This document discusses soil erosion, defining it as the loss of soil through various natural and human-accelerated factors. It identifies water and wind as the main agents of erosion, describing a three phase process of detachment, transportation, and deposition. Soil erosion is classified into geological erosion from natural forces and accelerated/abnormal erosion influenced by human activities like deforestation, overgrazing, and faulty agricultural practices. The problems caused by erosion include damage to coastlines, health hazards, costs of water purification, and siltation of irrigation systems.
Soil and water conservation engineering, water erosion, types of water erosion, splash erosion, sheet erosion, rill erosion, gully erosion, stream bank erosion, coastal erosion
This presentation includes description about water erosion, types of water erosion i.e. Raindrop erosion, Sheet erosion, Rill erosion, Gully erosion, Stream bank erosion, Sea-shore erosion Landslide/ slip erosion and Tunnel erosion.
This presentation will provide the knowledge on measurement of evaporation by using class A evaporation pan. In addition it will give you the knowledge regarding pan coefficient and crop coefficient.
Soil and water conservation engineering, water erosion, types of water erosion, splash erosion, sheet erosion, rill erosion, gully erosion, stream bank erosion, coastal erosion
This presentation includes description about water erosion, types of water erosion i.e. Raindrop erosion, Sheet erosion, Rill erosion, Gully erosion, Stream bank erosion, Sea-shore erosion Landslide/ slip erosion and Tunnel erosion.
This presentation will provide the knowledge on measurement of evaporation by using class A evaporation pan. In addition it will give you the knowledge regarding pan coefficient and crop coefficient.
IN this presentation cover Erosivity and erodibilty
Different methods to calculate soil loss.
Er. Gurpreet Singh
M.tech from PAU, Ludhiana
Assistant Prof.
Khalsa college.
Stormwater runoff occurs when precipitation from rain or snowmelt flows over the land surface. Flooding also occurs due to excessive high intensity rainfall over the rate of infiltration of soils. All are natural hazards. Both of these problems are to be solved through water management practices. This module highlights all these aspects.
Universal soil loss equation, soil loss estimation, factors of USLE, its use and limitation, soil loss measurement by multi slot divisor and coshocton wheel sampler
wind erosion and its control measures, factor affecting wind erosion, mechanics of wind erosion, types of soil transportation, suspension, saltation and surface creep, windbreak, shelterbelt, sand duns
Topics:
1, Introduction to Irrigation
2. Methods of Irrigation
3. Indian Agricultural Soils
4. Methods of Improving Soil Fertility & Crop Rotation
5. Soil-Water-Plant Relationship
6. Duty and Delta
7. Depth and Frequency of Irrigation
8. Irrigation Efficiency and Water Logging
Bio-drainage may be defined as “pumping of excess soil water using bio-energy through deep-rooted vegetation with a high rate of transpiration". It consists of AbsorptionTranslocation and Transpiration.
This presentation covers direct and indirect methods of moisture measurement with clear descriptions of installation, principle, interpretation of readings, advantages and disadvantages of each method.
soil erosion is the one of the severe problem now a days. we should know about types of soil erosion , its effect on environment and how it to be prevented by various method..in these slides gives brief idea about types and erosion of soil erosion.
Soil erosion is the washing or blowing away (by wind or water) of the top layer of soil (dirt).Erosion also leaves large holes in the earth, which can weaken buildings and even cause them to collapse.
IN this presentation cover Erosivity and erodibilty
Different methods to calculate soil loss.
Er. Gurpreet Singh
M.tech from PAU, Ludhiana
Assistant Prof.
Khalsa college.
Stormwater runoff occurs when precipitation from rain or snowmelt flows over the land surface. Flooding also occurs due to excessive high intensity rainfall over the rate of infiltration of soils. All are natural hazards. Both of these problems are to be solved through water management practices. This module highlights all these aspects.
Universal soil loss equation, soil loss estimation, factors of USLE, its use and limitation, soil loss measurement by multi slot divisor and coshocton wheel sampler
wind erosion and its control measures, factor affecting wind erosion, mechanics of wind erosion, types of soil transportation, suspension, saltation and surface creep, windbreak, shelterbelt, sand duns
Topics:
1, Introduction to Irrigation
2. Methods of Irrigation
3. Indian Agricultural Soils
4. Methods of Improving Soil Fertility & Crop Rotation
5. Soil-Water-Plant Relationship
6. Duty and Delta
7. Depth and Frequency of Irrigation
8. Irrigation Efficiency and Water Logging
Bio-drainage may be defined as “pumping of excess soil water using bio-energy through deep-rooted vegetation with a high rate of transpiration". It consists of AbsorptionTranslocation and Transpiration.
