CBSE Class 10 Geography - 1 || Resources and Development || Full Chapter || By Shiksha House
Summary
TLDRThe video script discusses the concept of resources, their types, and classifications. It highlights biotic and abiotic resources, renewable and non-renewable resources, and the importance of resource planning for sustainable development. The script covers how resources can be owned and categorized by origin, exhaustibility, ownership, and development status. It also addresses land degradation, soil erosion, and the measures needed for land and soil conservation. The importance of resource planning in India, including resource identification, inventory, and equitable distribution, is emphasized for economic growth and sustainability.
Takeaways
- π« Resources are essential for satisfying our needs, including learning resources like schools, teachers, and technology.
- πΏ Resources are classified based on origin (biotic or abiotic), exhaustibility (renewable or non-renewable), ownership (individual, community, national, international), and development status (developed, potential, stock, reserves).
- π± Biotic resources come from living things, while abiotic resources come from non-living things like minerals and metals.
- π Renewable resources can be regenerated, like solar and wind energy, while non-renewable resources, like fossil fuels and minerals, cannot be reproduced once used.
- π Resources can be owned by individuals, communities, countries, or be international, like Antarctica and certain ocean areas.
- π§ Developed resources are fully utilized, while potential resources are known but not yet fully exploited. Stock resources cannot be used due to lack of technology, and reserves are resources set aside for future use.
- π³ Sustainable development involves using resources wisely to ensure availability for future generations, preventing rapid depletion, economic inequality, and environmental issues.
- π The first Earth Summit in Rio de Janeiro in 1992 addressed global environmental protection and sustainable development, leading to Agenda 21 for global cooperation.
- π Resource planning in India includes identifying and inventorying resources, developing technology and skilled personnel, and equitable distribution for sustained economic growth.
- πΎ Soil, a crucial renewable resource, varies across India and includes types like alluvial, black, red and yellow, laterite, arid, and forest soil, each with specific characteristics and uses.
Q & A
What are resources, and what criteria make them useful for satisfying our needs?
-Resources are things available in our environment that can be used to satisfy our needs, provided they are technically feasible, financially viable, and culturally acceptable.
How can resources be classified based on their origin?
-Resources can be classified as biotic, which come from living things like forests, animals, and humans, and abiotic, which come from nonliving things like rocks, minerals, and metals.
What is the difference between renewable and non-renewable resources?
-Renewable resources, like solar and wind energy, can be regenerated once used, whereas non-renewable resources, like fossil fuels and minerals, cannot be reproduced once used and are lost forever.
How are resources classified based on ownership?
-Resources can be individual (owned by a person), community-owned (open to all community members), national (within a country's political boundaries), and international (found in areas not owned by any particular nation).
What are developed resources, and how do they differ from potential resources?
-Developed resources are those where minerals have already been discovered and production is ongoing, whereas potential resources are known to exist but are not yet being fully utilized.
What is the difference between stock and reserves in resource terminology?
-Stock refers to resources that cannot be used due to the unavailability of suitable technology, while reserves are resources not being utilized to their full capacity but can be used in the future.
What is sustainable development, and why is it important?
-Sustainable development is the wise use of resources without damaging the environment to ensure enough resources for future generations. It is important to prevent rapid resource depletion, economic divide, and environmental problems.
What was the significance of the Earth Summit in Rio de Janeiro in 1992?
-The Earth Summit in Rio de Janeiro in 1992 gathered leaders from over 100 countries to address environmental protection and sustainable development, resulting in the Declaration on global climatic change and biological diversity, global forest principles, and Agenda 21 for sustainable development.
Why is resource planning important for economic growth?
-Resource planning is important because the mere presence of resources is not enough for development. It involves identifying, surveying, mapping resources, evolving technology, skilled personnel, and institutions, and ensuring equitable distribution for sustained economic development.
How does land degradation occur, and what steps can be taken for land conservation?
-Land degradation occurs due to natural agents like wind and water erosion and human activities like deforestation, overgrazing, mining, and improper irrigation. Steps for land conservation include afforestation, controlled grazing, stabilizing sand dunes, proper disposal of industrial effluents, and monitoring soil conditions.
