Chapter - Natural Vegetation (Pary-1) Class - X Session - 2020-2021 Day - 1
Chapter - Natural Vegetation (Pary-1) Class - X Session - 2020-2021 Day - 1
Chapter - Natural Vegetation (Pary-1) Class - X Session - 2020-2021 Day - 1
Day –1
Mind MAPPING:
➢ Meaning of natural vegetation
➢ Factors affecting Natural Vegetation
➢ Importance of forests
➢ Types of forests/ natural vegetation—characteristic features,
distribution and correlation with their environment.
➢ Factors affecting Natural Vegetation: Each vegetation has its own cycle,
which is a result of the delicate balance between it and its environment.
1. Climate It includes temperature and
rainfall. Rainfall is more important
than temperature except in the
Himalayas.
Areas of heavy rainfall have more
dense vegetation as compared to
the areas with less rainfall.
The Fall in Temperature Affects
the type of vegetation and its
1
growth. The vegetation cover
changes from Tropical to Sub-
Tropical, Temperate and Alpine.
Exposure to more sunlight
initiates faster and denser growth
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10.Recharges ground water
11.Reduces surface runoff, thus prevents soil erosion
12.Provides employment to thousands of people
13.Source of income to the Govt.
14.Provides raw material to many industries.
15.Provides products like bee wax, materials for dyeing and tanning,
oil and lac .
16.Helps in conserving water in the subsoil.
17.Helps in conserving top layer of the soil.
18.Helps in maintaining ecological balance.
19.Purifies the air, take in carbon dioxide and provide the
surrounding with oxygen.
20.Helps to absorb much of the sun’s insolation and also cause rain.
3
➢ Types of Forests in India:
(a) Forests based on variation of • Tropical evergreen forests
rainfall • Tropical Deciduous monsoon
forests
• Tropical desert and semi-
desert vegetation
• Thorn and scrub forests.
(b) Forests based on variation of • Mountain or Mixed Forests
relief • Tropical Mangrove or Tidal
or Littoral Forests.
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GEOGRAPHY
Day – 2
5
Important Plant Species: Mahogany, Rosewood, Cinchona, Ironwood, Ebony,
Gurjan, Toon, Bamboo
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Dark Forest
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GEOGRAPHY
Day–3
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Not so dense like Evergreen forest, easily accessible. Sunlight can penetrate.
Easy transportation available.
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GEOGRAPHY
DAY-4
Desert Landscape
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➢ Important Species--- Babul, Date Palm, Khair, Ber, Khajuri
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GEOGRAPHY
Day-5
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in the shifting mud of coastal
region.
• These forests are very dense.
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Mangrove Trees on STILT ROOTS—help to balance the tree in shifting mud.
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SUNDARI TREES at SUNDERBAN
Refer to Pg No.100, Frank (part-II) for the Beach forest and freshwater swamp
forest.
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GEOGRAPHY
Day-6
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➢ Important species found – Pines, Spruce, Cedar, Oaks, Laurel, Bamboo,
Poplar, Birch, Walnuts, Elm, Cinchona, Eucalyptus.
Pines and Eucalyptus are found in the Nilgiris.
Species Uses
Chirpine • Used for extraction of resin
and turpentine.
• Provides soft wood which is
used for making packing
cases for tea.
• Mostly found in Punjab, Up,
Kashmir.
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Deodar • Wood is oily, durable,
scented.
• Used for railway sleepers and
house construction.
• Mostly found in Himachal
Pradesh and Kashmir.
RECAPITULATION:
(a) Name the Natural Vegetation found on the Eastern Slopes of Western
Ghats. Give two Characteristics of the same.
(b) How are forests important to us?( Give any two points)
(c) Name two states and two important species for each of the following
natural vegetation ----
Tropical Deciduous, Littoral, Mountain, Tropical Evergreen, Tropical
Desert.
(d) Give one word answer:
• It is used for making perfumes.
• It is used for making shipbuilding.
• Its fruit is used for tanning leather, dyeing fabric.
(e) What characteristics of Sundari tree make it suitable for boat building?
ACTIVITY: Make a list of all the forest products you use at home.
https://youtu.be/kiHNr0dOj9E
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