This document discusses natural resources and focuses on land resources. It defines natural resources as materials provided by nature that can be transformed into more valuable resources. Renewable resources are replenished rapidly while non-renewable resources cannot be renewed. Land is discussed as a resource, noting issues like degradation from causes such as deforestation, overgrazing, and pollution. Soil formation and functions are outlined. Soil erosion types and causes are described along with control methods. Desertification causes like deforestation and effects are also summarized.
This document discusses natural resources and focuses on land resources. It defines natural resources as materials provided by nature that can be transformed into more useful forms. Renewable resources can be replenished, while non-renewable resources cannot be renewed. Land is examined as a resource, noting issues like degradation, soil erosion, and reaching carrying capacity. Soil formation and characteristics are outlined. Land degradation can be caused by natural disasters or human activities like mining, deforestation, and dumping waste. Control of soil erosion includes conservation tillage and contour farming. Desertification is also discussed.
This document provides an overview of topics related to environmental science and sustainability. It includes sections on:
1. Human population and demographics like growth rates, structures, and projections.
2. Renewable and non-renewable resources like forests, water, and energy. It discusses uses, conservation, and problems from overexploitation.
3. Key concepts in environmental science like habitats, pollution, and effects of deforestation. Diagrams, definitions, and exam strategies are also provided to help students understand and apply the content.
This document discusses threatened agricultural resources, specifically soil. It defines soil and explains its importance for food production, storage, filtration and more. Soil degradation through improper use is defined, and its impacts are listed as loss of organic matter, declining fertility and structural condition, erosion, and effects from pollution. Ways to reduce land degradation and soil issues are discussed, such as gardening, afforestation, conservation tillage, wind breakers, and fertilizer use. Land reclamation, the process of creating new land from bodies of water, is also summarized.
The document discusses soil degradation in Africa, explaining that seasonal rainfall patterns, climate change, and poor farming techniques like slash-and-burn agriculture have contributed to soil degradation over time through erosion, loss of nutrients, and desertification. It notes that 91% of Africa's land is susceptible to desertification due to dry conditions and seasonal rains, and that continued soil degradation poses problems for Africa's agriculture and food security.
Humans have brought Earth close to a biotic crisis by damaging the environment through various issues at the global, national, and local levels. These environmental problems have socio-economic and cultural impacts. The key issues include global warming, ozone layer depletion, acid rain, deforestation, loss of biodiversity, pollution, desertification, and waste disposal. While some environmental changes occurred naturally in the past, humans now have the potential to disrupt the entire global ecosystem if environmental damage is not addressed.
This document discusses various water quality parameters including temperature, dissolved oxygen, pH, alkalinity, hardness, turbidity, and conductivity. It describes how each parameter is measured, factors that influence it both naturally and artificially, and potential effects on aquatic life. For example, it explains that temperature affects gas solubility and organism growth, while dissolved oxygen depends on photosynthesis and respiration and its depletion can change ecosystems. The document also summarizes issues like eutrophication caused by excess nutrients.
Role of individual in preserving natural resources (1)vardhamanece
Individuals play an important role in preserving natural resources in 3 key ways:
1. Conserving renewable resources like forests and water by reducing consumption, practicing sustainable agriculture, and preventing pollution.
2. Reducing the use of non-renewable resources like minerals by using more efficient technologies and recycling.
3. Adopting energy conservation practices like proper insulation, switching to LED bulbs, and maintaining appliances to reduce energy bills and dependency on non-renewable sources. Together, individual efforts can help ensure natural resources last for future generations.
This document discusses natural resources and focuses on land resources. It defines natural resources as materials provided by nature that can be transformed into more useful forms. Renewable resources can be replenished, while non-renewable resources cannot be renewed. Land is examined as a resource, noting issues like degradation, soil erosion, and reaching carrying capacity. Soil formation and characteristics are outlined. Land degradation can be caused by natural disasters or human activities like mining, deforestation, and dumping waste. Control of soil erosion includes conservation tillage and contour farming. Desertification is also discussed.
