erosion?
List out important types of inoculum for VAM fungi.
Give a list of suitable plant species for cold desert.
What is second cycle seed orchard?
What are phenotype and genotype?
What are regular and irregular forests?
What is acid rain? Write down its effects on plants.
What is biological magnification?
List out role of social development institutions in JFM.
What is allay cropping?
Write down the role ofVan Vigyan Kendras.
What is shelter belt?

GROUP-B
(Answer any Four.)
Q. 2. Attempt any 8 (eight) 2.5x8=20
Write down the causes ofwatershed deterioration.
What are major processes involved in the development ofsoil profile?
What do you know about heritability?
What are clonal and seedling seed orchards?
What is photochemical smog?
What is seed certification?
What is cleft grafting?
Write down the objectives participatory assessment.
Write down the characteristics of mangroves.
What you know about environmental impact assessment?

Q.3. Attempt any 5 (five) 4x5=20
Discuss the practices to be followed for controlling wind erosion.
What is the importance of mist chambers in vegetative propagation?

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Why natural regeneration of Cedrus deodara is not satisfactory? Discuss the criteria for selection of plus trees for increasing timber production? What is global warming? How it can be controlled? What is pollarding? Write down its significance. What is conversion? Is it a system or not? Justify your statement.
Q.4. Attempt any 4(four) 5x4=20
List out various soil conservation regions in India? Explain different phases of watershed development. What are sand dunes? What steps are required for stabilization of sand dunes? What are the important functions ofmycorhiza? What practices are adopted to avoid root coiling in polythene bags?
Q.5. Attempt any 2 10x2=20
Explain the processes of development of gully. Write down various problems caused by soil erosion. Discuss the rehabilitation of mangrove ecosystem in India.
Q.6. Attempt any 4 (four) 5x4=20
How weeds can be controlled by biological methods? List out the differences between primary and secondary air pollutants. Discuss silviculture ofAcacia catechu. Write down the advantages of agroforestry. What are the advantages and disadvantages of clear felling systems?
Q.7. Attempt any 2 10x2=20
Write on role of thinning in forest crops.

Discuss the reasons for taking up artificial regeneration on large scale nowadays. Discuss the effect of noise pollution on human health.
Q.8. "Social forestry is a forestry activity of the people, by the people and for the people" Discuss and justify the statement. 20
Q.9. Discuss the traditions, customs and culture of major tribes of NE India. 20 Ql0. Discuss the role of urban forestry in improvement and expansion of green networks. 20

fl-MM
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