Outlines
π Understanding Resources and Their Types
This paragraph explains the concept of resources, defining them as elements that satisfy our needs and are available in our environment. It classifies resources based on their origin (biotic or abiotic), exhaustibility (renewable or non-renewable), ownership (individual, community, national, or international), and development status (developed, potential, or stock). Examples include biotic resources like forests and animals, abiotic resources like minerals, renewable resources like solar energy, and non-renewable resources like fossil fuels.
π Classification and Sustainable Development of Resources
This paragraph further elaborates on the classification of resources, distinguishing between developed resources, potential resources, stock, and reserves. It highlights the importance of sustainable development, where resources are used wisely to ensure future generations have enough. The paragraph discusses the economic and environmental consequences of indiscriminate resource use, the 1992 Earth Summit in Rio de Janeiro, and Agenda 21's goals for global sustainable development.
πΎ Resource Distribution and Planning in India
This paragraph discusses the uneven distribution of resources in India and the importance of resource planning for economic growth. It emphasizes the need for identifying resources, planning with appropriate technology, skilled personnel, and institutions, and ensuring equitable distribution for sustainable development. The paragraph also references India's efforts in resource planning since its first five-year plan after independence.
ποΈ Land Use and Degradation in India
This paragraph categorizes land in India based on its use: forests, net sown area, fallow lands, and uncultivated land. It compares land-use patterns from 1960 to 2009, highlighting changes in forest area, pastures, barren wastelands, and cultivated land. The paragraph also addresses land degradation caused by natural and human activities, emphasizing the need for conservation to prevent further degradation.
ποΈ Factors Contributing to Land Degradation
This paragraph identifies the main factors contributing to land degradation in India, including deforestation, overgrazing, mining activities, over-irrigation, and industrial waste disposal. It mentions specific states affected by these activities and highlights the impact on land and water pollution. The paragraph calls for steps to control land degradation through afforestation, controlled grazing, proper waste disposal, and continuous monitoring.
π± Types and Characteristics of Soil in India
This paragraph categorizes soil types in India based on physical and chemical properties, texture, and color. It describes alluvial soil, black soil, red and yellow soil, laterite soil, arid soil, and forest soil, detailing their characteristics, regions found, and suitability for different crops. The paragraph emphasizes the importance of soil as a renewable resource and the need for soil conservation to prevent erosion.
πΎ Soil Erosion and Conservation Methods
This paragraph explains soil erosion caused by natural agents like wind and water, exacerbated by human activities such as deforestation, overgrazing, and improper farming methods. It describes types of erosion like gully erosion and sheet erosion, and highlights soil conservation methods like terrace farming, strip cropping, planting shelterbelts, and stabilizing sand dunes to reduce the impact of wind and water on soil.
π‘οΈ Strategies for Preventing Soil Erosion
This paragraph discusses the prevention of soil erosion, focusing on methods to reduce the speed of running water and wind. It mentions terrace farming, strip cropping, and planting shelterbelts as effective techniques. The paragraph underscores the importance of conserving soil, a vital natural resource that supports plant and animal life, and the need to adopt sustainable practices to maintain soil health.
Mindmap
Keywords
π‘Resources
π‘Biotic Resources
π‘Abiotic Resources
π‘Renewable Resources
π‘Non-Renewable Resources
π‘Sustainable Development
π‘Resource Planning
π‘Soil Erosion
π‘Alluvial Soil
π‘Land Degradation
Highlights
Resources are things available in our environment that can be used to satisfy our needs, provided they are technically feasible, financially viable, and culturally acceptable.
Resources can be classified based on origin, exhaustibility, ownership, and status of development.
Biotic resources come from living things like forests, animals, and humans, while abiotic resources come from non-living things like rocks and minerals.
Renewable resources, like solar and wind energy, can be regenerated once used, whereas non-renewable resources, like fossil fuels, cannot be reproduced once used.
Resources can be owned individually, by communities, by countries, or be international resources managed by institutions related to the United Nations.