This document provides an overview of topics related to environmental science and sustainability. It includes sections on:
1. Human population and demographics like growth rates, structures, and projections.
2. Renewable and non-renewable resources like forests, water, and energy. It discusses uses, conservation, and problems from overexploitation.
3. Key concepts in environmental science like habitats, pollution, and effects of deforestation. Diagrams, definitions, and exam strategies are also provided to help students understand and apply the content.
This document discusses threatened agricultural resources, specifically soil. It defines soil and explains its importance for food production, storage, filtration and more. Soil degradation through improper use is defined, and its impacts are listed as loss of organic matter, declining fertility and structural condition, erosion, and effects from pollution. Ways to reduce land degradation and soil issues are discussed, such as gardening, afforestation, conservation tillage, wind breakers, and fertilizer use. Land reclamation, the process of creating new land from bodies of water, is also summarized.
The document discusses soil degradation in Africa, explaining that seasonal rainfall patterns, climate change, and poor farming techniques like slash-and-burn agriculture have contributed to soil degradation over time through erosion, loss of nutrients, and desertification. It notes that 91% of Africa's land is susceptible to desertification due to dry conditions and seasonal rains, and that continued soil degradation poses problems for Africa's agriculture and food security.
Humans have brought Earth close to a biotic crisis by damaging the environment through various issues at the global, national, and local levels. These environmental problems have socio-economic and cultural impacts. The key issues include global warming, ozone layer depletion, acid rain, deforestation, loss of biodiversity, pollution, desertification, and waste disposal. While some environmental changes occurred naturally in the past, humans now have the potential to disrupt the entire global ecosystem if environmental damage is not addressed.
This document discusses various water quality parameters including temperature, dissolved oxygen, pH, alkalinity, hardness, turbidity, and conductivity. It describes how each parameter is measured, factors that influence it both naturally and artificially, and potential effects on aquatic life. For example, it explains that temperature affects gas solubility and organism growth, while dissolved oxygen depends on photosynthesis and respiration and its depletion can change ecosystems. The document also summarizes issues like eutrophication caused by excess nutrients.
Role of individual in preserving natural resources (1)vardhamanece
Individuals play an important role in preserving natural resources in 3 key ways:
1. Conserving renewable resources like forests and water by reducing consumption, practicing sustainable agriculture, and preventing pollution.
2. Reducing the use of non-renewable resources like minerals by using more efficient technologies and recycling.
3. Adopting energy conservation practices like proper insulation, switching to LED bulbs, and maintaining appliances to reduce energy bills and dependency on non-renewable sources. Together, individual efforts can help ensure natural resources last for future generations.
Environmental science studies environmental problems and human impacts on the environment using various academic fields. Environmental health focuses on relationships between people and their environment to promote human well-being. Environmental sanitation aims to reduce disease exposure through clean living conditions. It breaks disease cycles and protects public health. Natural resources include renewable resources that replenish and nonrenewable resources that do not replenish or take long to renew. Careless consumption can lead to deforestation, desertification, species extinction, and resource depletion. Forest, water, mineral, food, energy, and land resources and their conservation are discussed.
- The document discusses the concept of hydrologic space and the role of forests in the water cycle.
- It notes that deforestation in West Africa may reduce rainfall in the Ethiopian Highlands by up to 25% due to decreased evapotranspiration and atmospheric moisture recycling.
- The analysis suggests catchment-scale studies alone do not fully capture forests' role in supplying moisture across large regions; a broader hydrologic space perspective is needed to understand impacts on water availability.
AGRICULTURE AND ENVIRONMENTAL MANAGEMENT
THEME 5.0: AGRICULTURE AND ENVIRONMENTAL MANAGEMENT
Environmental degradation
Environmental degradation is the deterioration of the environment through depletion of resources such as air, water and soil; the destruction of ecosystems and the extinction of wildlife. It is defined as any change or disturbance to the environment perceived to be deleterious or undesirable. As indicated by the I=PAT equation, environmental impact (I) or degradation is caused by the combination of an already very large and increasing human population (P), continually increasing economic growth or per capita affluence (A), and the application of resource depleting and polluting technology (T).
