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uksV% ;g iz'u i=k pkyhl (40) vadksa dk gSA tks nks (02) [k.Mksa d rFkk [k esa foHkkftr gSA izR;sd [k.M esa fn, x, foLr`r funsZ'kksa ds vuqlkj gh iz'uksa dks gy dhft,A

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fr-11

forest mensuration and biostatistics

ou {ks=kfefr ,oa lkaf[;dh

Bachelor of Science (BSC.-12/16/17) Third Year, Examination, 2020

Time Allowed : 2 Hours Maximum Marks : 40 note: This paper is of Forty (40) marks divided

into Two (02) sections A and B. Attempt the question contained in these sections according to the detailed instructions given therein.

uksV% ;g iz'u i=k pkyhl (40) vadksa dk gSA tks nks (02) [k.Mksa d rFkk [k esa foHkkftr gSA izR;sd [k.M esa fn, x, foLr`r funsZ'kksa ds vuqlkj gh iz'uksa dks gy dhft,A

section-a/

[k.M&^d*

(Long Answer Type Questions/

nh?kZ mÙkjh; iz'u)

Note: Section-'A' contains Five (05) Long answer type questions of Ten (10) marks each.

Learners are required to answer any two (02)

questions only. (2×10=20)

(2)

uksV % [k.M&^d* esa ik¡p (05) nh?kZ mÙkjh; iz'u fn, x, gSa] izR;sd iz'u ds fy, nl (10) vad fu/kZfjr gSaA f'k{kkfFkZ;ksa dks buesa ls dsoy nks (02) iz'uksa ds mÙkj nsus gSaA

1. What is stand biomass? Describe the important factors that affect the weight of wood and bark.

[kM+h iQly tSoHkkj D;k gS\ dk"B ,oa Nky ds Hkkj dks izHkkfor djus okys eq[; dkjdksa dk o.kZu dhft,A

2. Enlist the instruments used for height measurement of trees. Describe in detail about instruments used for height measurements in trees.

o`{kksa dh Å¡pkbZ dh x.kuk djus okys ;U=kksa ds uke fyf[k,A o`{kksa dh Å¡pkbZ ekius esa iz;qDr ;U=kksa ds ckjs esa foLr`r foospuk dhft,A

3. Discuss the methods for determination of volume of standing trees.

[kM+s o`{kksa ds vk;ru ekius dh fof/;ksa dh foospuk

dhft,A

(3)

4. What information are provided by volume tables? Write a description of classification of volume tables on different basis.

vk;ru lkjf.k;k¡ D;k lwpuk,a iznku djrh gSa\ fofHkUu vk/kj ij vk;ru lkjf.k;ksa ds oxhZdj.k dk o.kZu dhft,A

5. What do you mean by the term tree form? Describe various methods used to study tree form.

o`{k ds :i ls vki D;k le>rs gSa\ o`{kksa ds ruk :i Kkr djus dh fofHkUu fof/;ksa dk o.kZu dhft,A

section-b/

[k.M&[k

(Short answer type questions/

y?kq mÙkjh; iz'u)

Note: Section-B Contains Eight (08) Short answer type questions of Five (05) marks each. Learners are required to answer any four (04) questions

only. (4×5=20)

(4)

uksV% [k.M&^[k* esa vkB (08) y?kq mÙkjh; iz'u fn, x, gSa] izR;sd iz'u ds fy, ik¡p (05) vad fu/kZfjr gSaA f'k{kkfFkZ;ksa dks buesa ls dsoy pkj (04) iz'uksa ds mÙkj nsus gSaA

1. The heights of trees were 8, 10, 12, 14, 13, 12, 18, 19, 13, 16 and 13 meters. Calculate the mean, mode and median from the given data.

o`{kksa dh Å¡pkbZ

8, 10, 12, 14, 13, 12, 18, 19, 13, 16

,oa

13

ehVj FkhA fn;s x;s vk¡dM+ksa ls ekè;] cgqyd vkSj ekfè;dk dh x.kuk dhft,A

2. Differentiate between the following with examples :

fuEufyf[kr esa mnkgj.k lfgr vUrj dhft, %

(i) Geometric principle and trigonometric Principles

T;kferh; fl¼kUr ,oa f=kdks.kferks; fl¼kUr

(ii) Random sampling and non-random sampling

;kn`fPNd izfrp;u ,oa xSj ;kn`fPNd izfrp;u

(5)

3. Differentiate between the following with examples :

fuEufyf[kr esa mnkgj.k lfgr vUrj dhft, %

(i) Form factor and form quotient

vkdkj dkjd ,oa vkdkj yfC/

(ii) Standard volume table and commercial volume table

LVSaMMZ vk;ru lkj.kh ,oa O;kikfjd vk;ru lkj.kh

4. Describe the methods of age determination of standing trees.

[kM+s o`{kksa dh vk;q x.kuk ds i¼fr dh foospuk dhft,A

5. Define the probability. What is the probability that a leap year selected at random will have 53 Sundays?

izkf;drk dks ifjHkkf"kr dhft,A fu:ís'; vf/o"kZ p;fur

djus ij frjiu jfookj gksus dh D;k izkf;drk gS\

(6)

6. Write short notes of the following :

fuEufyf[kr ij laf{kIr fVIif.k;k¡ fyf[k, %

(i) 'Pressler's formula' for volume increment percent.

vk;ru o`f¼ izfr'krrk ds fy, ^izs'kyj iQkWewZyk*

(ii) Tree height is considered as an index of site quality. Why?

o`{k Å¡pkbZ Hkwfe dh xq.koRrk dk fpUg ekuk tkrk gSA D;ksa\

7. Discuss the factors affecting weight of wood and Bark.

dk"B ,oa Nky dks izHkkfor djus okys dkjdksa dk o.kZu dhft,A

8. Discuss the measurement of Bark thickness in brief.

o`{k Nky dh eksVkbZ ekiu dks la{ksi esa le>kb,A

******

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