Developed resources are those where minerals have already been discovered and production is ongoing, while potential resources are known but not fully utilized.
Stock resources are those that cannot be used due to the unavailability of suitable technology, whereas reserves are resources that can be used in the future.
Sustainable development ensures that resources are used wisely without damaging the environment, preserving them for future generations.
The first Earth Summit in Rio de Janeiro in 1992 addressed environmental protection and sustainable socio-economic development, resulting in the adoption of Agenda 21.
Resource planning in India involves identifying and inventorying resources, evolving technology, and setting up institutions for resource development plans.
Land resources in India are classified into forests, net sown area, fallow lands, other uncultivated land, and land not available for cultivation.
Land degradation in India is caused by deforestation, overgrazing, mining, over-irrigation, and industrial waste, affecting about 130 million hectares.
Different types of soils in India, like alluvial, black, red and yellow, laterite, arid, and forest soils, support various types of vegetation and agriculture.
Soil erosion, the loss of soil cover due to natural agents, is exacerbated by human activities like deforestation, overgrazing, and improper farming methods.
Soil conservation methods include terrace farming, strip cropping, planting shelterbelts of trees, and proper disposal of industrial effluents.
Transcripts
your school where you can sit and watch
this course
your teacher who can explain it to you
a CD that contains discourse
a computer to run the CD on
electricity supply to run the computer
your own ability to read and write
these are just some of the things that
allow you to go through this course
all these are examples of things that
you use to satisfy your need for
learning
the things available in our environment
that can be used to satisfy our needs
are called
resources provided they are technically
feasible financially viable and
culturally acceptable
resources can be classified based on
their origin exhaust ability ownership
and status of development
resources can be living
or nonliving
all resources that come from living
things like forests land and sea animals
insects and human beings are called
biotic resources resources in the form
of nonliving things like rocks minerals
and metals are called abiotic resources
resources can also be classified based
on whether they can be regenerated or
lost forever once used
resources like solar
and wind energy
reversible chemical reactions
and physical power
which can be regenerated once used are
called
renewable resources
fossil fuels like coal natural oil and
gas cannot be reproduced once used
the same applies to minerals that are
used to extract metals
these are examples of non-renewable
resources since they are lost forever
once used
you
you
the sources can be owned by a person a
group of persons a country or the entire
world
resources like private houses
shops
farms
and plantations
I've owned by individual persons and are
called individual resources
resources like public parks
places of worship
schools
and hospitals
and open to all members of the community
these are examples of community owned
resources
all resources whether biotic or a biotic
individual or community owned ultimately
belong to the country these include all
the resources within the political
boundaries of a country and to 19.2
kilometers into the sea from its coast
there are still some parts of land like
the icy continent Antarctica and the
vast stretches of oceans which are not
owned by any particular nation resources
found in these parts of the world are
called international resources and are
managed by institutions related to the
United Nations
you
resources like mines we're minerals have
already been discovered and traduction
is on to utilize the full capacity are
called developed resources
vast resources of natural gas and oi are
known to exist under the sea near the
Indian coast however not much of these
resistors have been utilized so far
resources that are known to exist but
are not being fully utilized are called
potential resources stock is a type of
resource that cannot be used due to the
unavailability of suitable technology
for example hydrogen is present in the
atmosphere as well as in water fusing
two hydrogen atoms can create
inexhaustible and clean energy
but no suitable technology exists to
achieve this in a practical way
hence we can refer to hydrogen as stock
you
on the other hand reserves are a
resource which is not being utilized to
its full capacity but it can be used at
any time in the future
for example ethanol
ethanol is an alcohol extracted from
sugarcane and can be used as an
alternative motor fuel
resources that can be used today but are
preserved to meet future requirements
are called reserves
let's quickly look at the classification
of resources based on their origin
exhaust ability ownership and status of
development consider an example but all
local people have equal access to forest
