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Using Figure 8 and your own knowledge, assess the view that temperature variation is the most significant factor in the development of this vegetation - AQA - A-Level Geography - Question 4 - 2020 - Paper 1
Question 4
Using Figure 8 and your own knowledge, assess the view that temperature variation is the most significant factor in the development of this vegetation. Figure 8 sho... show full transcript
Worked Solution & Example Answer:Using Figure 8 and your own knowledge, assess the view that temperature variation is the most significant factor in the development of this vegetation - AQA - A-Level Geography - Question 4 - 2020 - Paper 1
Step 1
Assess the view that temperature variation is the most significant factor in the development of this vegetation
Answer
In assessing the view that temperature variation is the most significant factor in the development of tundra vegetation, it is important to consider the factors influencing this unique biome.
Temperature Variation
Temperature significantly influences vegetation types. In tundra environments, the short growing season is characterized by cooler temperatures, which restricts plant growth. For instance, during the summer months, temperatures are higher, allowing vegetation like mosses, lichens, and dwarf shrubs to flourish despite the harsh conditions. Thus, temperature variations between seasons play a critical role in determining the types of vegetation that can thrive in this area.
Other Contributing Factors
While temperature is essential, several other factors also impact vegetation development:
- Soil Composition: The type of soil significantly affects vegetation. Tundra soils are generally poorly developed, thin, and may contain permafrost. This limits root penetration and access to nutrients, which is crucial for plants to grow.
- Moisture Availability: The availability of water, which can fluctuate with precipitation patterns and snowmelt, also influences vegetation. Seasons of abundant moisture can promote plant growth, especially during the brief growing season.
- Altitude: The Sajama National Park is located at a high altitude, which impacts temperature and climatic conditions. Higher elevations tend to have colder temperatures year-round, which can further restrict the types of vegetation present.
Conclusion
In conclusion, while temperature variation is indeed a significant factor in the development of tundra vegetation, it operates in conjunction with other factors such as soil quality and moisture availability. A holistic view that integrates these elements provides a more comprehensive understanding of vegetation development in cold environments.