Ask an arborist

tree-care.info for tree advice

quantifying the influence of tree rootlets on clay foundations

quantifying the influence of tree rootlets on clay foundations
Posted by: brian griffiths (IP Logged)
Date: February 09, 2020 23:59


Here's a question.
We know that clay soils will expand and contract with wet and dry seasons. Also, we know that this volumeric change can be exasperated by the presence of mature trees.
Is there some formulaic measure regarding the amount of rootlets present in a sample?
For example; a percentage per unit volume.
Perhaps the sample volume should be, say, a 10cm cube (0.001m3) with regard to building foundations.
Would a 0.5% presence of rootlets (by volume) have negligible or no effect on the volumeric change experienced by the clay?
Would a 5% presence by significant?
Could a quantitative scale of risk be developed along these outlines?

Thank you.

Subject Posted By Posted
|  quantifying the influence of tree rootlets on clay foundations brian griffiths 09/02/2020 23:59

Before posting, make sure you have read through our tips on getting an answer and searched to see if your question has already been answered

Your Name: 
Your Email: 
Subject: 
Spam prevention:
Please enter the code that you see below in the input field. This helps ensure that automated systems do not post spam to the forum.
CAPTCHA
This is a moderated forum. Your message will remain hidden until it has been approved by a moderator or administrator

Advice offered in this forum is of a general nature only. It is by its nature not based on any site investigation and should not be relied upon. Neither the forum administrator nor any contributor will be held liable for damages occurring as a result of relying on advice given here. You should contact a competent arboriculturist for a more detailed answer.