This presentation covers direct and indirect methods of moisture measurement with clear descriptions of installation, principle, interpretation of readings, advantages and disadvantages of each method.
soil erosion is the one of the severe problem now a days. we should know about types of soil erosion , its effect on environment and how it to be prevented by various method..in these slides gives brief idea about types and erosion of soil erosion.
Soil erosion is the washing or blowing away (by wind or water) of the top layer of soil (dirt).Erosion also leaves large holes in the earth, which can weaken buildings and even cause them to collapse.
What is Erosion?
Human Causes of Erosion
Natural Causes of Erosion
What are the Causes of Soil Erosion?
What are the Effects of Soil Erosion?
Soil Erosion Prevention Methods
PRINCIPLES OF EROSION: Types of erosion, factors affecting erosion, effects of erosion on land fertility and land capability, estimation of soil loss due to erosion, Universal soil loss equation.
In order to construct new building in such one place which already has existing building there is need to prepare method for demolish according by regulation or condition of the building. This is one of the method to demolish building.
Identification Of Soil Erosion Prone Zones Using Geomatics Technology In Part...IJERA Editor
Soil erosion is the removal and subsequent loss of soil by the action of water, ice, wind and gravity. Soil erosion is a process that occurs naturally at a slow rate. The average natural geologic rate of soil erosion is approximately 0.2 tons per acre per year. Erosion is the process were by the earth or rock is loosened or dissolved and removed from any part of earth‟s surface. Geological erosion is the rate at which the catchment or land would normally be eroded without any disturbance by human activity. If man alters the natural system by means of various land use practices that is caused accelerated erosion. The present study area is covering Parts of North Arcot The area is lies between E78°30'-E78°45' lattitudes N12°15'-N12°30„. The total aerial extent of the study area is 720 sq.km. It falls in the survey of India Toposheet 58 L11 on 1:50,000 scale. The IRS – 1D satellite imagery data were subjected to different types of image enhancement techniques and soil erosion areas were mapped out and GIS databases were generated showing the soil erosion areas using Arc Map 9.1 version. GIS overlay function was executed between soil erosion prone areas and the various controlling variables and the area has been fragmented into a number of polygons of land segments depending upon the controlling variables. Finally, the remedial measures were suggested for each land segment according to the controlling variables.
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The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
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2. • Definition: Loss of soil.
• Latin word :
‘erodere’ – to eat away /to excavate.
Problems caused by erosion:
• Damage to sea coast and formation of sand dunes.
• Diseases and public health hazards.
• Spent of money on water purification works.
• Siltation of irrigation channels, rivers & reservoirs.
• Problems in crop irrigation & consequent need of conserving the
water.
3. • Main active factors : Water & Wind.
• Three phase phenomenon:
1. Detachment
2. Transportation by erosion agents.
3. Deposition.
• Two forms of energy:
1. Potential energy : PE = m.gh (joules)
2. Kinetic energy : KE = ½ MV² (joules)
4.
5. • Erosion may be broadly classified into two groups:
1. Geological erosion
• Natural/normal erosion
• Without influence of human.
• Agents: Water, wind, gravity and glaciers.
• Loss of soil = formation of new soil.
2. Accelerated erosion/Abnormal erosion:
• Influence of human activities.
• Equlibrium b/w soil building & soil removal is disturbed.
6. • Removal of surface soil takes much faster than soil forming process.
• Agents : Water & Wind (Primary agent)
• It is classified into
1. Water erosion
2. Wind erosion.
• In India : (Total geographical area – 326 million hec. of land ; Eroded
area – 81 million hec.)
7. Factors responsible for soil erosion:
Excessive deforestation Over grazing
Faulty agril. Practices
8. Evil effects of erosion:
1. Loss of productive or fertile soil.
2. Deposition of sand on productive land
3. Silting of lakes & reservoirs
4. Water scarcity
5. Fragmentation of land.
