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TRANSCRIPT
Presented By S.Thanusha Reddy
Natural Vegetation and Wild LifeNatural Vegetation and Animal
Wild Life depend on climate, relief & soil.
The diversity of India’s climate & relief have
made natural vegetation & Animal Wild Lifeinterdependent on each other &
the form of single ecosystem. This ecosystem
has evolved through thousands of years.
Indiscriminate meddling with this ecosystem
causes harmful effects. Natural
vegetation & Animal Wild Life are also called
flora&fauna respectively.
Natural Vegetation
Contents(part-1)• What is Natural
Vegetation?• Tropical Evergreen
Forests• Tropical Deciduous
Forests(Monsoon Forests)• Tropical Thorn and Shrub
Forests• Desert Vegetation• Mangrove Forests• Himalayan or Alpine
Vegetation• Importance of Forests• Conservation of forests
What Is Natural Vegetation?India has a wide variety of Natural
Vegetation ranging from Tropical Evergreen Forests
to Desert Vegetation. The Natural
Vegetation of India can be divided into six main type.
They are:-1. Tropical Evergreen Forests2. Tropical Deciduous Forests(Monsoon
Forests)3. Tropical Thorn and Shrub Forests4. Desert Vegetation5. Mangrove Forests6. Himalayan Vegetation
Tropical Evergreen ForestsThis type of vegetation is found in
areas where rainfall is above 250cms and temperature ranges
between 250oC and 270oC. Since the trees are always green they are
called Rain Forests. The heavy rainfall, high temperature
and humidity are responsible for the growth of these dense forests.
The trees grow about 60 meters high. The branches of trees form a
canopy and prevent the sun’s rays from reaching the ground. In
India, most of these forests are found on the western side of the
Western Ghats, in the North-Eastern hills and the Andaman and
Nicobar islands. The Semi Evergreen Forests are found in the
lower rainfall areas of the Western Ghats, Orissa and West
Bengal. Ebony, Mahogany, rose-wood and rubber are the Important
trees. Bamboo bushes are also found in this regions.
Tropical Deciduous Forests(Monsoon Forests)
These forests are also called Monsoon Forests. They
cover a greater part of India. They are found in regions
where the rainfall is between 75cms, and 250cms. These
forests are found on the eastern slopes of the Western
Ghats, Jammu, West Bengal, Chhattisgarh, Orissa,
Bihar and Jharkhand. In these forests, the trees are
fewer and shorter. Bamboos and Canes are also grown
here. The trees shed their leaves at the beginning of
Summer. The important trees of these forests are Teak,
Sal and Sandal-Wood. They have great commercial
value. The Deciduous Forests of Karnataka have
Sandal-Wood trees. Wherever these forests are cut
down or burnt, bushes and grass have taken their place.
Tropical Thorn and Shrub ForestsThese forests are found in the central parts of the Deccan Plateau, southern parts of the Maharashtra, Bellary of Karnataka, Cuddapha & Kurnool of Andhra Pradesh, where the annual rainfall is between 60 &75cms.These forests have short stemmed trees like Babul and Kasavi trees & Coarse grass. Palms & Kikar trees are also found here.
Desert VegetationThis type of vegetation is found in regions where the annual
rainfall is less than 50cms.
Rajasthan’s Thar Desert, the borders of Punjab, Haryana and Gujarat have this
typevegetation. The trees, which
grow here have deep roots, thick leaves
and thorns. Date Palms are
common near Oasis. Babul, Palms, Wild Dates
and Cactus are the important trees.
Babul tree yields gum and its bark
yields tanning material.
Mangrove ForestsThese forests are formed due to tides. They
are formed along the Deltas and estuaries of
rivers that are subjected to tides. Pendent
roots(like those of Banyan tree) are the
characteristics of Mangrove Forests. The Deltas of rivers
Ganges, Godavari, Mahanadi and Krishna have
these forests. In the Ganges delta, there are
plenty of Sundari trees and the forests are known as ‘SUNDERBANS’. These trees are used for making furniture and boats. These forests
also yield firewood and tanning material. Canes, Palms and “Kendale” trees are also found
here.
