Soil Health Expert Didi Pershouse Presents at TA
March 14, 2019
TA parent, Thetford resident, author, and soil health expert Didi Pershouse gave a presentation to Mr. Whitaker's Horticulture class about the "soil carbon sponge." With a simple experiment, she demonstrated the importance of healthy soils in our ecological communities. In the experiment, Pershouse invited students to "rain" onto flour (a stand-in for degraded soil) and then onto bread (a stand-in for healthy soil). Pershouse then showed them a photo of a rain simulator (below), demonstrating how healthy soil naturally soaks up rain, filters water, and maintains its structural integrity when wet. These properties are important for the prevention of flooding,...
