Give three reasons for low earthworm populations in certain soil conditions. - Leaving Cert Agricultural Science - Question d - 2009
Question d
Give three reasons for low earthworm populations in certain soil conditions.
Worked Solution & Example Answer:Give three reasons for low earthworm populations in certain soil conditions. - Leaving Cert Agricultural Science - Question d - 2009
Step 1
Reason 1: Low pH
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Answer
Soil with low pH can create an acidic environment that is detrimental to earthworm survival, leading to decreased populations.
Step 2
Reason 2: Waterlogged Conditions
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Answer
Excessive waterlogging can create anaerobic conditions which are unfavorable for earthworms, resulting in lower population densities.
Step 3
Reason 3: Low Organic Matter
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Answer
Soil that has low or no organic matter lacks the essential nutrients that earthworms feed on, thus impacting their numbers negatively.
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