the important of proper management of development activities by shirley&bong.ppt

7/29/2019 The Important of Proper Management of Development Activities by shirley&bong.ppt

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The Important of Proper

Management of Development

Activities and the Ecosystem


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1.Sustainable development isthe balance between the demands for

resources with the need to conserve the

resources.2.Human activities that are harmful to the

environment have a serious environmental

impact.


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Measures taken in the

management of

development activities

1.Implementation of laws

2.Use of technology

3.Education on the

management of

resources

4.Preservation and

conservation of thenatural resources

5.The practice ofbiological control

6.The use of

renewable energy

7.The efficient use of

energy


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Implementation of laws


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Laws are created to protect the

environment.a)Environmental Quality Act, 1974, 1985

Prevents and controls pollution.

b)National Forestry Act, 1984

Protects and preserves our forests and wildlife.

c)Pesticides Act, 1974

Controls the use of pesticides.

d)Protection of Wildlife Act, 1972Protects wildlife.

e)Fisheries Act, 1985

Controls marine pollution


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Use of technology


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Use of technology

1. Modern technology can be used to reduce pollution and

prevent further damage of the environment.

2. Rubbish can be sorted into recyclable materials and non-

recyclable materials. Non-recyclable materials can be burnt in

incinerators where heat produced can be reclaimed and used in

heating or to generate electricity.

3. Catalytic converters are used to reduce the amount of nitrogen

oxides emitted and to convert harmful gases released during

combustion if fossil fuels into less harmful products.

4. Unleaded petrol can be used to replace leaded petrol.

5. Filters are fixed on chimneys of factories to reduce the amount

of pollutants.

6. Sewage is treated before it discharged into water.

7. Bacteria can be used to breakdown oil which is spilled in the

sea.


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Recycling means collecting and segregating

waste according to the types of materials and

turning this waste into new products.

Reuse means use things such as old plastic

containers and bottle again for other purposes

instead of throwing them away.

Reduce means cutting down on the use of

materials. For example, the use of plastic bagswhich are non-biodegradable should be reduced.

Instead, use paper bags which are biodegradable

and environment friendly.

Recover means to harness heat energy from the

burning of materials or refuse in factories orincineration plants. This heat energy can be used

to generate electricity.


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1.Preservation involves efforts to protect the ecosystem to

maintain its dynamic equilibrium.

2.Conservation involves efforts to return an affected ecosystem

back to its dynamic equilibrium.

3.Measure that are taken include:

a)Control of grazing by animals

b)Farming along contours

c)Crop rotation

d)Cultivation on terraces

e)Proper use of fertilizers

f)Effective irrigation and drainage4.Water sources must bepreserved to ensure clean water supply.

4.Mangrove swamps are rich in biodiversity. Mangrove swamps

are important in flood control, nutrient retention, sediment

control and prevention of coastal erosion. Efforts must be made

to preserve and conserve the mangrove swamps.


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1)Renewable energy is the energy flow that occurs naturally in

the environment and be harnessed for the benefit of humans.

2)It is inexhaustible and does not pollute the environment.3)Renewable energy are:

Solar energy

Wind energy

Geothermic energy

Hydroelectric energy

Biomass energy

Wave energy

4)Non-renewable energy like fossil fuels will be exhausted and

cannot be renewed if its usage is not controlled.

5)Use natural gas and reduce combustion of fossil fuels.

6)Invention of the hybrid and electric cars can reduce ourdependence on fossil fuels.

Renewable energy


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The efficient use of energy

Reduce the burning of coal, petroleum and other fossil fuels.

Substitute natural gas for coal at power plants.

Improve fuel efficiency in vehicles-use cars that run on energy-efficient

engines.

Use a cleaner fuel by reducing the content of sulphur in diesel andswitching to gas.

Improve energy efficiency in factories.

Use more hybrid cars which combine electric and gasoline engines.


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Biological control

Biological control is the use of natural predators to control the population of

pest species. Example:

The breeding of owls to control the rat population in oil palm estate.

The use of female insects lchneumor that produce larvae which feed the

caterpillars that bore into the paddy stems.The use of guppy fish to eliminate mosquito larvae.


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the important of proper management of development activities by shirley&bong.ppt

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