Resources and Development

Chapter 1 · Social Science · Class 10 26 min read

Why This Matters

Look around the room you are sitting in. There is wood in the door. There is iron in the window grille. There is cotton in your shirt. There is plastic in your pen. There is water in your glass. There is even electricity lighting up this page. Every one of these things began as something lying in nature. But none of it was useful on its own.

Think about a lump of iron ore lying in the ground. By itself, it does nothing for you. It became a window only because someone knew how to dig it out, melt it and shape it. That “knowing how” is called technology. And it happened only because there was a society organised enough to make all this effort worth it.

This is the quiet secret of the whole chapter: a “resource” is not just any thing in nature. It is a thing in nature that we have learned to use. Coal was just useless rock until the steam engine made it precious. Uranium was just a heavy stone until we understood the atom. So resources are really a story about us — about our skills, our needs and our choices — as much as a story about the Earth.

And that story comes with a warning. For a long time, people treated nature’s gifts as free and endless. So they used them carelessly. They drained them, kept them in the hands of a few, and damaged the planet along the way. So we must learn to plan our resources and conserve (save) them. That way there is enough for everyone today, and enough for the children who are not yet born. This is one of the most important ideas you will ever study. And this chapter is where it begins.

The Big Idea

A resource is anything in our environment that we can use to meet our needs. But it counts as a resource only if three things are true: we are able to reach and use it (technologically accessible), it is worth the cost (economically feasible), and our society agrees to use it (culturally acceptable). Resources are not free gifts of nature. Human beings turn raw materials into resources by using technology and by setting up the right systems. We can sort every resource in four ways: by origin, by exhaustibility (whether it runs out), by ownership, and by status of development (how far we have started using it). Resources are limited, and they are not spread evenly across the world. So we must use them through careful planning and conservation (saving), so that what we use today does not leave nothing for the future. That last idea has a name: sustainable development.

Let’s Break It Down

What exactly is a resource?

Anything in our environment that we can use to meet our needs is a resource. But it becomes a resource only if three conditions are met. First, it must be technologically accessible — that means we are able to reach it and use it. Second, it must be economically feasible — that means it is worth the cost. Third, it must be culturally acceptable — that means our society agrees to use it.

Here is the key idea. Resources are a result of human activity. We do not just find resources lying ready. Human beings are an important part of resources, because we are the ones who turn raw material into something useful. Three things work together to make this happen. The first is nature, which gives us the raw material. The second is technology, which is the skill and tools to use that material. The third is institutions, which are the rules and organisations that make development happen (for example, a government, a company, or a law). So people use technology to work with nature, and they build institutions to grow their economy faster.

Here is a quick puzzle to test whether you have really got this idea:

Concept check

Sea water has always contained gold in tiny traces. Why is that gold not considered a usable resource today?

Classifying resources — four different ways to sort them

There are so many kinds of resources that geographers sort them in four ways. Here is the most important thing to understand. These four ways are four separate questions about the same resource. A single resource gets a label under each heading at the same time. So one resource is not put into just one box — it gets four labels at once.

The tree diagram in Figure 1.1 below lays out all four bases on one page so you can see them together:

A tree diagram showing resources classified on four bases. By origin: biotic and abiotic. By exhaustibility: renewable and non-renewable. By ownership: individual, community, national and international. By status of development: potential, developed, stock and reserve. Notes explain that the bases overlap and how stock differs from reserve.
Figure 1.1 — A classification tree. At the top sits one box, RESOURCE. Four branches drop from it, one for each way of sorting a resource. By ORIGIN splits into Biotic (from living things, like forests and fish) and Abiotic (from non-living things, like rocks, metals and water). By EXHAUSTIBILITY splits into Renewable (renews over time, like solar, wind and water) and Non-renewable (coal, oil, minerals). By OWNERSHIP lists Individual (a farm, a well), Community (a village pond, a park), National (within the country) and International (the open oceans). By STATUS lists Potential (not yet used), Developed (surveyed and in use), Stock (the material exists but we lack the technology to use it) and Reserve (saved for the future). A blue note below says the four bases overlap, so one resource carries a label under each, and a yellow note explains the easy-to-mix-up pair: a Stock cannot be used yet for lack of technology, while a Reserve can be used now but is being saved.