Himalayan or Alpine VegetationDifferent types of vegetation are found in
the Himalayan Mountains. The vegetation changes with
altitude & rainfall. The lower regions of the Himalayas have
Tropical Evergreen Forests up to 1,500mts. Teak, Sal & Rose-
Wood are the important trees. Temperate forests are
found between 1,500 to 3,650mts. They are also called Coniferous
Forests. The important trees of this vegetation are Silver
Fir, Oak, Spruce, Laurels, Chestnut etc. Grasslands are found
in altitude between 3,650 to 4,875mts. Rhododendron, Willow,
Juniper & Primrose trees are found here. Flowering
plants are found in Alpine Meadows. During Summer, at still
higher altitudeLichen &Moss are found. Above 6,000mts,
the region is covered with snow & hence no vegetation is found.
Importance of ForestsForests are a very important Natural Resource. They
provide raw materials to industries such as Timber, Bamboo, Cane,
Gum, Medicinal Plants, Shrubs, etc. They provide fodder to cattle. In
addition to these benefits, there are advantages which are of great
importance. They are as follows:-1. Forests provide moisture and lower the temperature.2. They prevent soil erosion and preserve the fertility of
the soil.3. Forests provide home for many animals and birds, thus
preserving bio-diversity. 4. Forests help to preserve the ecological balance.
Forests are depleted due to large-scale cutting of trees due to
industrial development, Cultivation of crops, over-grazing by
cattle, construction of railways and roadways, irrigation and
power projects. This depletion of forests has resulted in floods
$ soil erosion. Due to increase in population, demand for forest
products has increased. So there is great need to protect forests. By
planting more and more trees, we have to conserve forests.
Conservation of forestsForests are a natural gift to
humankind. Human beings first lived in
forests. Destruction of forests result in Soil Erosion, Floods, Drought,
etc. Hence, realizing the importance of forests, the Central
Government has formed a National Forest Policy in 1952. It has a
three fold plan namely: 1.Nationalism of Forest Operations.2.Protection and Operation of Wildlife
and Environment &Social Forestry.3.Commercialization of Industrial
Forest Operation. Social Forestry aims at not only
providing enough firewood, fodder & other forest products but also to
meet the requirements of ecological balance through large scale
aforestation in community land and wasteland. “Vanamohatsava” which
was started in 1950, aims at planting thousands of seedlings
during July and August. Thus it helps to preserve ecological balance.
Wildlife
Contents(Part-2)• What is Wildlife?• Where it can be
found?• Influence of various
factors on wildlife.• Wild Life maintaining
the balance in the Ecosystem
• Species included in wild life.
• Bird life of India• Evil Human• Measures to protect
Wild Life• Conservation of Wild
Life
What is Wildlife?Wildlife traditionally
refers to non-Domesticated animal
species, but has come to include all plants, fungi and
other organisms which grow or live wild in an area without
being introduced by humans. Domesticating wild plant &
animal species for human benefit has occurred many times
all over the planet, and has a major impact on the
environment, both positive and negative.
Where it can be found?Wildlife can be found in all Ecosystems. Deserts,
forests, rainforests, plains, grasslands,
other areas including the most
developedurban sites, all have distinct
forms of wildlife. While the term in popular culture usually
refers to animals that are untouched
by human factors, most
scientists agree that wildlife around is
affected by human activities.
Influence of various factors on wildlife.Humans have historically tended to
separate civilization from wildlife in a number
of ways including the legal, social, & moral
sense. Some animals, however, have adapted to
suburban environments. This includes such
animals as domesticated cats, dogs, mice, &
gerbils. Religions have often declared certain animals to
be sacred, & in modern times concern for
the natural environment has provoked
activists to protest the exploitation of wildlife for
human benefit or entertainment.
