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Explain how the aspect of a field may affect the temperature of a soil in early spring. - Leaving Cert Agricultural Science - Question e - 2014
Question e
Explain how the aspect of a field may affect the temperature of a soil in early spring.
Worked Solution & Example Answer:Explain how the aspect of a field may affect the temperature of a soil in early spring. - Leaving Cert Agricultural Science - Question e - 2014
Step 1
Soil Temperature Increase in Different Aspects
Answer
The aspect of a field refers to the direction it faces, and this can significantly influence the soil temperature during early spring. In south-facing fields, the soil typically gains warmth sooner compared to north-facing fields. This is due to increased exposure to sunlight, which is more direct and prolonged in southern orientations.
Conversely, north-facing fields experience less sunlight exposure in early spring, leading to a slower increase in soil temperature. The reduced sunlight results in cooler soil temperatures, which can affect plant growth and development.
Step 2
Influence of Wind and Soil Moisture
Answer
Furthermore, south-facing fields are often drier than north-facing ones. The faster evaporation rates in the warmer south-facing areas can lead to quicker drying of the soil, which can further influence temperature changes. Additionally, south-facing fields are generally more exposed to prevailing winds, allowing for better air circulation. This can affect temperature moderation, helping to keep the soil warmer compared to the north-facing counterparts, where moisture retention may be higher and temperatures lower due to decreased sunlight and wind exposure.