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Land Resources in Earth
This presentation describes a lot about land resources and its degradation. In this presentation you will learn about , what is land? , what are land resources? , their Importance , soil , fertile soil ,importance of fertile soil, soil erosion , causes of soil erosion, human activities and you will also learn about soil conservation techniques.
Solid earth surface that is not permanently covered with water.Land Resources
Land Resources can simply be defined as resources available by land.
Most Important type of Natural Resources , upon which all human
activity based since the origin of human species
Ex : - Mountains, grasslands, Forest etc.Soil
Soil is the mixture of minerals, Organic matter, Liquids and countless
living organisms that supports life on earth.
A fertile soil has abundance in plants nutrients including Nitrogen ,
Phosphorus and Potassium. Importance of Fertile soil
• Fertile soil Ensures plant survival
• Fertile soil Ensures our survivalSoil Erosion
Washing or blowing away(by wind) top layer of soil.Causes of soil erosionRainFarmingSlope of LandLack of vegetation
• NaturalWindEffects of soil erosion
• Loss of soil fertility
• Clogging and water pollutionSoil Conservation
It involves ways to reduce soil erosion and restoring fertility of
the soil.Crop Rotation
Different crops on different times on same land.Reforestation
Growing trees on land which have lost their vegetation.Terrace Farming
very helpful in hilly region.Wind Breakers
Trees are planted in wind direction to protect against high velocity
Increases soil fertility.Increasing Knowledge
Educating More and more people.