Environmental degradation is one of the ten threats officially cautioned by the High-level Panel on Threats, Challenges and Change of the United Nations. The United Nations International Strategy for Disaster Reduction defines environmental degradation as "The reduction of the capacity of the environment to meet social and ecological objectives, and needs". Environmental degradation is of many types. When natural habitats are destroyed or natural resources are depleted, the environment is degraded. Efforts to counteract this problem include environmental protection and environmental resources management.
This document discusses eutrophication of water bodies. It defines eutrophication as excessive plant growth caused by high nutrient levels. It classifies bodies of water based on their nutrient levels from oligotrophic to hypertrophic. The main causes of eutrophication are nutrient runoff from agriculture and sewage. This can lead to algal blooms, low oxygen, changes in ecosystems, and health impacts. Monitoring nutrient levels and preventing nutrient sources can help manage eutrophication.
The document discusses the loss of biodiversity and extinction of species. It notes that up to 70% of the world's known species risk extinction if global temperatures rise more than 3.5°C due to human activities like overusing resources, climate change, and habitat destruction. The top three groups of species facing extinction are amphibians, birds, and mammals. Without action from governments and societies to protect biodiversity, it will take a long time for nature to recover from the effects of human-caused climate change and environmental degradation.
Soil Conservation
Soil Essay
Water Conservation
Speech On Water Conservation
Soil Case Study
Water Conservation Of Water
Soil Conservation
Soil Salinity
Water Conservation Essay
Session 6.4 es as a vehicle for synergies btwn climate change mitigation & ad...World Agroforestry (ICRAF)
This document discusses how environmental services can promote synergies between climate change mitigation and adaptation. It argues that mitigation and adaptation efforts are interdependent, especially in land-use sectors. Failure in adaptation undermines mitigation efforts, and poor mitigation leads to more expensive adaptation needs. It highlights key ecosystem services like pollination, nutrient cycling, and hydrological functions that support both mitigation and adaptation. The document concludes that targeting ecosystem restoration and management to improve these services could enhance opportunities for synergies in land use sectors, and multifunctional landscape strategies provide the right direction.
Resource utilization and managing conflict in the pastoral community of Ethio...ILRI
Presentation by Dr Tilahun Amede for the 5th All Africa Conference on Animal Agriculture and the 18th Annual Meeting of the Ethiopian Society of Animal Production (ESAP), Addis Ababa, October 25-28, 2010.
【平成25年度 環境人材育成コンソーシアム(EcoLeaD)事業】
日付:平成25年12月14日
イベント:第3回アジア環境人材育成研究交流大会-国際シンポジウム1部
タイトル:地球の持続可能性と地域の持続可能性 / Global Sustainability and Local Sustainability
発表者:安井 至(独立行政法人製品評価技術基盤機構理事長、東京大学名誉教授、国際連合大学名誉副学長、EcoLeaD代表幹事)
詳細:http://www.eco-lead.jp/active/seminar/2013-2/
Copy of Unit 6 Notes 1_ Climate_Biomes_Energy (1).pptxVandanaYadav400309
Soil is important as it provides nutrients for plant growth, acts as a habitat for many organisms, and stores water for plants. Soil quality depends on factors like its nutrient content, texture, and ability to retain water. Threats to soil include erosion from overgrazing, poor farming practices, and damage from human activities, which can lead to soil degradation and loss of fertile land. Conservation methods aim to protect soil quality and prevent erosion, such as contour plowing, terracing, no-till farming, crop rotation, use of windbreaks, and controlling water runoff. The type of soil that forms is influenced by properties of the parent rock material and climatic factors like temperature and precipitation.
This document discusses resource depletion and its causes. It defines resource depletion as the depletion of resources like trees, oil, fish, and minerals beyond their replenishment rate. The main causes of resource depletion outlined are overconsumption, population growth, exploitation of resources, and consumerism. The document then examines specific examples of resource depletion like deforestation, overfishing, water depletion, and soil depletion. It notes the problems caused by each type of depletion like reduced crop yields and food shortages.
The document discusses various types of natural resources including renewable and non-renewable resources. It provides details about different types of forests and their characteristics. It also discusses various issues related to natural resources like deforestation, soil erosion, flooding, droughts, dams, food resources, energy resources, land resources, and mineral resources. Key points emphasized are sustainable use of resources and role of individuals in conservation of natural resources.