(a) On the basis of origin — this asks: does the resource come from living things or non-living things? “Biotic” means it comes from living things. “Abiotic” means it comes from non-living things. Here are the two side by side, with examples:

Resources by origin
TypeWhat it meansExamples
Bioticcomes from the living world (plants, animals and other life)human beings, flora and fauna, fisheries, livestock
Abioticcomes from non-living thingsrocks and metals, water, air, minerals

(b) On the basis of exhaustibility — this asks: does the resource run out or not? “Renewable” means it keeps coming back. “Non-renewable” means once it is used up, it is gone. Compare the two in the table below:

Resources by exhaustibility
TypeWhat it meansExamples
Renewablenature makes it again and again, so it keeps coming backsolar and wind energy, water, forests, wildlife
Non-renewabletakes millions of years to form; once used up, it is gone for a very long timeminerals, fossil fuels (coal, petroleum)

Figure 1.2 below makes the difference stick — one type loops back, the other runs out:

A side-by-side contrast of renewable and non-renewable resources. Renewable resources are drawn as a closed loop that keeps going round — they are renewed or reproduced again and again by natural processes; examples are solar and wind energy, water, forests and wildlife. Non-renewable resources are drawn as a one-way bar that runs down from full to empty — once used up they are gone for human time scales because they take millions of years to form; examples are minerals and fossil fuels such as coal and petroleum.
Figure 1.2 — Two panels compare the two kinds of resource. The green panel on the left, Renewable, draws a closed circle with arrows going round and the words keeps coming back inside it. Nature renews these again and again. Examples listed: solar and wind energy, water, forests and wildlife. The red panel on the right, Non-renewable, draws a bar split into a small left part marked left (what remains) and a large part marked used up - gone, with a one-way arrow beneath it labelled once finished, it does not return. These take millions of years to form. Examples listed: minerals and fossil fuels (coal, petroleum). The loop versus the one-way arrow is the whole point: renewable comes back, non-renewable does not.

(c) On the basis of ownership — this asks: who does the resource belong to? The ownership table uses two terms about the sea that you may not have met yet, so here is a quick reminder before you read it:

With that cleared up, here are the four kinds of ownership, from a single person all the way up to the whole world:

Resources by ownership
TypeWho owns itExamples
Individualowned privately by one persona farmer's land, a house, a private well or plantation
Communityopen to all the people of a communityvillage grazing grounds, public parks, ponds, picnic spots
Nationalbelong to the nation; the country has legal powers over themland, water, minerals, the roads and railways, and resources up to 12 nautical miles into the ocean
Internationallooked after by international organisationsthe ocean resources beyond 200 nautical miles of the Exclusive Economic Zone

(d) On the basis of status of development — this asks: how far have we explored the resource and started using it? There are four steps along this path, and the table sorts them out:

Resources by status of development
TypeWhat it meansExample
Potentialfound in a region but not used yetsolar and wind energy in Rajasthan and Gujarat — plenty is there, but it is not fully used yet
Developedchecked for quality and quantity, and now being usedcoalfields and oilfields that are already in production
Stockthe material is there, but we do not yet have the technology to use itthe hydrogen and oxygen in water — a huge source of energy that we cannot yet use as fuel
Reservepart of the developed stock that we CAN use now, but we save it for the futurewater in dams, forests, and a part of known reserves kept aside

Development of resources — and why it went wrong

For a long time, people believed that resources were free gifts of nature. So they used them without any control. This careless attitude caused three big problems:

  • Depletion of resources — that means resources were used up — just to satisfy the greed of a few people.
  • Accumulation of resources in a few hands — that means a small group hoarded most of them. This split society into the “haves” and “have-nots”, that is, the rich and the poor.
  • Indiscriminate exploitation — that means using up resources without any care. This led to big problems for the whole planet, such as global warming, damage to the ozone layer, pollution of the environment, and land degradation (land becoming spoiled and less useful).

But why should one careless habit cause three such different problems? It helps to trace the chain step by step, because each problem grows out of the same root. The root is the belief that resources are free and endless. Once people believe that, they take as much as they like, with no plan. Then think about what must happen next. Many resources, like coal and oil, take millions of years to form. So if we pull them out faster than nature can ever replace them, they are bound to run out — that is depletion. Next, when there is no fair plan, whoever reaches a resource first and grabs the most simply keeps it. The rest get little. So the resource piles up in a few hands, and society splits into the rich “haves” and the poor “have-nots”. And finally, taking too much from nature too fast — clearing forests, burning fuel, dumping waste — pushes nature out of balance, which is what brings on global warming, ozone damage and pollution. So the three problems are not three accidents. They are three outcomes of the very same mistake.

