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Using Figure 12a, Figure 12b and your own knowledge, assess the potential role of human activity as an arresting factor shaping this landscape - AQA - A-Level Geography - Question 6 - 2019 - Paper 1
Question 6
Using Figure 12a, Figure 12b and your own knowledge, assess the potential role of human activity as an arresting factor shaping this landscape. Figure 12a shows a s... show full transcript
Worked Solution & Example Answer:Using Figure 12a, Figure 12b and your own knowledge, assess the potential role of human activity as an arresting factor shaping this landscape - AQA - A-Level Geography - Question 6 - 2019 - Paper 1
Step 1
Understanding the Concept of Plagioclimax
Answer
In examining human influence on the moorland landscape depicted in Figures 12a and 12b, it is essential to understand the concept of plagioclimax. This refers to a stable ecological state that may arise due to human activities preventing the natural progression of ecological succession, as illustrated in Figure 12a.
In the case of heather moorland, the environment often remains in a sub-climax state due to specific agricultural practices, grazing, and land management techniques. Thus, human activity creates an artificial equilibrium that stunts natural vegetation growth and species diversity.
Step 2
Assessing Human Influence on Heather Moorland
Answer
Human activity significantly influences heather moorland in the UK, as shown in the landscape of Figure 12b. The management of this landscape includes controlled burning and grazing, which promotes heather growth while simultaneously limiting the encroachment of trees and other species.
Such practices uphold the ecological balance, allowing certain flora and fauna to thrive while preventing the forestation that would naturally occur over time based on the succession depicted in Figure 12a.
Step 3
Consequences of Human Interventions
Answer
While human intervention generally maintains heather moorland, it can have adverse effects if not carried out correctly. Overgrazing or excessive burning can lead to degradation of soil and loss of biodiversity. Moreover, if management reduces too drastically, natural succession may happen, leading to a shift away from the current plagioclimax state, potentially reducing the habitat's ecological health and resilience.
Step 4
Conclusion on Human Activity's Role
Answer
In summary, human activity plays a pivotal role as an arresting factor in shaping the moorland landscape in the UK. By actively managing land through specific practices, humans can sustain this unique ecosystem. However, improper management may risk destabilizing the balance achieved, highlighting the double-edged sword of human interaction with natural environments.