Forests cover 30% of the Earth's surface and provide important ecological and economic resources. They are classified as renewable or non-renewable. Tropical rainforests are located in central and South America, Africa, and Southeast Asia and contain the greatest biodiversity. Temperate and boreal forests are found in Europe, Asia, and North America. India has 20% forest cover, hosting tropical moist deciduous and tropical dry deciduous forests. Forests are threatened by deforestation but are managed through afforestation, joint forest management, and social forestry programs to balance use with conservation.
1. “What we are doing to the forests of the world is but a mirror reflection of what we are doing to ourselves and to one another.” ― MAHATMA GANDHI ―
2. “Earth provides enough to satisfy every man's needs, but not every man's greed.” ― Mahatma Gandhi
3. The term “resource” means any thing that we use from our environment to achieve our objective. For example, we require bricks, cement, iron, wood etc. to construct a building. All these items are called the resources for construction of building. A resource can be defined as „any natural or artificial substance, energy or organism, which is used by human being for its welfare. These resources are of two types: Natural Resources Artificial Resources
4. “Nature is not a place to visit. It is home.” ― Gary Snyder
5. CONSERVATION OF NATURAL RESOURCES As the human population is continuously growing the consumption of natural resources is also increasing. With the increasing industrialization and urbanization of the modern human society, the use of all the resources is rising. If they are not properly used and well managed, a serious scarcity will result. Therefore we need to conserve the natural resources. This will also upset the ecological balance. Conservation is the proper management of a natural resource to prevent its exploitation, destruction or degradation. Conservation is the sum total of activities, which can derive benefits from natural resources but at the same time prevent excessive use leading to destruction or degradation.
6. Need for Conservation of Natural Resources We know that nature provides us all our basic needs but we tend to overexploit it. If we go on exploiting the nature, there will be no more resources available in future. There is an urgent need to conserve the nature. Some of the needs are : to maintain ecological balance for supporting life. to preserve different kinds of species (biodiversity). to make the resources available for present and future generation. to ensure the survival of human race.
7. Conservation of Natural Resources and Traditions of India The need for conservation of natural resources was felt by our predecessors and in India, there was a tradition of respecting and preserving the nature and natural resources. Natural resources were conserved in the form of sacred groves/forests, sacred pools and lakes, sacred species etc. In our country the conservation of natural forests is known from the time of Lord Asoka. Sacred forests are forest patches of different dimensions dedicated by the tribal to their deities and ancestral spirits. Cutting down trees, hunting and other human interferences were strictly prohibited in these forests.
8. This practice is wide spread particularly in peninsular, central and eastern India and has resulted in the protection of a large number of plants and animals. Similarly, several water bodies, e.g., Khecheopalri lake in Sikkim was declared sacred by people, thus, protecting aquati
1. “What we are doing to the forests of the world is but a mirror reflection of what we are doing to ourselves and to one another.” ― MAHATMA GANDHI ―
2. “Earth provides enough to satisfy every man's needs, but not every man's greed.” ― Mahatma Gandhi
3. The term “resource” means any thing that we use from our environment to achieve our objective. For example, we require bricks, cement, iron, wood etc. to construct a building. All these items are called the resources for construction of building. A resource can be defined as „any natural or artificial substance, energy or organism, which is used by human being for its welfare. These resources are of two types: Natural Resources Artificial Resources
4. “Nature is not a place to visit. It is home.” ― Gary Snyder
5. CONSERVATION OF NATURAL RESOURCES As the human population is continuously growing the consumption of natural resources is also increasing. With the increasing industrialization and urbanization of the modern human society, the use of all the resources is rising. If they are not properly used and well managed, a serious scarcity will result. Therefore we need to conserve the natural resources. This will also upset the ecological balance. Conservation is the proper management of a natural resource to prevent its exploitation, destruction or degradation. Conservation is the sum total of activities, which can derive benefits from natural resources but at the same time prevent excessive use leading to destruction or degradation.
6. Need for Conservation of Natural Resources We know that nature provides us all our basic needs but we tend to overexploit it. If we go on exploiting the nature, there will be no more resources available in future. There is an urgent need to conserve the nature. Some of the needs are : to maintain ecological balance for supporting life. to preserve different kinds of species (biodiversity). to make the resources available for present and future generation. to ensure the survival of human race.
7. Conservation of Natural Resources and Traditions of India The need for conservation of natural resources was felt by our predecessors and in India, there was a tradition of respecting and preserving the nature and natural resources. Natural resources were conserved in the form of sacred groves/forests, sacred pools and lakes, sacred species etc. In our country the conservation of natural forests is known from the time of Lord Asoka. Sacred forests are forest patches of different dimensions dedicated by the tribal to their deities and ancestral spirits. Cutting down trees, hunting and other human interferences were strictly prohibited in these forests.