The flow chart in Figure 1.3 below traces that single mistake down to its three results, and shows the cure:

A cause and effect flow chart. It starts with the belief that resources are free and endless gifts of nature. This leads to careless, unplanned use with no control. From there, three arrows branch to three problems: depletion (resources taken out faster than they return, so they run out); accumulation in a few hands (whoever grabs first and most keeps the rest, splitting people into haves and have-nots); and over-exploitation (too much taken from nature too fast, causing global warming, ozone damage, pollution and an ecological crisis). At the bottom, the cure is planning, conservation and fair sharing, so there is enough for everyone today and in the future.
Figure 1.3 — A top-to-bottom cause-and-effect chart. The yellow box at the top is the root belief: resources are free, endless gifts of nature. An arrow leads to a blue box: so they are used carelessly, with no control and no planning. From there three red arrows fan out to three red problem boxes. Box 1, Depletion: taken out faster than it can come back, so resources run out (non-renewables need millions of years). Box 2, In a few hands: whoever grabs first and most keeps the rest, splitting people into haves versus have-nots. Box 3, Over-exploited: too much pulled from nature too fast, causing global warming, ozone damage, pollution and an ecological crisis. A green box at the bottom shows the cure: planning plus conservation plus fair sharing, so there is enough for everyone today and in the future.

If only a few people and a few countries keep draining the world’s resources, the future of the planet is in danger. So we need a fair sharing of resources (the textbook word is equitable distribution). A fair share for everyone is needed for a good quality of life and for peace in the world. This is exactly why resource planning is needed — so that all forms of life can survive in the long run.

Sustainable development and the Rio Earth Summit

Sustainable development means this: development should happen without damaging the environment, and the development we do today should not take away from the needs of future generations. In simple words: meet today’s needs, but do not steal from tomorrow.

In June 1992, more than 100 heads of state (the top leaders of countries) met in Rio de Janeiro, Brazil. This was the first International Earth Summit. They met to deal with two big and urgent problems together: protecting the environment, and helping people develop socially and economically. The leaders signed the Declaration on Global Climatic Change and Biological Diversity. The Rio meeting also supported the global Forest Principles, and it adopted Agenda 21.

Agenda 21 is the declaration that was signed at this Rio meeting (its full name is the United Nations Conference on Environment and Development, or UNCED). Its goal is to bring sustainable development to the whole world. It is a plan to fight three things — damage to the environment, poverty, and disease — by countries working together. This teamwork is built on shared interests, shared needs and shared responsibility. One important aim of Agenda 21 is this: every local government should make its own local Agenda 21.

Before moving on, see if you can sum up the whole idea in a single sentence:

Concept check

In one line, what is the core promise of sustainable development?

Resource planning in India

Resource planning means making a careful plan for the wise use of resources. (The textbook calls this the judicious use of resources.) Planning is the method that almost everyone agrees on. It matters a lot in a country like India, because here resources are not spread evenly. Some regions have a lot of one thing but very little of another:

  • Jharkhand, Chhattisgarh and Madhya Pradesh have plenty of minerals and coal.
  • Arunachal Pradesh has plenty of water, but it lacks infrastructure (things like roads, power supply and buildings).
  • Rajasthan has plenty of solar and wind energy, but it is short of water.
  • The cold desert of Ladakh has a rich cultural heritage, but it lacks water, infrastructure and some important minerals.

