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Discuss how human activity can have both positive and negative impacts on soil characteristics. - Leaving Cert Geography - Question 17 - 2017
Question 17
Discuss how human activity can have both positive and negative impacts on soil characteristics.
Worked Solution & Example Answer:Discuss how human activity can have both positive and negative impacts on soil characteristics. - Leaving Cert Geography - Question 17 - 2017
Step 1
Discuss Positive Impacts of Human Activity on Soil Characteristics
Answer
Human activities, such as sustainable agricultural practices, can enhance soil characteristics positively. For example:
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Organic Farming: Utilizing compost and organic fertilizers improves soil structure, increases nutrient content, and enhances microbial activity.
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Soil Conservation Techniques: Practices like contour plowing and terracing help prevent soil erosion, maintain moisture levels, and encourage healthy soil ecosystems.
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Reforestation: Planting trees improves soil fertility through leaf litter, which adds organic matter and nutrients to the soil, and reduces erosion.
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Crop Rotation: This practice prevents soil nutrient depletion and reduces pest build-up, promoting a healthier soil structure.
Step 2
Discuss Negative Impacts of Human Activity on Soil Characteristics
Answer
Conversely, certain human activities can adversely affect soil characteristics. Examples include:
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Industrial Agriculture: Over-reliance on chemical fertilizers can lead to nutrient imbalances and soil degradation.
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Deforestation: Clearing forests diminishes soil quality by increasing erosion and decreasing organic matter input.
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Urbanization: Construction leads to soil compaction, loss of topsoil, and disruption of natural drainage systems.
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Pollution: Contaminants from industrial activities can seep into the soil, harming microbial communities and reducing fertility.
Step 3
Discuss Overall Coherence
Answer
To ensure clarity and coherence in discussing the impacts of human activity on soil characteristics, it is essential to present a balanced view, emphasizing how both the positive and negative aspects interrelate. By analyzing specific practices and their effects, one can comprehensively understand the role human activity plays in the health of our soils, thus allowing for more informed decisions about land use and environmental management.