FORESTRY
Paper-11
. Allowed: Three Hours) (Maximum Marks 200)
INSTRUCTIONS
Candidates should attempt questions 1 and 5
which are compulsory, and any THREE of the
remaining questions, selecting at least ONE
question from each Section.
All questions carry equal marks.
Marks allotted to parts of a question are
indicated against each.
Answers must be written in ENGLISH only.

SECTION-A

1. Answer any J?OUR questions from the following
10x4
(a)Explain the situations under which a forest becomes abnormal.
(b)Describe reference point of diameter/girth measurement on a standing tree.
(c)Explain various types of maps prepared by Working Plan Officer.
(d)How is yield regulated in a forest which is worked
under clear felling system
How is remote sensing advantageous as compared
to ground surveys
2.(a)Discuss Smythies Safeguarding formula for annual
harvest of timber from a selection forest. 20
(b)Explain principles of height measuring instruments. 10
(c)What is quarter girth formula Why is it preferred
for calculation of log volume 10

Define rotation and discuss different types of
rotations giving suitable examples. 20
(b)Discuss strategies and plans adopted for the
treatment of catchment areas. 10
(c)What is yield table How contents of yield table
is utilized in forestry 10
4.(a)Describe how you would continue the line with
the chain only, when
(i)Large river interrupts the chain line, and
forest area comes across the chain line.
(b)Explain the terms
(i)Whole Circle Bearing, arid
(ii)Quadrantal Bearing.
(c)Describe, with sketches, Suspension Bridge. 10

5.Attempt any FOUR questions from the following:- 10x4
(a)List ten main bamboo species of commerce in india
with their scientific names and the State of origin.
(b)Give legal definition of forests in india. Write about
the major groups of forest types of India.
(c)Explain "adiabatic lapse rate".
(d)Define micro-climate giving suitable examples.
(e)Write common and scientific names of ten tree·
species yielding resins and oleoresins.

6.(a)Discuss the factors that inhibit tree growth in Alkali
and Saline soils. how is alkali soil managed for
tree species plantation Write scientific names of
four tree species suitable for plantation in Alkali
soils. 20
(b)Describe the initial causes of secondary succession.
Write various seral stages of succession leading to
the development of Shorea robusta forests. 10
(c)How severe is the damage of Ganoderma in lndian
Forests Discuss with some case history. 10
7.(a)What are the wood composites? How they are
prepared What are the common glueing agents ·
used in wood composites 20
(b)What are the effects of particulate air pollutants
on the regeneration of a forest ecosystem
Discuss. 10
(c)How grazing is managed for the browsing animals
Discuss various management options for
sustainable grazing in forest. 10
8.(a)Write the constitution of National Board of
Wildlife. Explain the provisions of the Sections
of Wildlife (Protection) Act 1972, used to declare
an area as "Sanctuary". 20
(b)Describe the tangible and intangible benefits of
forests. 10
(c)Discuss the various common defects encountered
after harvesting of the wood during stacking.