Challenges of desertification in two or more African countries — Eduqas A-Level Geography

Desertification is the process by which fertile land becomes desert, typically as a result of drought, deforestation, or inappropriate agriculture. In Africa, this is a critical issue affecting millions of people, particularly in the Sahel region, which stretches across the continent south of the Sahara. The challenges of desertification include loss of agricultural productivity, food insecurity, displacement of populations, and increased poverty. Understanding these challenges in specific countries, such as Niger and Ethiopia, is essential for A-Level Geography students as it illustrates the complex interactions between physical and human geography.

The topic is part of the WJEC A-Level Geography specification under 'Arid and Semi-Arid Environments'. It requires students to analyse the causes, impacts, and management strategies of desertification in contrasting African countries. By comparing Niger and Ethiopia, students can explore how different physical and socio-economic contexts shape the severity of desertification and the effectiveness of responses. This comparative approach is key to achieving high marks in exams, as it demonstrates synoptic thinking and the ability to apply concepts to real-world examples.

Desertification is not just an environmental issue; it is deeply intertwined with development challenges, governance, and global climate change. For example, in Niger, rapid population growth and reliance on subsistence farming exacerbate land degradation, while in Ethiopia, historical land tenure systems and recurrent droughts have led to severe soil erosion. International initiatives like the Great Green Wall aim to combat desertification, but their success depends on local participation and sustainable land management practices. Mastering this topic equips students with insights into one of the most pressing global challenges of the 21st century.

• →Desertification: The degradation of land in arid, semi-arid, and dry sub-humid areas, resulting from various factors including climatic variations and human activities.
• →Overgrazing: When livestock numbers exceed the carrying capacity of the land, leading to vegetation loss and soil compaction, which reduces infiltration and increases erosion.
• →Deforestation: The removal of trees for fuelwood or agriculture, which reduces soil stability and moisture retention, accelerating desertification.
• →Soil erosion: The removal of topsoil by wind or water, often exacerbated by loss of vegetation cover, leading to reduced fertility and land productivity.
• →Sustainable land management (SLM): Practices such as agroforestry, terracing, and rotational grazing that aim to maintain or enhance land productivity while preventing degradation.

• Identification of causes of desertification in the selected African countries
• Analysis of the consequences of desertification on the environment and local populations
• Evaluation of strategies used to address the causes and consequences of desertification
• Application of the concept of sustainability in the context of desertification management
• Use of specific examples from two or more African countries

• 💡Ensure you have two distinct case studies of African countries to compare or contrast
• 💡Use the specialised concepts (sustainability, resilience, risk, inequality) to frame your analysis
• 💡Clearly distinguish between the causes (e.g., overgrazing, climate variability) and the consequences (e.g., food insecurity, migration)
• 💡Evaluate management strategies by considering their success, limitations, and sustainability
• 💡Use geographical terminology accurately when discussing environmental degradation
• 💡Use specific, named examples from two African countries (e.g., Niger and Ethiopia) to illustrate causes, impacts, and responses. For instance, discuss how the Tigray region in Ethiopia has suffered from soil erosion due to deforestation, while in Niger, the practice of 'goulbi' (overcultivation) has degraded land.
• 💡Evaluate the effectiveness of management strategies, such as the Great Green Wall initiative or local projects like the Humbo Community-Based Natural Regeneration in Ethiopia. Show awareness of both successes and limitations, such as funding issues or lack of community engagement.
• 💡Link desertification to wider geographical concepts like climate change, food security, and sustainable development. For example, explain how climate change is increasing the frequency of droughts in the Sahel, exacerbating desertification, and how this connects to the UN Sustainable Development Goals (SDGs).

• Failing to focus on two or more countries as required by the specification
• Describing desertification in general terms without linking it to specific African contexts
• Neglecting to evaluate the effectiveness of management strategies
• Confusing desertification with the natural expansion of deserts
• Lack of focus on the human-environment interaction aspect
• Misconception: Desertification is only caused by drought. Correction: While drought can trigger desertification, human activities like overgrazing, deforestation, and poor irrigation practices are often the primary drivers. In Niger, for example, population pressure leads to land overuse even in years with average rainfall.
• Misconception: Desertification means the desert is advancing like a wave. Correction: Desertification is a patchy process; it occurs in localized areas where land degradation is severe, not as a uniform expansion of the Sahara. In Ethiopia, degraded areas are often interspersed with productive land.
• Misconception: Planting trees alone can reverse desertification. Correction: Tree planting must be part of an integrated approach that addresses root causes like land tenure, poverty, and grazing management. In the Sahel, farmer-managed natural regeneration (FMNR) has been more successful than large-scale tree planting.