resources
they use the resources wisely without
damaging the environment and make sure
that their future generations also have
enough resources available to them
this is called sustainable development
what will happen if individuals start
using resources indiscriminately to make
a quick profit
this would lead to a rapid depletion of
resources
this would also create an economic
divide in the society as some persons we
get richer than the others
this would also lead to environmental
problems like pollution and land
degradation and contribute to ecological
problems like global warming
and ozone layer depletion
the growing worldwide concern for
sustainable development resulted in the
first Earth Summit in Rio de Janeiro in
Brazil in June 1992
at Rio de Janeiro leaders from over
hundred countries gathered to address
the problems of environmental protection
and sustainable socio-economic
development
leaders signed the Declaration on global
climatic change and biological diversity
and approved the global forest
principles
a trio the leaders also adopted agenda
21 which is a declaration to achieve
global sustainable development in the
21st century
agenda21 aims to prevent environmental
damage and fight poverty and diseases
through global cooperation
it also aims to encourage local
governments to form their own agenda 21
based on local issues
observe the items in this table
can you imagine where the resources
needed to arrange this simple breakfast
came from
the wheat used to make the flour for the
bread might have come from Punjab or
Madhya Pradesh
the bread itself might have been baked
in a factory in your city
the butter and the milk used to make it
might have come from a city in Gujarat
the delicious jam and the fruits used to
prepare it might have come from an
orchard in Himachal Pradesh
the tea might have come from Assam West
Bengal Kerala Tamil Nadu
even the steel used to make your plate
might have come from the iron ore mined
in Jharkhand or chattisgarh
the resources in our country are not
distributed uniformly across all its
regions
for example some states and India are
rich in food grains while others are
rich in minerals
the mere presence of resources is not
enough for the development of the region
in India Mata Pradesh is rich in
minerals but lacks communication and
transport facilities
so what else do you think is required
for economic growth
besides the availability of resources
this is where resource planning comes in
it involves the identification and
inventory of resources
planning with the appropriate technology
skilled Human Resources setting up of
suitable institutions for the
implementation of resource development
plans and equitable distribution of
available resources for sustained
economic development
matching these with national development
plans
India started with its resource planning
efforts with the first five-year plan
launched after independence
what are the different activities
involved in resource planning in India
resource planning involves identifying
and estimating the resources available
by surveying and mapping
resource planning involves evolving
technology skilled personnel and
institutions to implement resource
development plans
the sauce planning also involves
continuously monitoring and guiding
resource development plans to match the
overall national development goals
the availability of resources is limited
irresponsible and overuse of resources
can lead to several social economic and
environmental problems
this is the reason why we must plan for
the future and start conserving our
resources at own levels
whether it is water or oil a drop saved
today is a job available for tomorrow
India is the seventh largest country in
the world with the geographical area of
about three point two eight million
square kilometers this land is a
valuable resource that supports our
population
buildings
farmlands
and forests
and also provides us with rich mineral
water
and soiled resources
India has widely different geographical
features
from lofty mountains in the not
to vast plains and plateaus in the
central region
from deserts in the West to dense
forests in the east
and islands in the south
besides a long coastline
the mountains allow perineal flow of
rivers like the Ganges
the Brahmaputra
and the Indus
be enhanced tourism and ecological
prospects to
a plateau is an elevated comparatively
level expanse of land
plateaus are rich reserves of minerals
fossil fuels and forests
land in India can be divided into three
main relief features
around 30% of our land is occupied by
mountains
43% of it is plane
and 27% is in the form of Plateau
depending on their use our land
resources can be classified as forests
net zone area or total area under
cultivation fallow lands other
uncultivated land and land not available
for cultivation
Salo land can be further divided into
current fallow
which is land not cultivated for one or
less than one year
and other than current fellow
which is land that has remained
uncultivated for one to five years
uncultivated land other than fallow land
is divided into permanent pastures land
