PROGRAMME FOR THE SUSTAINABLE MANAGEMENT OF NATURAL RESOURCES
SUSTAINABLE MANAGEMENT OF NATURAL RESOURCES - II
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UMANG 10: SUSTAINABLE MANAGEMENT OF NATURAL RESOURCES - II
Transcript of SUSTAINABLE MANAGEMENT OF NATURAL RESOURCES - II
UMANG 10:
SUSTAINABLE MANAGEMENT OF
NATURAL RESOURCES - II
Natural ResourcesResources that occur with the natural environment,
without the action of mankind
Natural Resources
Renewable Resources Non-Renewable Resources
Water
Need to Conserve Water
❖ Basic necessity for all life forms
❖ Increasing population and misuse by humans is depleting available water levels.
Methods of Water Conservation
Dams and Canal Systems
❖ Large dams can ensure the storage of adequate water for irrigation, and also for generating electricity
❖ Canal systems leading from these dams can transfer large amounts of water great distances.
Dams and Canal SystemsProblems caused:
(i) Social problems because they displace large number of peasants and tribals without adequate compensation or rehabilitation
(ii) Economic problems because they
swallow up huge amounts of public money without the generation of proportionate benefits
(iii) Environmental problems because they
contribute enormously to deforestation and the loss of biological diversity.
Dams and Canal Systems
Water Harvesting
● Watershed management emphasises scientific soil and water conservation in order to increase the biomass production.
● The aim is to develop primary resources of land and water, to produce secondary resources of plants and animals for use in a manner which will not cause ecological imbalance.
Water Harvesting
A few traditional methods in India still in use today:
Khadins, tanks and nadis in Rajasthan, bandharas and tals in Maharashtra, bundhis in Madhya Pradesh and Uttar Pradesh, ahars and pynes in Bihar, kulhs in Himachal Pradesh, ponds in the Kandi belt of Jammu region, and eris (tanks) in Tamil Nadu, surangams in Kerala, and kattas in KarnatakaBandhara
Water Harvesting
A few traditional methods in India still in use today:
Khadins, tanks and nadis in Rajasthan, bandharas and tals in Maharashtra, bundhis in Madhya Pradesh and Uttar Pradesh, ahars and pynes in Bihar, kulhs in Himachal Pradesh, ponds in the Kandi belt of Jammu region, and eris (tanks) in Tamil Nadu, surangams in Kerala, and kattas in KarnatakaKuhl
Water Harvesting
Traditional water harvesting system in India - e.g., khadin system
Water Harvesting
In largely level terrain, the water harvesting structures are mainly crescent shaped earthen embankments or low, straight concrete-and- rubble “check dams” built across seasonally flooded gullies. Monsoon rains fill ponds behind the structures.
Water HarvestingAdvantages of water stored in ground:
- Does not evaporate- Spreads out to recharge wells- Provides moisture for
vegetation over a wide area- Protected from contamination
by human and animal waste
Coal and Petroleum
Coal and PetroleumExhaustible natural resources were formed from the dead remains of living organisms (fossils); therefore, these natural resources are also known as fossil fuels.
E.g. coal, petroleum and natural gas
Coal and Petroleum● When coal and petroleum are burnt, the
products are carbon dioxide, water, oxides of nitrogen and oxides of sulphur are released.
● When combustion takes place in insufficient air (oxygen), then carbon monoxide is formed instead of carbon dioxide.
● Oxides of sulphur and nitrogen and carbon monoxide are poisonous at high concentrations and carbon dioxide is a greenhouse gas.
Conservation of Natural Resources
Using solar energy wherever possible
A BReduce Recycle
DC RenewReuse
Q. Which of these is not part of the 3 R’s
A BReduce Recycle
DC RenewReuse
Q. Which of these is not part of the 3 R’s
A BCoal Petroleum
DC A and BWood
Q. Which of these is/are fossil fuels?
A BCoal Petroleum
DC A and BWood
Q. Which of these is/are fossil fuels?
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