Wild Life maintaining the balance in the Ecosystem
Wild Life includes animals, birds, insects as well
as the aquatic life forms. They provide us milk, meat,
hides & wool. Insects like bees provide us honey, help
in pollination, of flowers & have an important role to
play as decomposers in the ecosystem. The birds fed on
Insects & act as decomposers as well. Vulture due to
its ability to feed on dead livestock is a scavenger &
considered a vital cleanser of the environment. So
animals big or small, all integral to maintaining
balance in the ecosystem.
Species included in wild life.India has a variety of wildlife because of its varied relief features such as climate & natural vegetation. There are about 80,000 species of wild animals, birds & fishes. India has some rare animals which are not found in any other part of the world. Eg:- Swamp Deer, Chausinga(four-horn antelope),Kashmir stag, Black Buck & Neelgai. The stopped deer of India is very beautiful. Horned Rhinoceros is found only in India and Nepal. Some of the Carnivores animals such as lions, tigers and leopards are found in our forests. The Gir Forests of Saurashtra is the natural habitat of Lions. The famous Bengal Tiger is found in theSunderbans. The national animal of India is the Tiger. The Himalayas are the home of several interesting animals like the Wild Sheep, Yak, the Mountain Goats, the Ibex, the Shrew, the Tapu, the Panda & the Snow-Leopard. Of the many species of monkeys, the languar is the most common.
BirdlifeIndia has a variety
of Bird Life. TheFalcon(hawk),
Geese, Mynahs, Parrots,
Pigeons, Cranes, Hornbills, Sunbirds &
Kingfishers are found in forests & marshy
lands. The Peacock is our national bird.
Birds are very beautiful to see and various
bird sanctuaries are full crowded with
tourists and these bird sanctuaries help India
in foreign exchange.
Evil HumanForests are our wealth. Plants give shelter to
the animals & together theymaintain the ecosystem. Changes of climate
& human interferences can cause the loss of natural habitats for the plants &
animals. Many species have become vulnerable or endangered & some
are on the verge of extinction. Deforestation, Soil Erosion, Constructional
Activities, Forest Fires, Tsunami & Landslides are some of the human & natural
factors which accelerate the process of extinction of these resources. One
of the major concerns is the poaching which result in a sharp decline in
the number of particular species. The animals are poached for collection &
illegal trade of hides, skins, nails, teeth, horns as well as feathers. Some of
these animals are Tigers, Loin, Elephant, Deer, Black Buck, Crocodile,
Rhinoceros, Snow Leopard, Ostrich & Peacock. These can be conserved by
increasing awareness. Humans are adversely using Wild Life & its uses. So, we
have to protect our Animal Life &Bird Life. That means there is a need
protect our Wide Wild Life.
Measures to protect Wild LifeSpecial efforts are
made to protect the endangered
species of Wild Life. National Parks and
Wildlife Sanctuaries have been
opened in order to preserve
Wildlife. There are 73 National Parks, 447
Wild Life Sanctuaries and 17
Tiger Reserves. The Bandipur,
Nagarahole and Bannerghatta national
Parks are in Karnataka. The areas
have becomeplaces of tourist-
interest.
Conservation of Wild LifeNational Parks, Wildlife Sanctuaries, Biosphere
Reserves are made to protect our Natural Vegetation and Wild Life.
Conservation of Creeks, Lakes, and Wetlands is necessary to save the
precious resource from depletion. There is a balance in the environment
if the relative number of species is not disturbed. Human Activities in
several parts of the world have disturbed the natural habitats of
many species. Due to indiscriminate killings, several birds and
animals have either become extinct or are on the verge of
extinction. Awareness Programmes like Social Forestry & Vanamohatasava
should be encouraged at the regional and community level.
School children should be encouraged to bird watch and visit nature
camps so that they appreciate the habitat of varied species. Many
countries have passed laws against the trade as well as killing of birds
and animals. In India, killing Lions, Tigers, Dears, Great Indian
Bustards &Peacocks is illegal. An International Convention CITES*
has been established that lists several species of animals and
birds in which trade is prohibited. Conservation of Plants and Animals
is an ethical duty of every citizen.