This document provides an overview of a lesson about sustainably using resources. It discusses soil resources and the importance of topsoil, describing how the Dust Bowl was caused by unsustainable farming practices that depleted topsoil. It also discusses freshwater resources, pollution sources like industrial chemicals and sewage, and ways to protect water quality. Finally, it covers atmospheric resources and air pollution like smog, acid rain, and greenhouse gases, noting some regulatory efforts that have led to improved air quality over time.
It includes:
1. what is a resource?
2. its types.
3. why do we need to conserve resources?
4. ways to conserve resources?
5. what is water resources?
6. Where and in what forms is water available on Earth?
7. How Can Human Actions Seriously Affect Water Resources?
8. How can the growing demand for water be met?
9. How could water resources be developed sustainably?
10. Conclusions On Water Resources
The document discusses natural resources and forests. It defines natural resources and classifies them as renewable and non-renewable. Forests are an important renewable resource that provide commercial products as well as ecological services like producing oxygen, regulating climate and hydrological cycles, and providing habitat. The major causes of deforestation include shifting cultivation, industrial use of wood, development projects, increasing food needs, and overgrazing.
The document discusses natural resources and forests. It defines natural resources and classifies them as renewable and non-renewable. Forests are an important renewable resource that provide commercial products as well as ecological services like producing oxygen, regulating climate and hydrological cycles, and providing habitat. The major causes of deforestation include shifting cultivation, industrial use of wood, development projects, increasing food needs, and overgrazing.
Leveraging Generative AI to Drive Nonprofit InnovationTechSoup
In this webinar, participants learned how to utilize Generative AI to streamline operations and elevate member engagement. Amazon Web Service experts provided a customer specific use cases and dived into low/no-code tools that are quick and easy to deploy through Amazon Web Service (AWS.)
Environmental science studies environmental problems and human impacts on the environment using various academic fields. Environmental health focuses on relationships between people and their environment to promote human well-being. Environmental sanitation aims to reduce disease exposure through clean living conditions. It breaks disease cycles and protects public health. Natural resources include renewable resources that replenish and nonrenewable resources that do not replenish or take long to renew. Careless consumption can lead to deforestation, desertification, species extinction, and resource depletion. Forest, water, mineral, food, energy, and land resources and their conservation are discussed.
- The document discusses the concept of hydrologic space and the role of forests in the water cycle.
- It notes that deforestation in West Africa may reduce rainfall in the Ethiopian Highlands by up to 25% due to decreased evapotranspiration and atmospheric moisture recycling.
- The analysis suggests catchment-scale studies alone do not fully capture forests' role in supplying moisture across large regions; a broader hydrologic space perspective is needed to understand impacts on water availability.
AGRICULTURE AND ENVIRONMENTAL MANAGEMENT
THEME 5.0: AGRICULTURE AND ENVIRONMENTAL MANAGEMENT
Environmental degradation
Environmental degradation is the deterioration of the environment through depletion of resources such as air, water and soil; the destruction of ecosystems and the extinction of wildlife. It is defined as any change or disturbance to the environment perceived to be deleterious or undesirable. As indicated by the I=PAT equation, environmental impact (I) or degradation is caused by the combination of an already very large and increasing human population (P), continually increasing economic growth or per capita affluence (A), and the application of resource depleting and polluting technology (T).
Environmental degradation is one of the ten threats officially cautioned by the High-level Panel on Threats, Challenges and Change of the United Nations. The United Nations International Strategy for Disaster Reduction defines environmental degradation as "The reduction of the capacity of the environment to meet social and ecological objectives, and needs". Environmental degradation is of many types. When natural habitats are destroyed or natural resources are depleted, the environment is degraded. Efforts to counteract this problem include environmental protection and environmental resources management.
This document discusses eutrophication of water bodies. It defines eutrophication as excessive plant growth caused by high nutrient levels. It classifies bodies of water based on their nutrient levels from oligotrophic to hypertrophic. The main causes of eutrophication are nutrient runoff from agriculture and sewage. This can lead to algal blooms, low oxygen, changes in ecosystems, and health impacts. Monitoring nutrient levels and preventing nutrient sources can help manage eutrophication.
