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Discuss how soil development is influenced by any three of the following: - Mineral matter - Air - Water - Organic matter. - Leaving Cert Geography - Question 16 - 2017
Question 16
Discuss how soil development is influenced by any three of the following: - Mineral matter - Air - Water - Organic matter.
Worked Solution & Example Answer:Discuss how soil development is influenced by any three of the following: - Mineral matter - Air - Water - Organic matter. - Leaving Cert Geography - Question 16 - 2017
Step 1
Discuss how soil development is influenced by Mineral matter.
Answer
Mineral matter plays a crucial role in soil development as it contributes to the physical and chemical properties of the soil. It comprises the inorganic fragments from weathered rocks that provide essential nutrients necessary for plant growth. When mineral particles break down, they release vital elements like potassium, phosphorus, and magnesium, which are essential for various biochemical processes in plants. Additionally, mineral texture and structure affect soil drainage, fertility, and aeration, influencing the overall health of the soil ecosystem.
Step 2
Discuss how soil development is influenced by Air.
Answer
Air is essential for soil development, influencing both aerobic and anaerobic processes. The presence of air in the soil allows for gas exchange, providing oxygen for root respiration and microbial activity. Oxygen-rich soils promote aerobic decomposition of organic matter, resulting in the formation of humus, which enhances soil structure and fertility. In contrast, poorly aerated soils can hinder water drainage and promote anaerobic conditions, which are detrimental to plant roots and beneficial soil organisms. Air composition also affects the pH and chemical reactions in the soil.
Step 3
Discuss how soil development is influenced by Water.
Answer
Water is a fundamental factor in soil development, influencing erosion, nutrient transport, and chemical weathering. It acts as a medium for transporting dissolved nutrients and minerals to plants. Additionally, the availability of water affects soil texture and structure, impacting aggregate stability. Proper water levels are crucial for sustaining microbial activities that contribute to organic matter decomposition, which in turn enriches soil fertility. Conversely, excess water can lead to waterlogging, negatively affecting root health and soil function.