Because resources are spread so unevenly, India needs balanced resource planning — and this must be done at every level: national, state, regional and local. Resource planning in India is not simple. It is done in three stages:

The three stages of resource planning in India
StageWhat happens
1. Identification and inventory of resourcesfinding out what resources exist where, by surveying, mapping, and measuring how much there is and how good it is, across all the regions of the country
2. Evolving a planning structuresetting up the right technology, skills and organisations needed to actually carry out the resource development plans
3. Matching with national developmentfitting the resource development plans into the country's overall national development plans

The flow chart in Figure 1.4 below shows these three stages as one feeding into the next:

The three stages of resource planning in India shown as a top-to-bottom flow. Stage 1: identify and take inventory of resources by surveying, mapping and estimating their quantity and quality across regions. An arrow leads down to Stage 2: evolve a planning structure by setting up the right technology, skills and an institutional set-up to carry out the plans. An arrow leads down to Stage 3: match the resource development plans with the overall national development plans. A note warns that resources alone are not enough; they need technology and institutions.
Figure 1.4 — Three numbered stages stacked top to bottom, each linked to the next by a downward arrow. Stage 1, Identification and inventory of resources: survey, map and measure resources across the regions, finding out how much there is (quantity) and how good it is (quality). Stage 2, Evolving a planning structure: put in place the right technology, skills and an institutional set-up to actually carry out the plans. Stage 3, shown in green, Matching with national development: align the resource development plans with the overall national development plans of the country. A red box at the bottom warns that resources alone are not enough; they build development only when paired with the right technology and institutions.

India has been working towards these goals right from the First Five Year Plan, which was started after Independence.

But here is the important point: just having resources is not enough. Resources also need the right technology and the right institutions. Without them, development gets stuck. In fact, many regions in India that are rich in resources are still economically backward (poor). And some regions that are poor in resources are economically developed (well-off). History shows this too. The countries that ruled colonies were attracted by the rich resources of those colonies. But it was their better technology that let them take and use those resources. So resources help in development only when they come together with the right technology and the right institutions.

Conservation of resources

Resources are very important for development. But if we use them carelessly and too much, it causes problems for both society and the environment. So conservation (saving resources) matters at every level. Many great thinkers worried about this:

  • Mahatma Gandhi said it very clearly: “There is enough for everybody’s need and not for any body’s greed.” He blamed two things for the world losing its resources — greedy people, and modern technology that took too much from nature. He wanted “production by the masses” (many ordinary people producing things) instead of mass production (factories making huge amounts).
  • At the world level, a group called the Club of Rome spoke strongly for saving resources in 1968.
  • In 1974, Schumacher brought back Gandhi’s ideas in his book Small is Beautiful.
  • The Brundtland Commission Report, 1987 was a turning point. It gave the world the idea of Sustainable Development, in a book called Our Common Future.
  • And then came the Earth Summit at Rio de Janeiro in 1992.

Land resources and land use

We live on land. We farm on it. We build on it. And we travel across it. So land is one of our most important natural resources. It supports natural vegetation (plants), wildlife, human life, economic activities, transport and communication. But there is a catch: land is limited — we cannot make more of it. (The textbook word is finite.) So land must be used with careful planning.

India has land in different shapes and forms. These shapes of land are called relief features:

India's land by relief feature
ReliefShare of areaWhat it offers
Plainsabout 43%good for farming and industry
Mountainsabout 30%rivers that flow all year, tourism, value for nature
Plateausabout 27%rich stores of minerals, fossil fuels and forests

Land is used in several different ways. Here are the main ones:

  • Forests.
  • Land not available for cultivation — this means land we cannot farm. It includes barren and waste land, and land used for non-farming purposes such as buildings, roads and factories.
  • Other uncultivated land — this includes permanent pastures (grazing grounds), land with scattered tree crops, and culturable waste land. Culturable waste land is land that could be farmed, but has been left unfarmed for more than 5 agricultural years.
  • Fallow lands — this is farmland that is left to rest. Current fallow is land left for one year or less. Other fallow is land left for 1 to 5 years.
  • Net sown area — this is the actual land on which crops are sown and harvested.

Here is a useful pair of terms. Net sown area is the land that is sown at least once. Gross cropped area is the net sown area plus the land that is sown more than once in the same year. (So if a field grows two crops in one year, it is counted twice in the gross cropped area.)

What decides how land is used? Two kinds of factors. The first are physical factors — the shape of the land (topography), the climate, and the soil. The second are human factors — how crowded an area is (population density), the technology people have, and their culture and traditions.

Now some numbers for India. India’s total area is 3.28 million sq km. But we have land-use data for only about 93% of it. This is because most north-eastern states (except Assam) are not fully reported, and the parts of Jammu and Kashmir held by Pakistan and China have not been surveyed. The net sown area is more than 80% in Punjab and Haryana, but it is less than 10% in Arunachal Pradesh, Mizoram, Manipur and the Andaman & Nicobar Islands. Forest cover is still far below the target. The National Forest Policy (1952) wanted 33% of the country’s area to be under forest, to keep nature in balance — but we are still well below that.

