This document discusses soils of India, including their formation, classification, and conservation. It notes that soil forms over millions of years through rock decomposition and is important for agriculture, plant growth, and animal life. Soils in India are classified based on factors like color, composition, and location. The eight main types described are forest soil, alluvial soil, desert soil, black soil, laterite soil, red/yellow soil, peaty soil, and saline soil. The document also covers soil horizons, degradation through erosion, and techniques for conservation like afforestation, terracing, and contour ploughing.
NAME : MANZOOR NABI
COURSE : B.SC (FORESTRY)
(Semester- v)
Year:-2015-16
student at mewar university Rajasthan, India
TOPIC: SHIFTING CULTIVATION
SUB : AGROFORESTRY
CONTACT ME.........
E-mail:- manzoornabi57@gmail.com
NAME : MANZOOR NABI
COURSE : B.SC (FORESTRY)
(Semester- v)
Year:-2015-16
student at mewar university Rajasthan, India
TOPIC: SHIFTING CULTIVATION
SUB : AGROFORESTRY
CONTACT ME.........
E-mail:- manzoornabi57@gmail.com
India exhibits a great variation in topography, landscape, climate, soil types, geology, vegetation and demographic character from one part of the country to another. Indian climate vary from place to place due to variation in altitude, temperature, rainfall and other parameters. This module highlights the geoecological regions of India with their characteristics.
Wastelands refer to degraded lands that are currently underutilized, and are deteriorating for lack of appropriate soil & water management or on account of natural causes.
Wastelands develop naturally or due to influence of environment, chemical and physical properties of the soil or management constraints.
The classification scheme adopted for monitoring of wasteland on 1:50,000 scale.
On the other hand, the Wasteland Development Board and some other institutions have considered all those categories of land as wastelands which are not under the use of forest pasture and cultivation.
From the utilization point of view, wastelands are classified as forest wasteland and non-forest wasteland, cultivated wasteland and non-cultivated wasteland .
In the wasteland classification scheme followed by Department of Land Resources, Ministry of Rural Development and National Remote Sensing Centre, Indian Space Research Organization, Department of Space, Govt. of India during 2003 for Wastelands Atlas of India 2005, 28 categories of wastelands were identified which have been now brought down to 23 categories in the wasteland classification scheme followed in 2006 for the preparation of Wastelands Atlas of India 2010.
Following thirteen categories of lands were classified under wastelands in India.
Gullied and/or ravenous land
Upland with or without scrub.
Water logged and marshy land.
Land affected by salinity/alkalinity-coastal /inland.
Shifting cultivation area.
Underutilized /degraded notified forest land.
Degraded pastures/grazing land.
Sands-deserted/coastal
Mining-industrial wastelands.
Barren rocky/stony waste/ sheet rocky area.
Steep sloping areas.
Snow covered land/or glacial area.
Degraded land under plantation crops
A soil is composed primarily of minerals which are produced from parent material that is weathered or broken into small pieces. Like the classification systems for plants and animals, the soil classification system contains several levels of details, from the most general to the most specific types. The most general level of classification system is the soil order, of which there are 12 major types. This module explains these classes.
India exhibits a great variation in topography, landscape, climate, soil types, geology, vegetation and demographic character from one part of the country to another. Indian climate vary from place to place due to variation in altitude, temperature, rainfall and other parameters. This module highlights the geoecological regions of India with their characteristics.
Wastelands refer to degraded lands that are currently underutilized, and are deteriorating for lack of appropriate soil & water management or on account of natural causes.
Wastelands develop naturally or due to influence of environment, chemical and physical properties of the soil or management constraints.
The classification scheme adopted for monitoring of wasteland on 1:50,000 scale.
On the other hand, the Wasteland Development Board and some other institutions have considered all those categories of land as wastelands which are not under the use of forest pasture and cultivation.
From the utilization point of view, wastelands are classified as forest wasteland and non-forest wasteland, cultivated wasteland and non-cultivated wasteland .
In the wasteland classification scheme followed by Department of Land Resources, Ministry of Rural Development and National Remote Sensing Centre, Indian Space Research Organization, Department of Space, Govt. of India during 2003 for Wastelands Atlas of India 2005, 28 categories of wastelands were identified which have been now brought down to 23 categories in the wasteland classification scheme followed in 2006 for the preparation of Wastelands Atlas of India 2010.
Following thirteen categories of lands were classified under wastelands in India.
Gullied and/or ravenous land
Upland with or without scrub.
Water logged and marshy land.
Land affected by salinity/alkalinity-coastal /inland.
Shifting cultivation area.
