Topic 8: 8.4 The taiga is increasingly threatened by commercial development — Edexcel GCSE Geography B
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Topic 8: 8.4 The taiga is increasingly threatened by commercial development explained
Topic 8: 8.4 The taiga is increasingly threatened by commercial development covers 2 specification points, including A.
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Direct threats from logging for softwood,… and B. How acid precipitation, forest fires, pests…. Open a point below for its explanation and revision guidance.
a. Direct threats from logging for softwood, pulp and paper production and indirect threats resulting from the exploitation of minerals, fossil fuels and HEP potential.
This criterion asks you to separate two kinds of threat to the taiga and explain how each arises. Direct threats come from logging itself: trees are felled for softwood timber, pulp and paper production, so the forest is lost where cutting occurs. Indirect threats come from other commercial activity that does not cut trees but still damages the forest. Exploiting minerals and fossil fuels, and developing hydroelectric power (HEP) potential, often requires roads, mines, pipelines and reservoirs through remote taiga. These routes fragment the forest and open access for further logging. Name the threat, classify it as direct or indirect, identify the activity, then link it to a consequence such as habitat loss.
b. How acid precipitation, forest fires, pests and diseases and forest fires contribute to a loss of biodiversity.
This criterion asks you to explain how four named factors contribute to a loss of biodiversity in the taiga: acid precipitation, forest fires, pests and diseases, and forest fires again. Biodiversity means the variety of species and habitats, so a strong answer shows which species or habitats decline and why. Acid precipitation lowers the pH of soils and water and can damage leaves and roots, so acid-sensitive plants and the animals that depend on them decline. Forest fires destroy vegetation and habitats directly, killing species that cannot escape and removing food and shelter. Pests and diseases kill large numbers of trees, reducing habitat structure and food for dependent species. The statement repeats forest fires, so treat it as one threat. For each factor, use a chain of cause, process and effect on biodiversity.
Your focus
- Classify named commercial activities as direct or indirect threats to the taiga.
- Explain how mineral, fossil fuel and HEP development can indirectly threaten taiga forest.
- Identify the products that logging for softwood, pulp and paper production removes from the taiga.
Show all 6 objectives
- Explain how acid precipitation reduces biodiversity in taiga soils, water and plants.
- Describe how forest fires and pests and diseases each reduce habitat or species numbers in the taiga.
- Select the option that correctly gives a cause, process and effect chain for one factor.
Topic 8: 8.4 The taiga is increasingly threatened by commercial development exam tips
Marking Points
- Distinguishes direct threats as the felling of trees for softwood timber, pulp and paper production.
- Identifies indirect threats as activity linked to minerals, fossil fuels and HEP potential rather than to logging.
- Explains that mining, fossil fuel extraction and HEP development bring roads, pipelines or reservoirs into remote taiga.
- Links access routes to further logging and to fragmentation of the forest.
- Sorts each named example into the correct direct or indirect category.
- Identifies biodiversity as the variety of species and habitats in the taiga.
- Explains that acid precipitation lowers soil and water pH, damaging plants and acid-sensitive species.
- Links forest fires to the direct destruction of habitats and to the loss of species that cannot escape.
- Describes how pests and diseases kill trees, removing habitat and food for dependent species.
- Uses a clear cause, process and effect chain for each factor.
- Treats the repeated forest fires item as one threat rather than two separate factors.
Examiner Tips
- 💡Write the direct or indirect label beside each threat before choosing an answer option.
- 💡Name the specific product, such as softwood timber, pulp or paper, when describing logging.
- 💡For mining, fossil fuels and HEP, state the infrastructure they bring rather than offering a general claim of damage.
- 💡Write one cause, process and effect chain for each factor before selecting an answer option.
- 💡Check that each option names a biodiversity consequence, such as species decline or habitat loss, not just the hazard.
- 💡Use the taiga's features, such as coniferous forest and cold climate, to make answers specific to the biome.
Common Mistakes
- Places mining and HEP under direct threats; move them to indirect threats because the statement classes them that way and trees are not felled for logging.
- Treats every commercial activity as logging; restrict direct threats to felling for softwood, pulp and paper production.
- Describes indirect threats in general terms without naming the infrastructure or access route that causes the damage; state the mechanism.
- Lists the four factors without explaining how each reduces biodiversity; add a process and a consequence for each one.
- Treats biodiversity as only the number of trees; widen the idea to variety of species and habitats.
- Describes acid precipitation mainly as a cause of global warming; keep to its effects on soils, water and plants.