The document discusses the loss of biodiversity and extinction of species. It notes that up to 70% of the world's known species risk extinction if global temperatures rise more than 3.5°C due to human activities like overusing resources, climate change, and habitat destruction. The top three groups of species facing extinction are amphibians, birds, and mammals. Without action from governments and societies to protect biodiversity, it will take a long time for nature to recover from the effects of human-caused climate change and environmental degradation.
Soil Conservation
Soil Essay
Water Conservation
Speech On Water Conservation
Soil Case Study
Water Conservation Of Water
Soil Conservation
Soil Salinity
Water Conservation Essay
Session 6.4 es as a vehicle for synergies btwn climate change mitigation & ad...World Agroforestry (ICRAF)
This document discusses how environmental services can promote synergies between climate change mitigation and adaptation. It argues that mitigation and adaptation efforts are interdependent, especially in land-use sectors. Failure in adaptation undermines mitigation efforts, and poor mitigation leads to more expensive adaptation needs. It highlights key ecosystem services like pollination, nutrient cycling, and hydrological functions that support both mitigation and adaptation. The document concludes that targeting ecosystem restoration and management to improve these services could enhance opportunities for synergies in land use sectors, and multifunctional landscape strategies provide the right direction.
Resource utilization and managing conflict in the pastoral community of Ethio...ILRI
Presentation by Dr Tilahun Amede for the 5th All Africa Conference on Animal Agriculture and the 18th Annual Meeting of the Ethiopian Society of Animal Production (ESAP), Addis Ababa, October 25-28, 2010.
【平成25年度 環境人材育成コンソーシアム(EcoLeaD)事業】
日付:平成25年12月14日
イベント:第3回アジア環境人材育成研究交流大会-国際シンポジウム1部
タイトル:地球の持続可能性と地域の持続可能性 / Global Sustainability and Local Sustainability
発表者:安井 至(独立行政法人製品評価技術基盤機構理事長、東京大学名誉教授、国際連合大学名誉副学長、EcoLeaD代表幹事)
詳細:http://www.eco-lead.jp/active/seminar/2013-2/
Copy of Unit 6 Notes 1_ Climate_Biomes_Energy (1).pptxVandanaYadav400309
Soil is important as it provides nutrients for plant growth, acts as a habitat for many organisms, and stores water for plants. Soil quality depends on factors like its nutrient content, texture, and ability to retain water. Threats to soil include erosion from overgrazing, poor farming practices, and damage from human activities, which can lead to soil degradation and loss of fertile land. Conservation methods aim to protect soil quality and prevent erosion, such as contour plowing, terracing, no-till farming, crop rotation, use of windbreaks, and controlling water runoff. The type of soil that forms is influenced by properties of the parent rock material and climatic factors like temperature and precipitation.
This document discusses resource depletion and its causes. It defines resource depletion as the depletion of resources like trees, oil, fish, and minerals beyond their replenishment rate. The main causes of resource depletion outlined are overconsumption, population growth, exploitation of resources, and consumerism. The document then examines specific examples of resource depletion like deforestation, overfishing, water depletion, and soil depletion. It notes the problems caused by each type of depletion like reduced crop yields and food shortages.
The document discusses various types of natural resources including renewable and non-renewable resources. It provides details about different types of forests and their characteristics. It also discusses various issues related to natural resources like deforestation, soil erosion, flooding, droughts, dams, food resources, energy resources, land resources, and mineral resources. Key points emphasized are sustainable use of resources and role of individuals in conservation of natural resources.
This document provides an overview of a lesson about sustainably using resources. It discusses soil resources and the importance of topsoil, describing how the Dust Bowl was caused by unsustainable farming practices that depleted topsoil. It also discusses freshwater resources, pollution sources like industrial chemicals and sewage, and ways to protect water quality. Finally, it covers atmospheric resources and air pollution like smog, acid rain, and greenhouse gases, noting some regulatory efforts that have led to improved air quality over time.
It includes:
1. what is a resource?
2. its types.
