Back to Hub/7 Ecology/7.3 Biodiversity and the effect of human interaction on ecosystems

7.3.3: Land use

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Humans reduce the amount of land available for other animals and plants by building, quarrying, farming and dumping waste.

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The destruction of peat bogs, and other areas of peat to produce garden compost, reduces the area of this habitat.

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Destroying peat habitats reduces the variety of different plant, animal and microorganism species that live there.

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The decay or burning of the peat releases carbon dioxide into the atmosphere.

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Peat conflict: garden compost can support food production, but conserving peat bogs protects biodiversity and reduces carbon dioxide emissions.

Common exam mistakes

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Do not put peat extraction under deforestation; it is a land use issue about peat habitats.

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When discussing peat, include both biodiversity loss and carbon dioxide release if the question asks for environmental effects.

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Do not only repeat that peat contains carbon; explain that decay or burning releases carbon dioxide or methane.

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For peat evaluation, weigh compost or food-production benefits against habitat loss and greenhouse-gas release.

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