Underutilized /degraded notified forest land.
Degraded pastures/grazing land.
Sands-deserted/coastal
Mining-industrial wastelands.
Barren rocky/stony waste/ sheet rocky area.
Steep sloping areas.
Snow covered land/or glacial area.
Degraded land under plantation crops
A soil is composed primarily of minerals which are produced from parent material that is weathered or broken into small pieces. Like the classification systems for plants and animals, the soil classification system contains several levels of details, from the most general to the most specific types. The most general level of classification system is the soil order, of which there are 12 major types. This module explains these classes.
Soil has evolved over millions of years and is an important natural resource.
Soils in India can be classified as - Alluvial, Black, Red and Laterite soils. Their distribution, composition, characteristics such as color, texture, minerals, crops grown and it's conservation have been described.
this presentation focuses on the different types of land and soils found in India along with attractive images and graphs and has a short questionnaire at the end.
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Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
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2. INTRODUCTION
• Soil is the loose material which
forms the thin surface of Earth.
• It is formed by decomposition of
organic matter and breaking up of
rocks by different agents like
water, wind, glacier etc.
• The organic matter formed by
decomposition of plants and
animals is called humus.
• Soil does not forms in a year but
takes million of years for its
formation.
3. Importance of Soil
• 1. it forms the basis for growth of
crop. All agricultural production is
dependent on the quality of soil.
Example: Ganga plain is best
suitable for growth of crops.
• 2. Soil support animal life and
various animals like earthworms,
rats live in soil.
• 3. It forms the basis for the growth
of various plants consisting of fruits
and vegetables which are necessary
for survival of human life.
4. Factors of Soil formation
• 1. Parent Material: the material
like rocks, organic matter is
called parent material. Rocks are
converted into fine sediments
made by weathering caused by
different agents like water , wind
etc.
• 2. Relief: The uneven nature of
earth surface called relief. Steep
slope allows water to move fastly
thus does not help in soil
formation. Gentle slope allow
deposition of sediments brought
by rivers and help in formation of
soil.
5. • 3. Natural Vegetation: it refers to growth of
plants in an area . Plants bind the soil particles
together and provided leaf material which
acts as a humus for soil. So areas which have
high natural vegetation have good soil.
6. SOIL HORIZON
• Studying the soil vertically is
called Soil Horizon.
• It is divided into three parts:
• Horizon A: it is the topmost
zone. In this minerals,
nutrients, organic matter is
present .
• Horizon B: It is the
transition between horizon
A and C
• Horizon C: It consist of loose
material . It forms the first
layer of soil formation.
7. Classification of Soils
• 1. In ancient times, Soil was classified into 2 Urvara(Fertile
soils) and Usara( Infertile soils).
• 2. United States Department of Agriculture
(USDA) has divided into Inceptisols, Entisols, Alfisols.
• 3 . On the basis of colour, composition, characteristic and
location, Indian Council of Agricultural Research (ICAR):
• 1 .Forest Soils
• 2. Alluvial Soil
• 3. Desert Soils
• 4. Black Soils
• 5. Laterite Soil
• 6. Saline Soils
• 7. Red and Yellow Soils
• 8. Peaty Soils
8. 1.Forest Soil
• This soil are found in
areas with sufficient
rainfall and thick
forest growth.
• They are loamy on
valley sides have
quality of humus.
• In Snow bound areas,
soil is acidic and have
low humus
• They are found in
states like Jammu and
Kashmir, Uttrakhand,
Himachal Pradesh,
Arunachal Pradesh.
9. 2. Alluvial Soil
• These are soil formed by
depositional work of rivers.
Example: Ganga Plain is formed
by deposition of alluvium
brought by river.
• They are rich in potassium and
humus but lack phosphorus and
nitrogen.
• The colour of soil varies from
light grey to ash grey.
• They are the most fertile soil and
they can be used for the growth
of crops like wheat,rice etc.
• They are found in areas like Indo-
Gagnetic plains covering states of
Punjab , Haryana,Uttar Pradesh,
Bihar, deltaic region of Mahanadi,
Godavari, Krishna and Cauveri.
10.
11. 3.Desert Soil
• This soil is found in areas of high
temperature and low rainfall. It is
because of these conditions, the
salt get deposited on the top layer
of soil.
• The soil lack nitrogen and humus
as it lack vegetation cover and thus
is not suitable for agriculture.
• The colour of the soil varies from
red to light brown.
• in this type of soil, kankars are also
present
• This soil is found in states like
Rajasthan, parts of South-West
Punjab.