8. This practice is wide spread particularly in peninsular, central and eastern India and has resulted in the protection of a large number of plants and animals. Similarly, several water bodies, e.g., Khecheopalri lake in Sikkim was declared sacred by people, thus, protecting aquati
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2. BACKGROUND TO NATURAL RESOURCES
A Natural resource is a thing, people can use which comes from
Nature: people do not make it themselves.
Examples of natural resources are air, water, wood, oil, solar
energy, wind energy, hydro-electric energy, coal ,water,
minerals.
Two sorts of natural resource:
› Renewable resources
› Non-renewable resources.
A renewable resource grows again or comes back again after
we use it. For example, forest, sun, water, trees, fish.
A non-renewable resource is a resource that does not grow or
come back, or a resource that would take a very long time to
come back or grow. For example, coal is a non-renewable
resource.
3.
Forest - a living, complexly interrelated community of trees
and associated plants and animals
Forest canopy - a barrier to direct sunlight and shades the
forest floor, influencing the air temperature, soil temperature
and soil moisture
Pulpwood - wood cut or prepared for manufacture into pulp,
which can be made into paper products
Reserved forest land - forest land restricted from harvesting
Timberland - forest land capable of producing wood in
excess of 20 cubic feet per acre per year and not restricted
from being harvested
Total forest land - the sum of timberland, reserved forest land,
and other forest land
Urban forestry - the cultivation and management of trees for
its benefit to society
4. Forest Resources
Forests cover about 30% of the Earth’s surface.
Most of the world’s remaining forest are tropical rain
forest.
Temperate forests cover a much smaller area because
most have been cleared to make way for homes,
agriculture, etc.
The management of forests is called forestry.
The overall goal of forestry is to balance our need
for forests as an economic resources vs. our need for
them as an ecological resource.
5. The total forest area of the world amounts to 3.6
billion hectares, down from 6 billion hectares 8000
years ago.
56 countries have lost between 90 and 100% of
their forests.
15 million hectares of forest were lost annually in
the last two decades, largely in the tropics.
12.5% of plants and 75% of animal species are
threatened by decline of forests
In the developing countries alone, some US$ 45
billion is lost through poor forest management.
About 14 million hectares of forestland are lost
annually, due to conversion of forests into
cropland.
6. Tropical rainforestsHot & humid region
Annual rainfall- 2000 to
4500 mm.
Found in south and
central America,
Western & Central
Africa, South East Asia,
and some islands of
Indian & Pacific
Oceans.
Tropical forests are
considered important
because it helps in
recycling water.
7.
Cold in winter and
warm & humid in
summer.
Annual rainfall is 7502000 mm
Soil is rich
Found in western
and Central Europe,
eastern Asia and
eastern North
America.
8.
Many coniferous
trees are found in this
region like spruce, fir,
pine etc.
Found in northern
parts of Northern
America, Europe
and Asia.
The soil in these
forests is acidic and
humus-rich.
9.
As per report of Forest survey of India,
Dehradun the forest cover in the country is
678,333 sq.km & constitutes 20.63% of its
geographical area.
Dense forest contributes 390,564sq.km(11.88%)
& open forest 287,769(8.75%).
In India M.P with 76429 sq.km of forest cover
has the maximum forest among all States/UT’s
followed by AP & Chandigarh.
10.
80% of Indian forest
is of three types.
Forest
type
Area in
India
Place
Tropical
moist deci.
37%
MP,GUJRA
T,MAHA.
TROPICAL
DRY DECI.
28%
HIMALAYA
TO
KANYAKU
MARI
SUBTROPI
CAL PINE
7%
HIMALAYA
S
INDIAN FOREST SURVEY
13. Area – 53483 sq.km
Forest area – 34662 sq.km
› 64.8%
› 4.5% of India’s forests
Forest Cover – 23938 sq.km
› 44.8%
› Dense – 19023 sq.km
› Open -- 4915 sq.km
14.
15.
Threat Category (IUCN )
Extinct
Extinct/Endangered
Endangered
Endangered/Vulnerable
Vulnerable
Rare
Indeterminate
Insufficiently Known
No information
Not threatened
TOTAL
Number of species
19
43
149
2
108
256
719
9
1441
374
3120
16.
17.
For the next 5 years following seven plants require
concentrated attention:
Aloe vera (Ghrita Kumari)
Bacopa monnieri (Brahmi)
Centella asiatica (Mandookparni, Gotu Kola)
Rauwolfia serpentina (Sarpagandha)
Catharanthus roseus (Periwinkle)
Taxus baccata / Taxus wallichiana (Himalayan
Yew)
Artemisia annua
18. Trees provide food, medicines, fuel, shelter,
protection, shade, tools and other needs.
