1.Measures to solve problem of land degradation
2.explain formation of soil erosion in detail
3.measures to check soil erosion
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1) (1)- by preventing over grazing of animals
(2)- by minimizing the use use pesticides and fertilizers.
(3)- by preventing deforestation.
(4)- proper management of wate lands.
(5)- contol of mining activities, proper discharge and disposal of industrial wastes
2) What Is Soil Erosion?
When things erode, they wear away due to some force acting on them. Just look at any coastline and you will notice how the constant pounding force from wind and waves causes erosion of the rocky structures, leaving behind all kinds of interesting cliffs, caves and structures. Soil is not immune to erosion, and like rocks along a coastline, soil can erode due to the effects of forces, such as water, wind and farming practices. In this lesson, we will learn about soil erosion and the factors that cause it.
Soil is naturally created when small pieces of weathered rocks and minerals mix with organic materials from decaying plants and animals. Soil creation is a slow process, taking many years. However, the soil that is created is constantly subjected to natural and manmade forces that disrupt it.
Soil erosion is defined as the wearing away of topsoil. Topsoil is the top layer of soil and is the most fertile because it contains the most organic, nutrient-rich materials. Therefore, this is the layer that farmers want to protect for growing their crops and ranchers want to protect for growing grasses for their cattle to graze on.
Water Erosion and Surface Water Runoff
One of the main causes of soil erosion is water erosion, which is the loss of topsoil due to water. Raindrops fall directly on topsoil. The impact of the raindrops loosens the material bonding it together, allowing small fragments to detach. If the rainfall continues, water gathers on the ground, causing water flow on the land surface, known as surface water runoff. This runoff carries the detached soil materials away and deposits them elsewhere.
3. Any three measures to control soil erosion are :
1)Contour ploughing: ploughing paralllel in thr form of contours to slow down the flow of water is called contour ploughing. It helps to reduce erosion.
2)Terrace farming:Broad flat steps or terraces are constructed to reduce the velocity of the flowing water which thus helps reduce soil erosion.
3)Shelter belts:Rows of trees are planted to check the wind movement.This prevents the soil by getting eroded by wind.
Thumbs up if u r satisfied. :)
(2)- by minimizing the use use pesticides and fertilizers.
(3)- by preventing deforestation.
(4)- proper management of wate lands.
(5)- contol of mining activities, proper discharge and disposal of industrial wastes
2) What Is Soil Erosion?
When things erode, they wear away due to some force acting on them. Just look at any coastline and you will notice how the constant pounding force from wind and waves causes erosion of the rocky structures, leaving behind all kinds of interesting cliffs, caves and structures. Soil is not immune to erosion, and like rocks along a coastline, soil can erode due to the effects of forces, such as water, wind and farming practices. In this lesson, we will learn about soil erosion and the factors that cause it.
Soil is naturally created when small pieces of weathered rocks and minerals mix with organic materials from decaying plants and animals. Soil creation is a slow process, taking many years. However, the soil that is created is constantly subjected to natural and manmade forces that disrupt it.
Soil erosion is defined as the wearing away of topsoil. Topsoil is the top layer of soil and is the most fertile because it contains the most organic, nutrient-rich materials. Therefore, this is the layer that farmers want to protect for growing their crops and ranchers want to protect for growing grasses for their cattle to graze on.
Water Erosion and Surface Water Runoff
One of the main causes of soil erosion is water erosion, which is the loss of topsoil due to water. Raindrops fall directly on topsoil. The impact of the raindrops loosens the material bonding it together, allowing small fragments to detach. If the rainfall continues, water gathers on the ground, causing water flow on the land surface, known as surface water runoff. This runoff carries the detached soil materials away and deposits them elsewhere.
3. Any three measures to control soil erosion are :
1)Contour ploughing: ploughing paralllel in thr form of contours to slow down the flow of water is called contour ploughing. It helps to reduce erosion.
2)Terrace farming:Broad flat steps or terraces are constructed to reduce the velocity of the flowing water which thus helps reduce soil erosion.
3)Shelter belts:Rows of trees are planted to check the wind movement.This prevents the soil by getting eroded by wind.
Thumbs up if u r satisfied. :)
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