12. 4.Black Soil or
Regur Soil
• 1.They are formed by solidification of
lava in Deccan Plateau and therefore
rich in minerals.
• 2.They are clayey in nature,
• 3.They have capability of storing
moisture for a long time.
• 4.During rainy season, it becomes sticky
and it becomes difficult to plough.
During Summer season, moisture gets
evaporated and deep cracks appear on
the soil.
• 5.They contain Iron, Aluminum, Potash
but lack nitrogen, phosphorus and
organic matter.
• 6.They are suitable for the growth of
cotton.
• 7.They are found in states like
Maharashtra, Karnataka, Madhya
Pradesh and Andhra Pradesh.
13. 5.Laterite Soil
• These soils are formed by the
process of leaching.
• Leaching is the process by which
soil is being removed due to high
temperature and high rainfall.
• Due to high rainfall, lime and silica
are removed from soil and it is left
with iron oxide and potash.
• The soil lacks organic matter,
nitrogen and calcium.
• The soil becomes hard like brick
when dries up and thus is not
suitable for agriculture.
• This is found in states like coastal
areas of Karnataka, Kerela ,Tamil
Nadu and Assam.
14. 6.Red and Yellow
Soil
• They are formed due to weathering
of metamorphic rocks.
• They are red in colour due to high
iron content in them.
• These soils are rich in potash, iron
but lack lime, phosphate, nitrogen
etc.
• With the application of fertilizers,
they are suitable for the growth of
wheat and rice.
• They are found in states like parts
of Maharashtra, Karnataka,
Chhattisgarh, Odisha, Jharkhand
etc.
15. 7. Peaty Soils
• They are found in areas of
high rainfall and high
humidity.
• They are formed due to high
vegetation growth in that
area.
• These soils are rich in humus
and organic content.
• They are brown in colour.
• They are found in states like
UK, coastal areas of West
Bengal, Odhisha, Tamilnadu.
16. Soil Degredation
• It refers to decline in soil fertility and
nutritional status of soil due to various human
factors like deforestation, industalisation ,
urbanisation.
17. Soil Erosion
• It refers to the removal of top
layer of soil by different agents of
weathering like water, wind etc.
• Causes of Soil Erosion:
• 1.Deforestation: Trees bind the
soil particles togeother. Trees are
cut by humans for building
houses, laying roads etc. Cutting
of trees makes soil particle loose
and thus causes soil erosion.
18. • 2. Faulty methods of Agriculture: wrong methods of
agriculture like ploughing, not using crop rotation
technique, shifting cultivation(crops grown on one
land, burnt and then moved on another).
• .
19. • 3.Overgrazing: Due to overgrazing, soil
becomes weak and loose. It is easily carried by
the wind or water and thus causes Soil Erosion
20. Types of Soil Erosion
• 1.Sheet Erosion: when due to heavy
rainfall, the topmost fertile layer is
removed by water, it is called Sheet
Erosion.
• 2. Gully Erosion: On Steep slopes
and areas with lack of vegetation
cover, deep valleys are cut are called
Gullies. Gully cut agricultural land and
make it unfit for cultivation.
• 3. Desertification: Large Scale Erosion
in dry areas due to intensive
cultivation, overgrazing and
deforestation has led to decrease in
the quality called as Desertification.
21. Soil Conservation
• Soil is a natural and national
resource.
• Its fertility will give good
agricultural production.
• Soil takes million of year for its
formation. Therefore Soil needs
to be conserved.
• Soil Conservation refers to
application of techniques which
help in conservation of soil.
22. Techniques for Soil Conservation
• 1. Afforestation: It refers to the growing of
trees in an area as trees bind the soil particles
together and prevent in soil erosion.
23. • 2. Making Dams and barriers: Many rivers
causes soil erosion due to heavy rainfall.
Therefore there flow can be regulated by
building barriers or dams in the middle so that
there speed is decreased.
24. • 3.Keep a check on Overgrazing: Separate grazing
grounds can be made and animals should be sent
there after timings.
• 4. Crop Rotation should be applied. In this the
crops should be grown in rotation as they help in
maintaining the soil fertility.
• .
25.
26. • 5. Terrace farming can be done in the hilly
areas. Small steps can be made in
mountainous areas which will help in reducing
the water speed and thus help in reducing soil
erosion.
27. • 6.Shelter Belts: in this technique, trees are
planted in the direction of winds. It is done so
that wind does not cause erosion and their
speed reduces
28. • 7. Contour Ploughing: It is practice of
ploughing along the contours of steep slope in
mountains. With the help of this technique,
surface run off and soil erosion can be
decreased.