Changes to Vegetation, Soil and Water as a Result of Human Activity

What is deforestation?

May of the worlds forest have been cleared for crop growing, grazing, herding, and for timber.

What is there a strong link to deforestation?

What are the types of farm animals that small-scale farmers raise

What happens to the farmers and animals after soil fertility declines?

Farmers make many changes to the natural environment in order to ___________

Forests are cut down, burnt and replaced with a single plant species; wetlands and swamps are drained; and vast areas of native grasses are replaced with crops such as wheat and rice.

What is soil degradation?

Soils are being degraded to such an extent that the amount of food that can be grown is in decline.

What 2 alterations have humans done to biomes?

What 2 alterations have humans done to biomes

Industrialisation has caused greater demands on environments to provide fibres, fuel and raw material

Civilisation have only developed when there is enough food to support them and the physical climates are suitable

Indigenous people lived in harmony with nature. As society became more sophisticated, the relationship with nature changed. Why is this?

Over _____ of the worlds land area that is considered habitable has now been converted into ________ or _________ to provide F_____, fibre _______ and fuel to world's people

What are the negative affects of farming?

Which type of land use increased the most? Why do you think this is?

What is the most common land use that replaces grasslands around the world?

Which three regions have converted the most grassland (source 4)

What is the most important resource?

What is the difference between intensive and extensive farming?

The water that is used on farms eventually flows through soil and rocks into nearby streams and rivers.