Conservation of natural resources and environment

34

description

made for students who r in need..............if u like it send me greetings

Transcript of Conservation of natural resources and environment

Page 1: Conservation of natural resources and environment
Page 2: Conservation of natural resources and environment

TOTHE

POWER POINT PRESENTATION

Page 3: Conservation of natural resources and environment

Conservation of Natural Resources And Environment

Topic:-

Page 4: Conservation of natural resources and environment

The term “resource” means any thing that we use from our environment to achieveour objective. For example, we require bricks, cement, iron, wood etc. to constructa building. All these items are called the resources for construction of building. Aresource can be defined as ‘any natural or artificial substance, energy ororganism, which is used by human being for its welfare. These resources areof two types:

Page 5: Conservation of natural resources and environment

1.Natural resources

Page 6: Conservation of natural resources and environment

2.Artificial resources

Page 7: Conservation of natural resources and environment

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.

CONSERVATION OF NATURAL RESOURCES

Page 8: Conservation of natural resources and environment

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.

Need for Conservation of Natural Resources

Page 9: Conservation of natural resources and environment

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. 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 and. Similarly, several water bodies, e.g., Khecheopalri lake in Sikkim was declared sacred by people, thus, protecting aquatic flora and fauna. Worshipping certain plants like banyan, peepal, tulsi etc. has not only preserved them but also encouraged us for their plantation. History recalls numerous instances where people have laid down their lives in protecting the trees.Recent Chipko movement in India is one of the best examples. This movement wasstarted by the women in Gopeshwar village in Garhwal in the Himalayas. Theystopped the felling of trees by hugging them when the lumbermen arrived to cutthem. This saved about 12000 square kilometers of the sensitive water catchmentarea. Similar movements also occurred in some other parts of the country.

Conservation of Natural Resources and Traditions of India

Page 10: Conservation of natural resources and environment

As a Responsible CitizenWe have to conserve mainly

Soil

Water

Biodiversity

Forests

Page 11: Conservation of natural resources and environment

Some of the Methods to Conserve our basic Natural Resources

Page 12: Conservation of natural resources and environment

In the previous section we learnt about the various causes of soil erosion. Soil loses its fertility due to erosion. So we need to conserve the soil. Soil conservation means checking soil erosion and improving soil fertility by adopting various methods. Let us know some of these methods.1. Maintenance of soil fertility: The fertility can be maintained by adding manure and fertilizers regularly as well as by rotation of crop.2. Control on grazing: Grazing should be allowed only on the areas meant forit and not on agricultural land.3. Reforestation: Planting of trees and vegetation reduces soil erosion by both water and wind.4. Terracing: Dividing a slope into several flat fields to control rapid run of water. It is practiced mostly in hilly areas.5. Contour ploughing: Ploughing at right angles to the slope allows the furrows to trap water and check soil erosion by rain water.

Conservation of Soil

Page 13: Conservation of natural resources and environment

Conservation and management of water are essential for the survival of mankind, plants and animals. This can be achieved adopting the following methods:1. Growing vegetation in the catchment areas, which will hold water in the soil and allow it to percolate into deeper layers and contribute to formation of ground water.2. Constructing dams and reservoirs to regulate supply of water to the fields, as well as to enable generating hydroelectricity.3. Sewage should be treated and only the clear water should be released into the rivers.4. Industrial wastes (effluents) should be treated to prevent chemical and thermal pollution of fresh water.5. Judicious use of water in our day-to-day life.6. Rainwater harvesting should be done by storing rainwater and recharging groundwater.

Conservation of Water

Page 14: Conservation of natural resources and environment

Now you have an idea of the importance of biodiversity for our survival and how it is destroyed. Let us know how to protect the biodiversity. There are two basic strategies for conservation of biodiversity:(i) In-situ conservation(ii) Ex-situ conservation(i) In-situ (on site) conservation includes the protection of plants and animalswithin their natural habitats or in protected areas. Protected areas are areas of land or sea dedicated to protection and maintenance of biodiversity. For example: e.g., National Parks, Wildlife Sanctuaries, Biosphere Reserves, etc.(ii) Ex-situ (off site) conservation is the conservation of plants and animals outside their natural habitats. These include Botanical Gardens, Zoo, Gene Banks, DNA Banks, Seed Banks, Pollen Banks, Seedling and Tissue Culture etc.

Conservation of Biodiversity

Page 15: Conservation of natural resources and environment

Forests is an important part of the environment, because trees clean the air and keep the atmosphere cool. We cannot live without plants, because the oxygen need for breathing is produced by plants. Trees absorb sunlight and reduce the heat. Plants provide fodder for animals, firewood, timber, medicines, honey, wax, gum, lac and food for us. Tree roots penetrate deep into the soil and from cavities in the ground. The dry leaves which fall on ground, cover the soil and absorb more rain water, which slowly percolates through the soil. Thus, a large portion of the rain water can be retained in the field, by planting more trees. Flooding or rivers can be prevented by protecting trees in the forest.

