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Geography > Natural vegetation > Flashcards

Natural vegetation Flashcards

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1
Q

What is natural vegetation?

A

plant cover that has not been disturbed over a long time and has grown without human interference

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2
Q

What is flora?

A

Plants of a particular region or period, listed as species and considered as a group

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3
Q

What is vegetation ?

A

assemblage of plant species living in association with each other

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4
Q

4 major types of vegetation

A

tundra, grasslands, scrubs, forests

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5
Q

What is forest

A

large tract of land covered with trees and accompanying undergrowth of shrubs,herbs

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6
Q

bamboo is used in manufacturing ______and bamboo pulp is used in manufacturing _______.

A

rayon, paper

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7
Q

natural sponge of the forest

A

Humus

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8
Q

functions of humus

A
  1. increases soil fertility

2. prevents evaporation of water

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9
Q

Tropical evergreen forests are also known as ________

A

tropical rainforests

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10
Q

Climatic conditions required for tropical rainforests

A

temp -> 25-27 celsius
rain- >250 cm
humidity- >77%

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11
Q

Distribution of tropical evergreen forest

A
  1. western slopes of Western Ghats
  2. hills of N-E
  3. Lakshadweep
  4. Andaman and Nicobar islands
  5. Tamil nadu coast
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12
Q

The trees of tropical evergreen forest reach heights or more than ___

A

60 m

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13
Q

Why does floor of tropical evergreen forest lack grass

A

Dense canopy of trees don’t allow sunlight to reach ground

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14
Q

the trees of tropical evergreen forest appear green all year round… why?

A

don’t have fixed time to shed their leaves

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15
Q

some trees which grow in tropical evergreen forest are:

A 
Rosewood
Ebony 
Mahogany 
Toon
Telsur
Sissoo
Gurjan
Chaplas
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16
Q

why is tropical evergreen forest not fully exploited?

A
  1. tangled mass of all kinds of trees .. no pure variety

2. lack of means of transport

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17
Q

Tropical deciduous forests are also known as _____

A

tropical monsoon forests

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18
Q

most commercially exploited forests of India

A

Tropical deciduous forests

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19
Q

most widespread forests in India

A

Tropical deciduous forests

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20
Q

two kinds of Tropical deciduous forests

A

moist and dry

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21
Q

Climatic conditions of moist deciduous forests

A

temp - 24 to 27 celsius
rain- 100 to 200 cm
humidity - 50 to 80%

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22
Q

distribution of moist deciduous forests

A
  1. foothills of Himalayas
  2. Eastern slopes of western Ghats
  3. N-E peninsula
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23
Q

commonly found trees of moist deciduous forests

A 
Mulberry
arjun
sal
mahua 
teak
sandalwood 
palas
shisham
semul
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24
Q

pure variety of trees can be found in

A

deciduous forests

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25
Q

when do moist deciduous forests shed their leaves ?

A

6 to 8 weeks during spring and early summer when there is acute water shortage

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26
Q

climatic conditions of dry deciduous forests

A

temp—-> 23 to 27 celsius
rain——> 70 to 100 cm
humidity-> 51 to 58%

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27
Q

Dry deciduous forests thrive between _____________ in the east and ___________ in the west

A

moist deciduous forest, tropical thorn forest

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28
Q

distribution of dry deciduous forests

A

plains of Bihar and UP

29
Q

during dry season.. how does dry deciduous forests look and why

A

they give a naked look of trees as they shed their leaves completely during dry season

30
Q

common trees found in dry deciduous forests are:

A 
bel
khair
axlewood
amaltas 
tendu
31
Q

tropical desert forests are also known as

A

tropical thorn forests

32
Q

climatic conditions of tropical desert forests

A

temp - 25 to 27 celsius
rain- < 50 cm
humidity < 47%

33
Q

distribution of tropical desert forests

A 
S-W Punjab
Haryana
Rajasthan
Uttar Pradesh
Gujarat
34
Q

tropical desert forests have _____ vegetation

A

xerophytic

35
Q

Due to paucity of rainfall, desert forest trees are _____ with large patches of _____ grass.

A

stunted, coarse

36
Q

How do trees in desert forests adapt without enough water?

A

They have long tap roots that can reach very deep underground water
They have thorns

37
Q

Acacia has a symbiotic relationship with ____

A

stinging ants

38
Q

in _____ forests , plants remain leafless for most of the year and look like_____ vegetation

A

tropical desert forests , scrub

39
Q

common trees found in tropical desert forests

A 
babool
acacia
cacti
ber
date palm
neem
40
Q

littoral forests are also called

A

tidal forests

41
Q

climatic conditions of littoral forests

A

temp - 26 to 29 celsius

rainfall - > 200 cm

42
Q

distribution of littoral forests

A

saline swamps of Sunderbans in WB

coasts areas of AP and Odisha

43
Q

littoral forests have mainly ____ species of varying density and height

A

evergreen

44
Q

littoral forests have breathing roots called ____

A

pneumatophores

45
Q

which forests have stilt like roots?

A

littoral forests

46
Q

what is an adaptation of littoral forests for surviving in soft and shifting mud?

A

profuse(abundant) growth with tangle of climbers

47
Q

common trees found in littoral forests are:

A 
Sundari 
agar 
screw pines 
canes and palms
amur
keora
rhizophora
48
Q

______ have been named after the tree Sundari

A

Sunderbans

49
Q

palas tree use

A

rears shellac worms

50
Q

rosewood tree use

A

decorative wood for carving , making furniture and floorboards

51
Q

Date palm is used an an _____ , as a _______

A

astringent, decoction

52
Q

ebony tree use

A

ornamental carving and for decoration, piano keys, musical instruments, sports goods

53
Q

teak tree use

A

construction purpose and shipbuilding, furniture. railway carriages

54
Q

sandalwood tree use

A

statues

oil

55
Q

sal

A

railway sleepers

beams

56
Q

sundari

A

Boat making

57
Q

Ber

A

pickle

58
Q

neem and babool

A

medicinal purpose

59
Q

climatic conditions of mountain forests

A

temp - 12 to 13 celsius
rain - 100 to 300 cm
humidity - 56-65%

60
Q

distribution of mountain forests

A

HImalayas
nilgiris
Western ghats
Vindhyas

61
Q

trees in mountain forests

A 
wattle
walnut
chestnut
oak
spruce
pine
deodar
jamun
birch
62
Q

social forestry

A

management and protection of forests and afforestation on barren lands with the purpose of helping in the environmental,social and rural development

63
Q

farm forestry

A

growing trees on farm land`

64
Q

reforestation

A

re establishing forest by planting trees in an area where forests have been removed

65
Q

social forestry is also called as

A

Van Mahotsava

66
Q

in thorn forests…. leaves are modified into ____ and the roots are very ____

A

spines, long

67
Q

Forest found in deltas

A

Littoral forests

68
Q

Tidal forests are also known as

A

Mangrove forests

Geography (4 decks)

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