June 29, 2017: Durham Master Gardeners: Talk Title: Earth, Fire, Water, Air - Geology and Plant Communities.

Geological processes create landscapes and habitats, which influence the locations and types of plant communities. Using examples from Ontario and Newfoundland and Labrador, the presentation covers: a) Correlation - causality - exceptions; b) Soil nutrients and plant foothold; c) Substrate conditions (acidic / alkaline or limey); d) Alvar; e) Glacial influences; and f) Poisonous rocks. The presentation was delivered to the Durham Master Gardeners on June 29, 2017.

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 Dr. Andy Fyon in discussion with the audience about the range in size of the geological features to consider and the influence on plant communities. Phot0 by E. Ginn, June 29/17. 

Dr. Andy Fyon in discussion with the audience about the range in size of the geological features to consider and the influence on plant communities. Phot0 by E. Ginn, June 29/17.