under miscellaneous tree crops and land
left uncultivated for more than five
years
this other than current fallow land is
either of poor quality or cost too high
to cultivate
hence sometimes it is cultivated once in
two or three years
land not available for cultivation is
either barren wasteland
like the salty plains of the run of cut
all land used for non agricultural
purposes like building houses
votes
and factories
your two pie charts that show the
land-use pattern in India in 1962 61 and
2008 to 2009
let us compare the data and see how the
land-use pattern has changed from 1960
to 2009 in India
observe but there is no major change in
the Nets own area during the period
note that the area under forests
increased marginally from 1960 to 2009
but it is still way below the required
33% as planned in the national forest
policy formulated in 1952
you
permanent pastures and grazing grounds
decreased during the period
this is not a good sign for thousands of
people engaged in cattle drink
the percentage of barren wasteland
decreased by almost half during the
given period
however this reclaimed land is used
mainly for non agricultural purposes
current fallow and other than current
fallow land also increased during this
period
however
if these lands are included in the Nets
own area since these lands are
cultivated once or twice in two or three
years
the percentage of Nets own area goes up
to 54%
continues and indiscriminate use of land
resources without taking appropriate
measures results in conversion of
cultivable land into barren wasteland
and exploitation of our land resources
this is called land degradation
we have about 130 million hectares of
degraded land in India
to give you a sense of the size it is
roughly equal to one third of the total
area of our country
out of this 56 percent is water eroded
area 10% is wind eroded
28% is forest degraded area and 6% has
saline and alkaline deposits
natural agents like wind and water
constantly keep eroding and degrading
land
however human activity has contributed
to and increased the pace of this
natural land degradation
here are the main factors contributing
to land degradation in India
deforestation removes the green cover
required to protect land from soil
erosion by wind and water
and thus contributes to land degradation
in some parts of India over grazing by
cattle has converted permanent pastures
into barren land leading to land
degradation
examples are the states of Maharashtra
mati Pradesh Gujarat
and Rajasthan
indiscriminate deforestation and
excavation done as part of mining
activity and quarrying also causes land
degradation
jerk and shut this girl
Arisa
and Madhya Pradesh have suffered
deforestation due to mining
you
over irrigation of cultivated land in
some parts of India leads to water
logging
this increases the saline and alkaline
levels in the soil leading to land
degradation
you find this in Punjab Haryana and
western Uttar Pradesh
disposal of solid and liquid waste by
industries on surrounding land or water
bodies has also become a major cause of
land degradation and water pollution
Industrial activities like grinding of
limestone calcite
and soapstone
which release dust
retards water infiltration into the soil
this brings us to the question
what steps can be taken to control the
problem of land degradation
the solution lies in taking steps for
land conservation
some steps for land conservation are a
forestation
controlled grazing and mining activity
stabilization of sand dunes by growing
Tonie bushes proper disposal of
industrial effluents after treatment and
continuous monitoring of soil conditions
soil is formed over millions of years by
weathering of rocks and minerals and
also by natural agents like variation in
temperature climate
wind leashes and running water
the important factors that influence
Sony formation are relief parent rock
vegetation and other life-forms and most
important of all time
chemical and organic changes also take
place in the soil
SOI is a natural abiotic renewable
resource
it contains inorganic and organic matter
such as humors
soil is an essential resource
a majority of plant and animal life on
the earth
the layer of soy may be a few
centimeters to several meters thick in
different regions
usually when we see soil we refer to the
thin layer of the topsoil or the fine
upper layer of soil in a region
based on their physical and chemical
properties
texture and color
soit's in india can be classified as
alluvial
black site
red and yellow soil
letter right
edit
and forest soil
let us learn more about each of these
types of soils
the northern plains of India a meet of
fertile alluvial soils which extend to
Gujarat and Rajasthan through a narrow
corridor formed by the Indus the Ganga
and the Primeau Putra river systems
alluvial soils are also found in the
eastern coastal plains
and Delta's of the godavari the Mahanadi
the krishna and the cavity
alluvial soil is a mixture of sand
silt
and Klee
the new alluvial soils called cutter
found in the Gangetic Plains had small
particles and a fine texture
the old alluvial soils called Bunga
found near the river valleys are coarser
