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The Land we Love
Home Agriculture Sprawl Greenbelts
What is it?
Why is it important?
Its Effects
What's organic?
Which is better?

As with many other human activities, farming impacts the environment in different ways. They include soil degradation, water pollution, land contamination and the loss of biodiversity.

#1: Soil Degradation
Activity Idea

Fun with Worms

Set up a worm composter in your classroom to discover one of the ways that wildlife can contribute to healthy ecosystems by enriching soil. To get started, click here.

Agricultural production depends on the quality of soil. High quality soil has a lot of nutrients and organic matter. When crops are grown, cultivated and harvested, the nutrients in the soil are used up by the plants. As a result, the soil is left with less nutrients.

Activity Idea

Soil - It's More
Than Just Dirt

Explore how plants and animals can contribute to healthy soil ecosystems: click here

If nutrients and organic matter are not returned to the soil (e.g. by leaving stalks, stems and leaves from the previous harvest on the field), it loses its ability to grow food. In those cases, the soil would then need artificial fertilizers and chemical compounds to enrich the soil. The problem arises when these fertilizers and chemicals leach into nearby rivers and streams and pollute the water system.

Did You Know...?

Topsoil is the upper layer of rich, dark earth that plants grow in. It is a renewable resource, but it takes from 300 to 1,000 years for just 2.5 centimetres of topsoil to develop!

- Green Future

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What is it? Why is it important? Its effects Sustainability What's 'organic'? Which is better?
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