Land degradation and conservation

If we keep using land without taking proper care of it, the land slowly gets spoiled. This is called land degradation — it means the land becomes less useful and less fertile. Some human activities have made this damage much faster. These are deforestation (cutting down forests), overgrazing (too many animals eating the grass), mining and quarrying (digging out minerals and stone):

Land degradation across India — cause and place
CauseStates most affected
Cutting forests for mining (it leaves deep scars and waste rock behind)Jharkhand, Chhattisgarh, Madhya Pradesh and Odisha
OvergrazingGujarat, Rajasthan, Madhya Pradesh and Maharashtra
Over-irrigation — too much watering, which leaves water sitting on the land and makes the soil salty (saline and alkaline)Punjab, Haryana and western Uttar Pradesh
Dust from mineral processing (cement and ceramic factories) settling on the landmany regions — the dust stops water from soaking into the soil

Factory waste (called industrial effluents) is also dumped on the land and into water. This has become a big cause of land and water pollution. The good news is that the ways to save the land are practical and doable:

  • Afforestation (planting trees) and managing grazing properly so animals do not eat the grass bare.
  • In dry areas (arid areas): plant shelter belts — these are rows of plants that block the wind. Also control overgrazing, and hold the sand dunes in place by growing thorny bushes on them.
  • In industrial and suburban areas (factory areas and the edges of cities): manage waste lands properly, control mining, and clean factory waste before throwing it away.

Soil — the most important natural resource

Soil is what plants grow in. It is also home to countless tiny living things. So soil is a living system, not just dead dirt. But here is the amazing part: it takes millions of years to make just a few centimetres of soil. Five things work together to form soil: the shape of the land (relief), the parent rock below (the bedrock it forms from), the climate, the plants and other life around, and time. Natural forces do the work of breaking down the rock — these include changes in temperature, running water, wind, glaciers, and tiny living things called decomposers. As the rock breaks down, dead plant and animal matter mixes in. This rich matter is called humus.

If you could slice into the ground and look sideways, you would see soil arranged in layers. The cross-section in Figure 1.5 below shows exactly that:

A soil profile shown as layers from top to bottom: top soil rich in humus where plants grow, subsoil of weathered rock with sand silt and clay, substratum of weathered parent-rock material, and unweathered parent bed rock at the bottom. A note explains soil takes millions of years to form a few centimetres and lists the five factors of formation.
Figure 1.5 — A vertical slice through the ground, from the surface at the top down to solid rock at the bottom, with a downward arrow on the left marked increasing depth. Four layers are stacked. The top layer is Top soil: dark, rich in humus, where plants grow. Below it is Subsoil: weathered rock mixed with sand, silt and clay. Below that is Substratum: weathered parent-rock material. At the bottom is Parent bed rock: unweathered, solid rock. A blue note on the right, How soil forms, explains that rock breaks down slowly into fine particles mixed with rotting plant and animal matter (humus), shaped by five factors (relief, parent rock, climate, vegetation and life, and time), and that a few centimetres takes millions of years. A red note warns: protect the top soil, because it is the thin fertile layer and erosion strips it away first.

But here is the part that should worry you. Soil takes millions of years to build, yet it can be lost in a single rainy season. Why such a huge difference? Think about how soil is made. There is no machine for it. Solid rock has to be broken down into tiny grains, one grain at a time. The breaking happens only when heat and cold crack the rock, or water and wind rub at it, or tiny living things slowly eat into it. This is painfully slow work. A whole human lifetime of this breaking may add only a thin dusting. That is why a few centimetres of soil can take millions of years to form.

Now think about how soil is lost. The top layer is loose and light. It is not glued to the rock below. So one heavy downpour can lift it and carry it off in an afternoon. A strong dry wind can blow it away just as fast. So the two speeds do not match at all: building is slow as rock, but losing is quick as a flood. That mismatch is the whole reason we must protect soil. Once the fertile top layer is gone, nature cannot make a new one in our lifetime — or even our grandchildren’s.

