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Role of individual in saving natural resources P.YESWANTH ECE-A
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Page 1: Role of individual in saving natural resources

Role of individual in saving natural

resources

P.YESWANTH ECE-A

Page 2: Role of individual in saving natural resources

Natural resources

The resources that are derived from the environment are called as natural resources.

Some of them are most essential for our living while most of them are used for satisfying our needs.

They are used to promote the man kind.Every man made item consists of natural

resources.Sun is the major natural resource which

never ends.

Page 3: Role of individual in saving natural resources

Types of Natural Resources

They are mainly classified into 6 types:1.Forest Resources2.Water Resources3.Mineral Resources4.Food Resources5.Land Resources6.Energy Resources

Page 4: Role of individual in saving natural resources

Forest Resources

Forest : land occupied with wide range of flora and fauna which supports ecosystem.

Uses : 1. They give us wood for different purposes.

2. They are used in medicines . 3. They give fuels like fossil fuels ,

coal. 4. They have commercial use like

honey , gum , lac , paper. 5. they provide 30% of oxygen.

Page 5: Role of individual in saving natural resources

Uses

Page 6: Role of individual in saving natural resources

Threats

Mainly two types of threats are present.1.Natural disasters2.Man induced threatsForest fires

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* International Federation of Red Cross and Red Crescent Societies (The Economist, Sept 6, 1997)

High wind: 21%

Earthquake: 8%

Flood: 19%

Other naturaldisasters: 21%

Volcanoes: 1%

Drought & Famine: 6%Landslides: 3%

Man-madedisasters: 34%

Disasters*by type: 1971-96

Total: 8,219,000

Page 8: Role of individual in saving natural resources

Reasons for depletion of Forest resourcesOver-consumption/excessive or unnecessary use of resourcesNon-equitable distribution of resourcesOverpopulation.Slash and burn agricultural practices, currently occurring in

many developing countries.Technological and industrial development.ErosionHabitat degradation leads to the loss of Biodiversity.IrrigationMining for oil and minerals.Aquifer depletion.Forestry Forest Reserves within a particular country.Pollution or contamination of resources.

Page 9: Role of individual in saving natural resources

Control MeasuresControlling deforestation : Efforts to control deforestation must be taken

on a global scale. In addition to making sure that emissions

from deforestation are kept to a minimum, an effort to educate people .

Reforestation is also being encouraged in many countries in an attempt to repair the damage that deforestation has done.

Page 10: Role of individual in saving natural resources

Participate in your community's recycling programs. Implement a recycling program at your office too.

Buy products manufactured with recycled paper. Many companies use their reputation as recyclers to attract business from eco-conscious customers.

Reuse junk mail and scraps of paper whenever possible. Instead of pitching old envelopes, use them to keep notes or make grocery lists.

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Oceans (71%)

Land(29%)

Most of theEarthiscoveredby water

“...water, water, every wherenor any drop to drink!”

Page 12: Role of individual in saving natural resources

Water Pollution Water pollution: 1.The main problems of pollution that need to be

addressed in the country are the following: Pollution from domestic sewage The high rates of drinking water and drainage The general lack of sewage treatment plants. The discharge of large quantities of untreated

sewage at specific points of the water resource systems or along the coastline constitute the main water pollution source in our country

Page 13: Role of individual in saving natural resources

Remedies for depletion of Water resources

Improvement of efficiency in water use. Identification of water resources. Technical training and education about

water . Information about water resources and flood

mitigation. Several programs are implemented such as 1.Integrated development and use of water resources .2.Drinking water supply and sanitation

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Mineral ResourcesMinerals : which have definite chemical

properties and indefinite chemical properties .

There are 2 types of minerals namely 1.Metallic2.Non-metallicExamples for metallic minerals are

Iron , gold , Alluminium , Silver etc.,Examples for some non metallic minerals

are Gypsum , Lime stone , Coal etc.,

Page 15: Role of individual in saving natural resources

Threats to Mineral Resources1.Mining2.Disturbences to mantle layer which leads to

Earth quakes , drowning of land.3.Deforestration –leads to loss of Bio diversity.4.The acid mine drain-by usage of acids to

extraction process which leads to mix of acids in soil and Aquifer.

5.Loss of marine life due to oil spils while extracting oil.

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Remedies for depletion of Mineral resourcesWe must go for bio mining where we use

microbial organisms for mining purpose.Mining waste treatment technology.EOR: This process must be implemented to

extract oil by using bacteria.

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Food ResourcesFood is any substance consumed to provide

nutritional support for the body. It is usually of plants or animal origin, and contains

essential nutrients, such as carbohydrates, fats, proteins, vitamins, or minerals.

It is also said as source of energy for human activities.

Based on production rate agriculture is divided into 2 types as

1.Subsistence2.IntensiveThese are traditional practices

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Green revolution shifted traditional practices to modern practices.

It was first given by Norman Borlang .There were many draw backs such as salinity

, soil erosion , water logging , death of non micro organisms.

For these problems Albert Howard introduced some practices known as organic farming.

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Remedies for depletion of Food ResourcesOrganic farming must be followed which is a

combination of traditional farming and modern farming.

Crop rotation method must be followed .Contour farming or terrace farming method

must be followed to overcome irrigation problems.

We have to enrich the soil fertility by using natural ways not by using pesticides.

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Land ResourcesLand is an area which constitutes of biotic

and a biotic compounds.Due to soil erosion and land degradation soil

is being eroded by agents like wind , water and human activities .

Improper agricultural practices like Monoculture and also introduction of alien species through hybrid varieties also leads for the erosion of soil.

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Control MeasuresTwo control measures like1.Biological control2.Mechanical control are practices .• In biological control measures 1.Mulching2.Polyculture3.Crop rotation must be followed .In mechanical control process1.counter farming2.terrace farming3.Step farming must be practiced .

Page 22: Role of individual in saving natural resources

Energy resourcesThe capacity to do work is known as energy.It is divided as 2 types:1.Renwable 2.Non renewable resourcesThere are many disadvantages by using these

resources1.They leads to global warming .2.They pollute air.3.Release of carbon dioxide and other harmful gases.Renewable resources are costly and space occupyingSun cannot be used in cooler areas.

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Remedies to control depletion of Energy ResourcesUse diesel car to reduce your dependence on

fossil fuels.Go solar to reduce the use of non renewable

resources.Telecommute.Turn your lawn into an organic garden.Heat with wood to reduce your dependence

on non renewable resources and fossil fuels.

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References Class notesWikipedia