and contain more pieces of rocks called
conker
in other words cupboard is more fertile
than the Bunga
the fertile alluvial soils are rich in
potassium
phosphoric acid and lime
and an ideal for growing sugar cane
wait
vice
pulses
and cereal crops
due to the richness of soil the regions
of alluvial soils are densely populated
and the level of cultivation is high
black soy also called Recor is found in
the Deccan Plateau spread over
Maharashtra
Saurashtra
Marva
mata Pradesh
and chappies get
black soil is formed by the climatic
conditions and weathering of volcanic
rocks found in this region
SOI is rich in calcium carbonate
magnesium
and lime
it also has good water retention
properties due to the fine clay
particles
however it is poor in phosphorus which
is a very important nutrient in soil
this type of soy has to be immediately
tilled after the first shot of monsoon
to prevent it from getting sticky
it is ideally suited for the cultivation
of cotton and is also called black
cotton soil
you
Vette and yellow soils are found in
southern and eastern parts of Deccan
Plateau
southern genetic claims along the
western cards and some parts of Orissa
and Chiapas go
the red color is due to the presence of
mine in the rocks from which the soil
was formed
and appears yellow when wet
the high iron content makes this type of
soil good for cultivating various types
of drams
groundnuts
and Casta seeds
you
you
laterite soils are found in kerala
good Nautica
Multi pradesh
Tamilnadu
and parts of Orissa and Assam
all these areas experience high
temperature and heavy rainfall
the soil develops by leaching due to
heavy rains
laterite soy is low in organic
components
can be meat cultivable with the use of
adequate fertilizers and menus
it is good for cultivation of tea
coffee
and cashew nuts
you
Everitt means dry true to its name arid
soil is found in western Rajasthan
and parts of Kutch region in Gujarat
that received very little rainfall
it is reddish-brown in color and has a
sandy texture
due to high temperatures and dry climate
arid soy is low in moisture and organic
content and has high salt content
the salt content is so high that common
salt is obtained by mere evaporation of
the water
forest soils are found in the
mountainous regions of the Himalayas
from Kashmir
to Arunachal Pradesh
most of these regions experience a cool
climate with abundant rain and snowfall
the texture of forest soils varies from
coarse-grained on mountain slopes to
lomi in river valleys
for the soy in snow-covered areas is
often acidic with low humors content
however wheat
rice
sugar cane
and always seats
a cultivated in forest soils of many
parts in Jammu and Kashmir
and Arunachal Pradesh
SOI is an essential natural resource
that supports a majority of plant and
animal life on the earth
it is a renewable resource
however it takes hundreds and thousands
of years for a thin layer of soy to form
without vegetation cover the soil that
takes hundreds of years to form can be
washed away in a few hours of heavy rain
the loss of soil cover due to natural
agents like wind and running water is
called soy erosion
some human activities have increased the
rate of soil erosion by natural agents
like wind and running water
what human activities do you think are
responsible for soil erosion
the roots of plants and trees keep the
soil moist and hold the soil particles
together
humans destroy vegetation cover by
deforestation overgrazing construction
and mining activities
without vegetation cover soil becomes
dry and loose and gets easily eroded
defective farming methods like plowing
up and down the slope increase the speed
of water flowing down the slope
this increases the rate of soil erosion
running water cards deep channels
through clay soils
this is called gully erosion which
converts the land into bad land making
it unsuitable for cultivation
such lands also called ravines are
prominent in the tumble basin
when flowing water washes away the
entire sheet of topsoil in a region it
is called sheet erosion
winter erosion occurs generally in areas
of little or no vegetation
it happens in places let receive scanty
rainfall
for example the formation of sand dunes
in the deserts
the prevention of soil erosion is called
soil conservation
most methods of soil conservation aim to
reduce the speed of running water and
wind overland to reduce soil erosion
one way to conserve soy in mountainous
regions is Terrace farming
this involves cutting terraces along the
slope
you
other methods of preventing soil erosion
include effective farming techniques
in plane areas strip cropping can be
used for soil conservation
in this method strips of grass are
allowed to stand between crops in large
fields
these strips of grass reduce the force
of wind and thus prevent soil erosion
this technique also prevents soil
nutrients from depleting
planting rose trees along farmland also
helped break the force of wind and help
in soil conservation
such shelterbelts of trees when planted
alone sand dunes help stabilize them and
prevent the desert from extending into
land available for cultivation
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