Friday, 2 November 2012
Oh yes indeed, my number ONE current fascination is our gorgeous little Grand-daughter..... in between precious, frequent sessions of gazing at her adorable little face, I'm working on my course material (albeit distractedly!).
One of my assignments is a soil sedimentation test from 2 weeks ago. The results are rather surprising. We have a lot of clay here in Alberta, and this test sure confirms that! Sand is at the bottom (about 2cm worth), black silt is on top of that and clay is the largest layer on top. The water is STILL murky with suspended clay particles, but if you look VERY closely, you can see the top of the clay layer in the murky water. As it's STILL not fully settled out after 2+ weeks, that layer is still growing.
I'm humbled by the sheer volume of information about the elaborate ecosystem within our soil and I have begun to realize how every living thing on the planet is somehow dependent upon it. That fact serves to clearly illustrate the urgent need to both protect and preserve this precious, life giving resource.