9 savanna users
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The savanna is used by pastoralists who rear grass-eating animals and move them to find grass, which is a sustainable practice. Farmers who try to farm more intensively by continually moving to new land and burning scrub to plant more crops can cause desertification over time as the soil loses nutrients and blows away, leaving the land useless. As a savanna farmer, life is difficult - crops get poorer as the soil degrades and there are worries that the land may turn to desert without options to support the family.
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- Nutrients cycle through the ecosystem via decomposition of organic matter and uptake by plants and animals
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- Nutrients are recycled back into the soil and taken up again by plants
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You could draw arrows showing the nutrient flow between components like trees, decomposers, soil, animals etc. Label each step in the cycle and explain
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9 savanna users
- 1. Who Uses the Savannah?
- 2. Lesson Objectives • To know who uses the savanna and why • To understand why their practises have changed • To imagine you are a farmer and explain how their lives have changed
- 5. The Main Users – Pg 58+59 • A pastoralist – A pastoralist is someone who rears grass eating animals for a living and they move with them to find grass to eat – This is a sustainable farming method because it allows the land to recover, rather than over grazing.
- 6. If you try to farm more intensively, the problem starts when…. • Put the following sentences into a flow diagram • You move to a new patch of land • But your family needs food or it will starve….. • ….. And burn the scrub and plant more crops. • ….and without any shelter , it dries up and gets blown away. • So your crops grow poorer and poorer • But over time the soil loses all its nutrients
- 8. You move to a You burn the scrub and new patch of land Plant more crops Without any shelter it Dries up and blows But over time the soils away Loses its nutrients But your family needs So your crops get It or they will starve poorer and poorer
- 12. Desertification • This is when a place starts to turn into a desert. • The soil then blows away and nothing can grow there any more • When it does rain, the soil gets washed away and the land becomes useless • Here
- 13. Task • Imagine you are a farmer in the savannah • Write about your life and the problems that are occurring • Is it your fault? • Do you have any options? • Talk about your worries • The worries of a savanna farmer