Figure 1.6 below puts the two speeds side by side so the mismatch is clear:

A side-by-side comparison of how slowly soil forms versus how fast it is lost. On the left, making soil: solid rock is broken into tiny grains and mixed with humus, very slowly, by heat and cold, running water, wind, glaciers and tiny life. A long arrow marked very slow shows a few centimetres take millions of years. On the right, losing soil: a single heavy rain or strong wind lifts the loose top soil and carries it away. A short arrow marked fast shows the fertile layer can vanish in one season, and nature cannot rebuild it for centuries.
Figure 1.6 — Two panels set the building speed against the losing speed. The green panel on the left, Making soil, shows a block of solid rock turning into scattered tiny grains plus humus, broken down grain by grain by heat and cold, running water, wind, glaciers and tiny life. A long green arrow marked VERY SLOW carries the message that a few centimetres take millions of years. The red panel on the right, Losing soil, shows short blue strokes of one heavy rain or strong wind hitting a bar of loose top soil, with an arrow leading the soil away marked carried away. A short red arrow marked FAST carries the message that the thin fertile layer can vanish in a single season, and nature cannot rebuild it for centuries. The long slow arrow against the short fast arrow shows the mismatch.

The major soil types of India

India has many different kinds of land, climate and plants. Because of this, it also has many different kinds of soil. This table is the heart of the chapter. For each soil, learn three things: where it is found, why it is the way it is, and what grows in it.

The major soil types of India
SoilWhere foundKey featuresBest for
Alluvialthe entire northern plains (deposited by the Indus, Ganga and Brahmaputra); also Rajasthan–Gujarat corridor, and eastern coastal deltas of the Mahanadi, Godavari, Krishna and Kaverivery fertile; mix of sand, silt and clay; rich in potash, phosphoric acid and lime; old alluvium = Bangar (more kanker nodules), new = Khadar (finer, more fertile)sugarcane, paddy, wheat and other cereals and pulses; intensively cultivated and densely populated
Black (regur)Deccan trap region — Maharashtra, Saurashtra, Malwa, Madhya Pradesh, Chhattisgarh; along the Godavari and Krishna valleysmade of fine clayey material; holds moisture well; rich in calcium carbonate, magnesium, potash and lime; poor in phosphoric content; develops deep cracks in hot weathercotton (also called black cotton soil)
Red and yellowlow-rainfall eastern and southern Deccan plateau; parts of Odisha, Chhattisgarh, southern middle Ganga plain, Western Ghats piedmontdevelops on crystalline igneous rocks; red from iron diffusion; yellow when in a hydrated formvarious crops with treatment
Lateritehigh-rainfall areas with alternate wet and dry seasons — southern states, Western Ghats of Maharashtra, Odisha, parts of West Bengal and the North-Eastfrom heavy leaching; acidic (pH less than 6.0); deficient in plant nutrients; humus-rich under forest, humus-poor under sparse vegetation; prone to erosiontea and coffee (hilly Karnataka, Kerala, Tamil Nadu); cashew (red laterite in Tamil Nadu, Andhra Pradesh, Kerala)
Aridwestern Rajasthan and other dry regionsred to brown; sandy and saline; lacks humus and moisture due to dry climate and fast evaporation; a Kankar layer below restricts water infiltrationcultivable after proper irrigation
Foresthilly and mountainous areas with enough rainforestloamy and silty in valley sides, coarse on upper slopes; acidic with low humus in snow-covered Himalayas; fertile on lower river terraces and alluvial fansvaries with the mountain environment

Soil erosion and conservation

When the top layer of soil gets stripped off and washed away by water or blown away by wind, this is called soil erosion. (The textbook word “denudation” just means this stripping away.) Normally, nature keeps a balance: new soil forms at about the same speed as old soil is lost. But human activities upset this balance — things like cutting forests, overgrazing, construction and mining. Natural forces like wind, glaciers and water also play a part. When erosion happens faster than soil forms, the land loses its fertile top layer.

But why should cutting trees or grazing too many animals make soil wash away faster? The answer is one small word: roots. A living plant is not just the part you see above the ground. Below the surface, its roots spread out and reach down into the top soil. They grip the loose grains and hold them together, like a net stitched through the earth. So when rain falls on land covered by trees and grass, the roots hold the soil in place, and the plants slow the water down so it soaks gently into the ground. Now take the plants away. When forests are cut, or animals eat the grass right down to bare earth, that net of roots is gone. The top soil is left loose and open to the sky. So the very next rain simply runs across the bare surface and sweeps the loose soil downhill — and a strong wind blows it away. That is the whole reason deforestation and overgrazing speed up erosion: they remove the roots that were holding the soil down.

