land resources and land pollution
Post on 12-Apr-2017
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L AND RESOURCES AND L AND POLLUT ION
Prepared By: Jay Bhanushali 140130103024 Patel Ashvini 150130103009 Bhatiya Sunil 150130103014 Bhojani Nemish 150130103017 Harsh kamaliya 150130103042
GEC GANDHINAGAR
LAND AS A RESOURCE• Land is the major constituent of the lithosphere and is an
important resource for mankind and other organisms.• The living organisms, plants and vegetation are supported by land.• It is rich in resources like minerals, organic as well as inorganic
matter and to some extent air and water.• It plays pivot role in some complex processes such as production
of food as well as decomposition of dead organic matter by microbes.
VARIOUS USES OF LAND
• Food production(Agriculture).• Houses the living species of the nature.• Industrial and Commercial purpose.• Residential Purpose.• Waste Disposal.• Energy purpose.
LAND USAGE PATTERN• Agricultural Land 11%• Pastures and Meadows 22%• Forest Land 30%• Urban Land 37%
Land Degradation
Land degradation is the temporary or permanent lowering of the productive capacity of land (UNEP, 1992). Causes of Land Degradation:
Natural Causes:•Heavy rains •Natural disasters•High – speed winds
Anthropogenic Causes:
Mining: Urbanization: Deforestation: Overgrazing:Dams and Canals: Fertilizers:
SUSTAINABLE LAND MANAGEMENT• SLM can be defined as “the use of land resources, including
soils, water, animals and plants, for the production of goods to meet changing human needs, while simultaneously ensuring the long-term productive potential of these resources and the maintenance of their environmental functions” (UN Earth Summit, 1992). • TerrAfrica (2005) has further defined sustainable land
management as “the adoption of land use systems that, through appropriate management practices, enables land users to maximize the economic and social benefits from the land while maintaining or enhancing the ecological support functions of the land resources”.
We can consider land as renewable resource if utilized carefully.
The roots of the trees and grass bind the soil. But if the forests are depleted and grass lands are overgrazed, soil erosion, i.e. , loss of top productive soil occurs and the land becomes unproductive.
Intense irrigation leads to water logging and salinized soil on which crop cannot grow.
Land is also converted into a non-renewable resource when highly toxic material and nuclear waste is dumped in it.
Thus, if managed efficiently, this natural resource indeed can be considered as a renewable resource
YES….!!!!
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