3. why do we need to conserve resources?
4. ways to conserve resources?
5. what is water resources?
6. Where and in what forms is water available on Earth?
7. How Can Human Actions Seriously Affect Water Resources?
8. How can the growing demand for water be met?
9. How could water resources be developed sustainably?
10. Conclusions On Water Resources
The document discusses natural resources and forests. It defines natural resources and classifies them as renewable and non-renewable. Forests are an important renewable resource that provide commercial products as well as ecological services like producing oxygen, regulating climate and hydrological cycles, and providing habitat. The major causes of deforestation include shifting cultivation, industrial use of wood, development projects, increasing food needs, and overgrazing.
The document discusses natural resources and forests. It defines natural resources and classifies them as renewable and non-renewable. Forests are an important renewable resource that provide commercial products as well as ecological services like producing oxygen, regulating climate and hydrological cycles, and providing habitat. The major causes of deforestation include shifting cultivation, industrial use of wood, development projects, increasing food needs, and overgrazing.
Leveraging Generative AI to Drive Nonprofit InnovationTechSoup
In this webinar, participants learned how to utilize Generative AI to streamline operations and elevate member engagement. Amazon Web Service experts provided a customer specific use cases and dived into low/no-code tools that are quick and easy to deploy through Amazon Web Service (AWS.)
Main Java[All of the Base Concepts}.docxadhitya5119
This is part 1 of my Java Learning Journey. This Contains Custom methods, classes, constructors, packages, multithreading , try- catch block, finally block and more.
Beyond Degrees - Empowering the Workforce in the Context of Skills-First.pptxEduSkills OECD
Iván Bornacelly, Policy Analyst at the OECD Centre for Skills, OECD, presents at the webinar 'Tackling job market gaps with a skills-first approach' on 12 June 2024
How to Make a Field Mandatory in Odoo 17Celine George
In Odoo, making a field required can be done through both Python code and XML views. When you set the required attribute to True in Python code, it makes the field required across all views where it's used. Conversely, when you set the required attribute in XML views, it makes the field required only in the context of that particular view.
2. This PPT should be used as reference only. Reading books (mentioned
in syllabus) is mandatory for the preparation of the examinations.
Resources
What are resources?
A resource is a source or supply from which a
benefit is produced and that has some utility.
Example: Land, Minerals Soil, Water, Energy,
Food etc.
Types of resources:
Natural resources
Man-made resources
Human resources
3. This PPT should be used as reference only. Reading books (mentioned
in syllabus) is mandatory for the preparation of the examinations.
Natural Resources
What are natural resources?
The natural resources may be defined as any
material given to us by nature which can be
transformed in a way that it becomes more
valuable and useful.
Types of natural resources:
Non-renewable resources
Renewable resources
4. This PPT should be used as reference only. Reading books (mentioned
in syllabus) is mandatory for the preparation of the examinations.
Renewable and Non-renewable
Resources
What are renewable resources?
The resources which are
renewed or replenishedfast
or have unlimited source.
Example: Water, air,
biomass, solar energy etc.
What are non-renewable
resources?
The resources which can
not be renewed or
replenished.
Example: Fossil fuels,
Nuclear power, Minerals
etc.
5. This PPT should be used as reference only. Reading books (mentioned
in syllabus) is mandatory for the preparation of the examinations.
Some natural resources to be
discussed
Land Resource Forest Resource
Water Resource Energy Resource
7. This PPT should be used as reference only. Reading books (mentioned
in syllabus) is mandatory for the preparation of the examinations.
Land as a resource
The study of soils in their natural environment is called “pedology”.
Land is a renewable but limited resource
Problems related to land resource
Reaching the carrying capacity
Population density
Improper land-use planning
Saltwater intrusion
Land degradation
Soil erosion
8. This PPT should be used as reference only. Reading books (mentioned
in syllabus) is mandatory for the preparation of the examinations.
Land Degradation
Causes
Natural causes
Heavy rainfall
High speed winds
Natural disasters: earthquake, landslide, flood, draught
Expansion of desert
Anthropogenic causes
Mining
Urbanization
Deforestation
Overgrazing
Water logging
Constructionof dams
Extensive use of fertilizers
Dumping of industrial and municipal wastes
9. This PPT should be used as reference only. Reading books (mentioned
in syllabus) is mandatory for the preparation of the examinations.
