Frost heaving
noun phrasePronunciation: /frɔːst ˈhiːvɪŋ/
The upward displacement and expansion of soil caused by ice crystal formation in frozen soil, which can mechanically damage plant roots and displace seedlings. This process is particularly damaging during freeze-thaw cycles when water repeatedly expands and contracts.
Plain English
The lifting and cracking of soil caused by ice crystal growth in frozen ground that can damage plant roots.
Etymology & History
Usage
"Frost heaving caused severe damage to winter wheat seedlings in regions experiencing multiple freeze-thaw cycles."
Style guide notes: Distinguish frost heaving (soil movement) from direct frost damage (cellular ice formation) in plant tissues.
Also known as
Related Terms
Frequently Asked Questions
What soil conditions promote frost heaving?
High water content, fine soil texture, and poor drainage increase ice lens formation and heaving severity.
How do plants tolerate frost heaving damage?
Through deep rooting systems, flexible tissues, and ability to regenerate damaged roots post-winter.
Why Test Candidates on This?
Relevant for cold climate agriculture and understanding mechanical abiotic stress mechanisms.
Required skill level: Junior