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SOIL DEGRADATION What is the soil degradation? => The decline of soil quality and quantity Loss of soil micro-organisms Removal of dead organic matter Biological Reduction in stabilizing plant communities Changing to physical structure Changing to soil condition Changes leading to acidification, toxic, nutrient reduction, increasing salinity Physical Chemical CAUSE BY TOXIC THE CHANGING IN LAND USE THE CAUSES OF EROSION Population growth Human Farming technologies: Unsustainable agriculture, irrigation etc Overgrazing Deforestation These cause soil erosion, desertification, toxic and salinization THE CAUSES OF SOIL DEGRADATION Over-grazing Action of wind, water etc Faulty methods of agriculture, wrong plough Other factors cause by human ( mining activities, industrial activity, etc Ex Wind erosion reduces the productive capacity of soil How to prevent soil erosion? Terrace farming: to prevent the soil from being washed away Increasing area under forests and must stop destroy forest Leveling farm and correct plough Construction of dams: River cause soil erosion Dams are built in the upper course of rivers to control erosion of soil … Rewrite the following passage from the prompts given below: Soil / degradation / defined / health status / as a change / in the soil / is Sustainable / land use can / help to / the impacts of agriculture / and / livestock / reduce The / health of soil / concern to/ is / a primary / whose livelihoods / depend / on /well managed agriculture / farmers and the global community Erosion caused by deforestation / can / also / lead to / increased flooding Soil erosion / when soil is removed / through / the action of wind and water at a greater rate than it is formed/ occurs often / ploughing / is / a cause of / land degradation
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