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How is this changed by food production

Around the world about 5 million hectares of forest is converted for agricultural use every year

there is a strong link between deforestation and poverty

seeds are thrown into the warm ashes and in this way a forest has been converted into a farm

this can impact on the ability of the soil to hold water and can pollute water ways and coast

and insects also pollute the air, soil and water and make you native plants and animals

Examples around the world

A example is Madagascar

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How is this affected by Food production

Water pollution from farming

The water that is used on farms eventually flows through soil and rocks

Bare soil that is not protected by plants or there roots can be washed away

Fertilisers such as nitrogen, phosphorus and animal manure can be used to keep the soil healthy

Changing natural water flows

In many places around the world rivers are dammed to make large reservoir which can be used for irrigation

Most water is used for farming

A example of this

Australian Murray river

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soil degradation

this means getting rid of forests to make farms and towns

the soil will break down and wash away

it is estimated that 75 billion tons of fertilized soil has been lost every year

Salinity

salinity is a condition where the amount of salt causes problems in the soil and impacts the environment

it is mainly caused by humans

it kills up to 2 million hectares virtually killing all plant life

Examples around the world

A rice field in mu cang chai/vietnam

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how is this affected by food production

desertification is affecting millions of people all around the world

desertification makes all the soil become dry

humans can make this happen by making food and raising livestock

overgrazing happens from animals, cattle, and goats

there are many effects of desertification: sandstorms,crop loss, famine

about 12 million hectares of land is losed every year