The two slopes in Figure 1.7 below show the difference — same rain, same hill, only the roots are missing on one side:

Two slopes compared side by side. On the left, a slope covered with trees and grass: their roots reach into the top soil and grip it like a net, so rain water soaks in and very little soil is lost. On the right, a bare slope where trees have been cut and grass eaten down to the earth: there are no roots to hold the soil, so rain water rushes down the open surface and carries the loose top soil away.
Figure 1.7 — Two panels show the same rain on the same slope, differing only in the plants. The left panel, Forest / grass cover, draws a slope topped with a dark band of top soil and three green trees whose roots spread down into the soil; blue rain falls from above. The roots grip the top soil like a net, so water soaks in and little soil is lost. The right panel, Bare slope with trees cut and grass eaten, draws the same slope but bare and yellow with no plants; the same red rain falls and a thick red arrow runs straight down the open surface marked soil washed away. With no roots to hold it, water rushes down and strips the soil off. This is why cutting forests and overgrazing make erosion much faster.

Erosion does not always look the same — it comes in a few different forms. Here they are side by side:

Types of soil erosion
TypeHow it happensResult
Gully erosionrunning water cuts deep channels (gullies) through clayey soilthe land can no longer be farmed — it is called bad land; in the Chambal basin these deep channels are called ravines
Sheet erosionwater spreads out like a sheet and flows over a large sloping areathe top soil is washed away evenly, layer by layer
Wind erosionwind blows away loose soil from flat or sloping landfertile soil is lost into the air

Bad farming habits also wash away soil. For example, ploughing up and down a slope makes little channels — and water then rushes down them fast, carrying soil with it. The good news is that each conservation method is designed to fix exactly one of these problems:

Soil conservation methods
MethodHow it worksWhere used
Contour ploughingploughing along the contour lines (across the slope, not up and down) so water flows down more slowlysloping farmland
Terrace cultivationcutting steps (terraces) into a slope so water cannot rush downwell developed in the western and central Himalayas
Strip croppingleaving strips of grass to grow between the crops, so the strips break the force of the windlarge open fields
Shelter beltsplanting rows of trees to block the wind (a windbreak)holding sand dunes in place and stopping the desert spreading in western India

Common Mistakes

⚠️ Common mistake
What students think

Everything in nature — sunlight, rivers, minerals — is automatically a resource.

Why it seems right

In everyday talk, we call anything useful in nature a 'natural resource'. So it feels obvious that all of nature counts.

What actually happens

Something becomes a resource ONLY when all three things are true: we can reach and use it (technologically accessible), it is worth the cost (economically feasible), AND society agrees to use it (culturally acceptable). Gold dissolved in sea water, or ice on a far-off mountain, is not a resource until we can actually use it in a useful and affordable way. Resources come from human activity, not just from nature's stock.

⚠️ Common mistake
What students think

A resource belongs to just one group — it is either biotic, or renewable, or national, and that one label is its 'type'.

Why it seems right

Textbooks list the four bases one after the other. So it feels natural to think a resource picks one box and stays there.

What actually happens

The four bases are FOUR separate questions, all answered at the same time. One forest is biotic (origin), renewable (exhaustibility), AND community or national (ownership) — all at once. Every resource gets a label under each heading.

⚠️ Common mistake
What students think

Stock and reserve mean the same thing — both are resources kept aside for later.

Why it seems right

Both words sound like 'something saved up for the future'. So they feel like the same thing.

What actually happens

The difference is TECHNOLOGY. A STOCK is material we cannot use yet, because we do not have the technology (like the hydrogen in water, which we cannot use as fuel yet). A RESERVE is part of a developed resource that we CAN use right now, but we choose to save it (like water in a dam). So: reserve = ready, but saved. Stock = present, but not usable yet.

⚠️ Common mistake
What students think

Black soil is black because it is full of humus or rotting plant matter, like the dark soil in a garden.

Why it seems right

In a garden, the darkest soil really is the one with the most humus. So the rule 'dark colour means lots of humus' feels true everywhere.