Conservation of Forests

Page 16: Conservation of natural resources and environment

For the conservation of forests, following methods can be taken:(a) Conservation of forest is a national problem so it must be tackled with perfect coordination between forest department and other departments.(b) People's participation in the conservation of forests is of vital importance. So, we must get them involved in this national task.(c) The cutting of trees in the forests must be stopped at all costs.(d) Afforestation or special programmes like Van Mahotsava should be launched on grand scale.(e) Celebrations of all functions, festivals should precede with tree-plantation.(f) Cutting of timber and other forest produce should be restricted.(g) Grasslands should be regenerated.(h) Forest conservation Act 1980 should be strictly implemented to check deforestation.(i) Several centres of excellence have been setup and awards should be instituted.

Page 17: Conservation of natural resources and environment

Various acts and laws have been passed in Indian constitution for conservation ofnatural resources. Some of them are: Environment Protection Act, 1986 Forest (Conservation) Act, 1980 National Forest Policy, 1988 Wildlife Protection Act, 1972 and amended in 1991

LEGISLATION FOR CONSERVATION

By our Indian Constitution

Page 18: Conservation of natural resources and environment

Our Environment is our surrounding. This includes living and non-living things around us. The non-living components of environment are land, water and air. The living components are germs, plants, animals and people. All plants and animals adjust to the environment in which they are born and live. A charge in any component of the environment may cause discomfort and affect normal life. Any unfavorable change or degeneration in the environment is known as ‘Environmental Pollution. We need to protect our environment to live happily.

What is Environment?

Page 19: Conservation of natural resources and environment

How to Maintain a Good Environment? For better environment, all its components should be protected from pollution and the surroundings should be clean. We need to take good care of our land, water resources, forests and atmosphere . it is also necessary to ensure a balance between these resources and living creatures, to meet our needs.

Page 20: Conservation of natural resources and environment

Let us look at some of the pictures of pollution

Page 21: Conservation of natural resources and environment

Air Pollution

Page 22: Conservation of natural resources and environment

Air Pollution

Page 23: Conservation of natural resources and environment

Water Pollution

Page 24: Conservation of natural resources and environment

Water Pollution

Page 25: Conservation of natural resources and environment

Water Pollution

Page 26: Conservation of natural resources and environment

sound Pollution

Page 27: Conservation of natural resources and environment

Soil Degradation

Page 28: Conservation of natural resources and environment

Children’s Role

Page 29: Conservation of natural resources and environment

Children in rural and urban areas can play an important role in preventing environment pollution very effectively there is great satisfaction in doing it ourselves.

What Role can Children Play in Preventing Environment Pollution?

Page 30: Conservation of natural resources and environment

What Can Rural Children do? Children in village can persuade their parents to :

Use smokeless chulhas or install biogas plants; Provide smoke outlets and ventilation in the kitchen; Tie livestock outside the house and reduce their number Feed livestock in their sheds without letting them out for grazing; Plant trees around the house, on field bunds and along roadsides; Develop filed bunds across the slope the retain more water and

prevent the soil being washed away. Plough the field across the slope;

Keep tanks, canals and other water sources clean; Use the sewage water for growing trees; Keep the surroundings of the house and well clean; Prepare compost by using garbage, dung and other wastes; Select a suitable site for the toilet, away from water sources and

houses. It can also be connected to the biogas plant; Use agro-chemicals carefully and try to avoid them. Plant products

may be preferred wherever effective to protect crops; Protect wildlife like frogs, snakes, mongoose, birds, etc. which

Page 31: Conservation of natural resources and environment

What Can Urban Children do? Urban children can do a lot to reduce environment pollution. Plant tress in school and home premises. Even if you are staying in a flat, plants and creepers can be raises in pots and wooden boxes, in the balcony; Protect the trees planted along roadsides; Keep public areas clean and avoid littering; Plant trees along roadsides, near bus stops, around playgrounds, and in parks to provide shade; Avoid dumping garbage on the street. Dispose them in a garbage dump; you can also make a compost pit to convert garbage into manure; Waste paper, plastic, glass and metal pieces can be recycled this would reduce the pollution and conserve our resources; Avoid using plastic materials such as plates and carry bags which cannot be used again. Moreover, when plastic is thrown away, it does not degrade but remains in the soil, polluting the surroundings; Do not make noise in public places; every likes quiet surroundings; Request your family members to use automobiles only when necessary; walking or cycling can be a pleasure when the distance is short; If someone is causing pollution in your area, inform the authorities through your teachers or parents.

Page 32: Conservation of natural resources and environment

We can protect our environment in many ways. Let us act now and persuade others to join us. This will ensure safety for our future generations.

Page 33: Conservation of natural resources and environment
Page 34: Conservation of natural resources and environment

By:-D.Sai kumar

XI thClassJawahar Navodaya Vidyalaya