Question:
The thermal conductivity of dry soil is primarily influenced by:
The thermal conductivity of dry soil is primarily influenced by:
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Moisture enhances soil's ability to conduct heat due to water's higher thermal conductivity.
Updated On: Jul 2, 2026
- Soil color
- Organic matter content
- Soil texture
- Soil moisture content
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The Correct Option is D
Approach Solution - 1
Thermal conductivity of soil increases with moisture content because water has higher thermal conductivity than air. Moist soils conduct heat more effectively than dry soils, impacting temperature regulation in the root zone.
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Approach Solution -2
Compare the Options: Three of the four options (color, organic matter, texture) affect thermal conductivity only mildly and indirectly.
Moisture content has the largest effect because water conducts heat far better than the air trapped between soil particles — more moisture means more effective heat transfer through the soil.
So even though the other factors play a role, moisture content dominates the comparison, making it the PRIMARY influence.
Moisture content has the largest effect because water conducts heat far better than the air trapped between soil particles — more moisture means more effective heat transfer through the soil.
So even though the other factors play a role, moisture content dominates the comparison, making it the PRIMARY influence.
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