Using the Land

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Using the Land
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Using the Land

• land is one of the worlds most important
  resources

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Using the Land

• land is one of the worlds most important
  resources
• it produces food for the worlds 6 billion
  population

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Using the Land

• land is one of the worlds most important
  resources
• it produces food for the worlds 6 billion
  population
• despite this - 40 million die of hunger every
  year

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Using the Land

• land is one of the worlds most important
  resources
• it produces food for the worlds 6 billion
  population
• despite this - 40 million die of hunger every
  year
• 1/3rd of the world eats 2/3rds of the food

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Share of food to eat
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Share of food to eat
Share of population
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Why do people starve?
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Why do people starve?

• Small farms
• As the population increases the farm size gets
  smaller.

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Why do people starve?

• Small farms
• As the population increases the farm size gets
  smaller.
• Each farm can only support the family who work
  on it.

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Why do people starve?

• Small farms
• As the population increases the farm size gets
  smaller.
• Each farm can only support the family who work
  on it.
• There is never any extra money to make
  improvements.

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Why do people starve?

• Small farms
• As the population increases the farm size gets
  smaller.
• Each farm can only support the family who work
  on it.
• There is never any extra money to make
  improvements.

this is called subsistence farming
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Why do people starve?

• Natural disasters
• Floods wash away crops, animals, housing and
  people.
• .

Mozambique - 2000
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Why do people starve?

• Natural disasters
• Floods wash away crops, animals, housing and
  people.
• Cyclones flatten crops, spoiling harvests.

Pakistan/India - 1999
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Why do people starve?

• Natural disasters
• Floods wash away crops, animals, housing and
  people.
• Cyclones flatten crops, spoiling harvests.
• Earthquakes and volcanoes ruin farmland and kill
  too.

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Why do people starve?

• Natural disasters
• Floods wash away crops, animals, housing and
  people.
• Cyclones flatten crops, spoiling harvests.
• Earthquakes and volcanoes ruin farmland and kill
  too.
• Pests and diseases destroy 1/3rd of all food
  grown.

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A plague of locusts
Farmers in southern Madagascar lose nearly all
their cereal crops A devastating combination of
locust plagues and poor rainfall has nearly wiped
out the maize crop this year in southern
Madagascar. Other staple crops, such as cassava
and sweet potato, have also been affected. The
southern area is the poorest part of an island
nation where 75 percent of the people live below
the poverty line. A Special Report issued by an
FAO/World Food Programme assessment mission to
the country in August/September 1997 found that
harvests in the Southern zone had been hardest
hit by a locust plague that started in October
1996, as well as by poor rainfall.
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Why do people starve?

• Poor Health
• unhealthy people feel too weak to work properly.

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Why do people starve?

• Poor Health
• unhealthy people feel too weak to work properly.
• diseases like malaria, cholera, snail fever and
  sleeping sickness kill people - especially the
  young.

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Why do people starve?

• Poor Health
• unhealthy people feel too weak to work properly.
• diseases like malaria, cholera, snail fever and
  sleeping sickness kill people - especially the
  young.
• people become trapped in the vicious cycle of
  disease.

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People are unhealthy
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People are unhealthy
to weak to work
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People are unhealthy
to weak to work
crops grow badly
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People are unhealthy
to weak to work
crops grow badly
do not produce enough to eat
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People are unhealthy
to weak to work
have too little to eat
crops grow badly
do not produce enough to eat
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People are unhealthy
too weak to fight off disease
to weak to work
have too little to eat
crops grow badly
do not produce enough to eat
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People are unhealthy
too weak to fight off disease
Disease Cycle
to weak to work
have too little to eat
crops grow badly
do not produce enough to eat
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Why do people starve?

• Desertification
• when the soil is bare it can be blown away
  making the land unfit for farming.

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Why do people starve?

• Desertification
• when the soil is bare it can be blown away
  making the land unfit for farming.
• drought, deforestation and over population are
  the main causes.

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Why do people starve?

• Desertification
• when the soil is bare it can be blown away
  making the land unfit for farming.
• drought, deforestation and over population are
  the main causes.
• overcropping and overgrazing result from
  increased pressure on the land.

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The Green Revolution

• increased crop yields

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The Green Revolution

• increased crop yields
• reclaiming land for farming

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The Green Revolution

• increased crop yields
• reclaiming land for farming
• reducing soil erosion

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The Green Revolution

• increased crop yields
• reclaiming land for farming
• reducing soil erosion
• better land management

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Increased crop yields

• Scientists developed High Yielding Varieties
  (HYV) of crops.

Yield the quantity of crop produced
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Increased crop yields

• Scientists developed High Yielding Varieties
  (HYV) of crops.
• Increased use of fertilisers (to help growth) and
  pesticides (to control harmful pests) and
  herbicides (to reduce weeds).

Yield the quantity of crop produced
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Increased crop yields

• Scientists developed High Yielding Varieties
  (HYV) of crops.
• Increased use of fertilisers (to help growth) and
  pesticides (to control harmful pests) and
  herbicides (to reduce weeds).
• Training in new farming methods helped farmers to
  grow new crops.

Yield the quantity of crop produced
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Reclaiming land for farming

• irrigating dry areas

irrigation watering
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Reclaiming land for farming

• irrigating dry areas
• terracing hillsides to create flat land on steep
  slopes

irrigation watering
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Reclaiming land for farming

• irrigating dry areas
• terracing hillsides to create flat land on steep
  slopes
• draining marshland

irrigation watering
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Reducing soil erosion

• irrigation from rivers, wells and reservoirs
  helps the crops to grow well - and stops the land
  from being left bare.

afforestation planting trees
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Reducing soil erosion

• irrigation from rivers, wells and reservoirs
  helps the crops to grow well - and stops the land
  from being left bare.
• Use terracing and stone walls to prevent sheet
  erosion by flash floods.

afforestation planting trees
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Reducing soil erosion

• irrigation from rivers, wells and reservoirs
  helps the crops to grow well - and stops the land
  from being left bare.
• Use terracing and stone walls to prevent sheet
  erosion by flash floods.
• Intercropping - grow trees with others crops in
  the shade. Trees help to retain moisture.

afforestation planting trees
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Better land management

• share out the farmland more equally

remembrement - joining up small farms
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Better land management

• share out the farmland more equally
• join up farms which are too small to be
  efficient.

remembrement - joining up small farms