Wood is the raw material from which forest
industries manufacture countless products
for home, factory and office.
The social values of forests are the benefits
they provide for outdoor recreation
activities such as: hunting, fishing, bird
watching, nature study, camping,
picnicking, hiking and scenic or aesthetic
value.
19.
Forests influence temperature, humidity, and wind
velocity.
The leaves and branches of trees break the impact of rain
causing it to drip rather than to reach the earth with force.
Upon reaching the forest floor, rain is absorbed by the
ground litter and humus, reducing surface runoff
The litter and humus keep the soil mellow, porous and
permeable
The forest soil tends to not freeze as deep
Forest vegetation shades water courses
Aid in flood control
Wildlife obtain food and shelter
Forests help to reduce wind erosion
20.
21.
Forest resources have economic value when they yield
an income
Timber, grazing, recreation, water, minerals, fish, and
wildlife are all examples of income-producing values of
forests
Greatest economic contribution of forests is the products
derived from trees
Trees from forests are made into lumber, pulpwood,
veneer, poles, railroad ties, and piling.
The same income producing resources have certain social
values that may not be income producing but still have
worth in terms of public good or interest
Social values are generally values related to aesthetic
considerations, such as scenic qualities of a forest area.
Other social values are concerned with biological
aspects, such as the uniqueness of the plants and animals
found in the forest.
22.
23.
INDUSTRIAL WOOD AND FUELWOOD
NON-WOOD PRODUCTS
ECOSYSTEM SERVICES
OTHER CONTRIBUTIONS
25.
Urban forestry also considers the present and
potential contribution of the trees to the
physiological, sociological, and economic well-being
of an urban society
Trees are established along streets and avenues
These benefits include economic, environmental,
wildlife, and aesthetic and social values
Major benefit of trees is their shade (reduce energy
consumed for air conditioning)
Deciduous trees lose their leaves in the autumn,
which allows more sunlight in the winter
Urban trees may also function as windbreaks
26.
Because trees shade the ground, soil temperature is cooler
during the summer, resulting in a better retention of soil
moisture
Urban forests provide watershed protection
Urban trees and forests produce oxygen and utilize
carbon dioxide
Maintaining a diversity of trees, shrubs, and understory
plants stimulates a diversity of wildlife species
The beauty of trees and shrubs softens the rigid lines of
man-made structures and enhances pleasing
environments
The beauty of the season is another important aesthetic
value when establishing trees in the urban landscape
When properly considered, established and cared for,
trees can greatly improve living conditions in urban
environments
27.
28. CONDITION THAT PREVAILED BEFORE:
One of the finest tropical evergreen
forests
Rich biodiversity
Low population, tribals living in harmony
with nature.
29.
Forest degradation due to legal and
illegal logging.
Degradation of soil, soil erosion.
Heavy flow of sediments into coastal
waters killing substantial amount of corals.
Threat to the biodiversity (saltwater
crocodile and Andaman wild pig have
become endangered species).
Threat to tribes.
Population pressure is high.
30. Extraction of timber : from 1883.
Govt. supported migration of people
from other parts of the country.
The 340-km long Andanman trunk road.
Increased interference of man.
32. Deforestation
Forest are exploited since early times for
humans to meet human demand
The permanent destruction of forest is
called deforestation
33. Erosion of topsoil
Floods
Extinction of plants and animals
Local climatic change
Global warming
Loss of livelihood of local communities
34. Foresters and local people are working
together to conserve forests.
Extractive Reserves-Protected forest in
which local people are allowed to harvest
products like fruits, fibre , medicine etc.
Main objective is to improve the life of the
people while conserving biodiversity.
35. Afforestation
The conservation measure against the
deforestation is afforestation. The development
of forest by planting trees on waste land is called
afforestation
The main objective of afforestation
• To control the deforestation
• To prevent soil erosion
• To regulate rainfall and maintain temperature
etc.
36.
Joint Forest Management
Concept introduced in 1980’s.
In JFM local communities are involved in
planinng the conservation programme.
`
`eg.-The Tamilnadu Afforestation Project(TAP)
SOCIAL FORESTRY
Used in India in 1976.
Plantation of eucalyptus tree
37. Paper made from natural fibres and
agricultural residues.
China plans to make 60 % of its paper
from tree free pulp.
In India Navneet publications use eco
friendly papers to make copybooks.
38. CHIPKO MOVEMENT –Gaura Devi
The Green Belt Movement— Wangari
Maathai
Struggle in Amazonia—Chico Mendes
Red wood trees California—Julia Butterfly
39. Stop destructions of forest
Use of sustainaible forest management
approach
Research and training programme.
Proper planning for the whole landscape
and not the forest in isolation