Soil
Soil is a dynamic natural body capable of supporting a
vegetative cover. It is composed largely of weathered
rocks, water, oxygen and organic materials.
Soil formation
Processes
Physical weathering
Chemical weathering
Biological weathering
Factors
Parent material
Living organisms
Climate
Topography
Time
10. This PPT should be used as reference only. Reading books (mentioned
in syllabus) is mandatory for the preparation of the examinations.
Soil
Soil profile
11. This PPT should be used as reference only. Reading books (mentioned
in syllabus) is mandatory for the preparation of the examinations.
Soil
Functions of soil
Facilitates nutrient cycle
Food and other biomass production
Stores water and regulates water supply
Regulates the emission of trace gases
Filter ground water
Degrades pollutants
Biological habitat
Source of clay
Platform for man-made structures: buildings,
highways
12. This PPT should be used as reference only. Reading books (mentioned
in syllabus) is mandatory for the preparation of the examinations.
Soil Erosion
Types
Normal erosion or geologic erosion
Accelerated or Anthropogenic erosion
Causes
Climatic agents
Water induced erosion
o Splash erosion
o Sheet erosion
o Rill erosion
o Gully erosion
o Slip erosion
o Stream bank erosion
Wind induced erosion
o Suspension
o Saltation
o Surface creep
Biotic agents
13. This PPT should be used as reference only. Reading books (mentioned
in syllabus) is mandatory for the preparation of the examinations.
Soil Erosion
Effects
Decreased productivity of
land
Desertification of land
Deposition of soil in water
bodies
Reduction of agricultural
land in river banks
14. This PPT should be used as reference only. Reading books (mentioned
in syllabus) is mandatory for the preparation of the examinations.
Soil Erosion
Control
Conservationaltill farming
Stubble mulching
Contour farming
contour bunding
Construction of check
dams
Terracing
Strip cropping
Alley cropping (Agro-
forestry)
Wind breaks
15. This PPT should be used as reference only. Reading books (mentioned
in syllabus) is mandatory for the preparation of the examinations.
Conventional tillage VS Conservation tillage
16. This PPT should be used as reference only. Reading books (mentioned
in syllabus) is mandatory for the preparation of the examinations.
Contour Lines (lines that connect the points with same altitude)
Contour Lines
17. This PPT should be used as reference only. Reading books (mentioned
in syllabus) is mandatory for the preparation of the examinations.
Wind Breaks
18. This PPT should be used as reference only. Reading books (mentioned
in syllabus) is mandatory for the preparation of the examinations.
Desertification
Types
Moderate (10 - 25%)
Severe (25 – 50%)
Very severe (more than 50%)
Causes
Natural causes
Very low rain fall
Excessive evaporation
Vast difference in diurnal temperature
High salinity
Anthropogenic causes
Deforestation
Overgrazing
Conversionof pasture into arable land
Excessive use of fertilizer
19. This PPT should be used as reference only. Reading books (mentioned
in syllabus) is mandatory for the preparation of the examinations.
Desertification
Effects
Rapid soil erosion
Poor soil quality
Unfavorable climate
Low water table, salty and hard water
Endangered human and animal life
Economic and human cost
20. This PPT should be used as reference only. Reading books (mentioned
in syllabus) is mandatory for the preparation of the examinations.
Desertification
Control
Large scale plantation
Sustainable agricultural practices
Development of pasture land and controlling
overgrazing
Development of water catchment
Rainwater harvesting
21. This PPT should be used as reference only. Reading books (mentioned
in syllabus) is mandatory for the preparation of the examinations.
Mining
Mining is the extraction of valuable minerals
or other geological materials from the Earth
Opencast Mining Underground Mining
22. This PPT should be used as reference only. Reading books (mentioned
in syllabus) is mandatory for the preparation of the examinations.
Mining
Effects of Mining
23. This PPT should be used as reference only. Reading books (mentioned
in syllabus) is mandatory for the preparation of the examinations.
Thank You