What actually happens

Black (regur) soil gets its colour from its parent rock — the lava of the Deccan trap (basalt) — and from the climate. It does NOT get the colour from humus. What really matters is that it is fine and clayey, and full of minerals like calcium carbonate. And it is good for cotton because it holds moisture well — not because of humus.

Quick Check

Which three conditions must be met before something in the environment counts as a 'resource'?

The oceanic resources beyond 200 nautical miles of the Exclusive Economic Zone are an example of which kind of resource by ownership?

In which of these states is black soil predominantly found?

What is the main cause of land degradation in Punjab?

Practice Problems

Easy

easy

Name three states having black soil, and the crop mainly grown in it.

easy

In which states is terrace cultivation practised, and why is it useful?

Medium

medium

What type of soil is found in the river deltas of the eastern coast? Give three main features of this type of soil.

medium

What steps can be taken to control soil erosion in the hilly areas?

Challenge

challenge

Explain the land-use pattern in India, and why has the land under forest not increased much since 1960-61?

challenge

How have technical and economic development led to more consumption of resources?

Summary

You should now be able to explain:

  • A resource is anything in our environment that we can use to meet our needs — but only if it is technologically accessible, economically feasible and culturally acceptable. Resources come from human activity. They are not free gifts of nature.
  • Resources are sorted on four bases: origin (biotic / abiotic), exhaustibility (renewable / non-renewable), ownership (individual / community / national / international), and status of development (potential / developed / stock / reserve). One resource gets a label under each.
  • Treating resources as free led to three problems: resources being used up, a few people hoarding them, and damage to the planet. The answer is fair sharing, resource planning and conservation.
  • Sustainable development means developing without harming the environment, and without taking from future generations. The Rio Earth Summit (1992) adopted Agenda 21 to work towards this across the world.
  • Resource planning in India has three stages — finding and listing resources, building a planning structure, and matching it with national development. It works only when resources come with the right technology and institutions.
  • Land is a limited resource (plains ~43%, mountains ~30%, plateaus ~27%). It is used for forests, farming, pasture and non-farming purposes. It gets spoiled by land degradation from deforestation, overgrazing, over-irrigation and mining.
  • India’s major soils are alluvial, black (regur), red and yellow, laterite, arid and forest — each with its own region, features and crops.
  • Soil erosion (gully, sheet, wind) is fought with contour ploughing, terrace cultivation, strip cropping and shelter belts.

What’s Next

You now know that resources are limited, and that we must use them wisely. The next chapter, Forest and Wildlife Resources, looks closely at one of the most precious biotic resources — the forests and wildlife of India. You will learn why biodiversity (the variety of living things) is falling, how species are grouped by how much danger they are in, and how efforts like Project Tiger and community forestry are working to protect this living heritage for the future.

Frequently Asked Questions

What is a resource and why is everything in nature not a resource?

A resource is anything in our environment that we can use to meet our needs — but only if it is technologically accessible, economically feasible, and culturally acceptable. Something sitting in nature is not a resource until humans develop the skill and tools to use it. For example, uranium was just a heavy stone until we understood nuclear energy.

What is the difference between renewable and non-renewable resources?

Renewable resources can be replenished naturally over time, like sunlight, wind and forests. Non-renewable resources took millions of years to form and will run out once used up, like coal and petroleum. This is why non-renewable resources must be used carefully and conserved.

Why is resource planning important in India?

India has resources spread very unevenly — some states are mineral-rich while others have very little. Without planning, rich regions get exploited while poor regions stay behind, and future generations may be left with nothing. Resource planning makes sure resources are used wisely and shared fairly across the country.

What is sustainable development and what is Agenda 21?

Sustainable development means using resources to meet today's needs without destroying the ability of future generations to meet their own needs. Agenda 21 is the declaration made at the 1992 Rio Earth Summit where countries agreed to work towards sustainable development by reducing wasteful consumption and protecting the environment.

What are the major types of soil found in India and where are they found?

The major soil types are alluvial soil (found in river plains of North India — most fertile and widely spread), black soil (Deccan plateau, good for cotton), laterite soil (heavy rainfall areas like Kerala and Karnataka), arid soil (Rajasthan desert), and forest soil (mountain slopes). Each soil type forms because of the local climate and rock type beneath.