land resources and land pollution
Post on 12-Apr-2017
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LAND AND LAND RESOURCES
LAND RESOURCES and Land pollutionPrepared By: Jay Bhanushali 140130103024 Patel Ashvini 150130103009 Bhatiya Sunil 150130103014 Bhojani Nemish 150130103017 Harsh kamaliya 150130103042
LAND AS A RESOURCELand 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 landFood production(Agriculture).Houses the living species of the nature.Industrial and Commercial purpose.Residential Purpose.Waste Disposal.Energy purpose.
Land usage patternAgricultural Land 11%Pastures and Meadows 22%Forest Land 30%Urban Land 37%
YOUR NATURAL RESOURCE IS INDANGER!!!
Land DegradationLand degradation is the temporary or permanent lowering of the productive capacity of land (UNEP, 1992).Causes of Land Degradation:Natural Causes:Heavy rains Natural disastersHigh speed winds
Mining: Urbanization: Deforestation: Overgrazing:Dams and Canals: Fertilizers:
WHAT TO DO?
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.
WHAT YOU CAN DO??
IS LAND A RENEWABLE RESOURCE?
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