How are the soil mycorrhizae affected during the winter months?
There is extensive evidence that soil is an amazing tool for improving the quality of water runoff, for reducing peak flow volume, and for storing water for use by the tree and for groundwater recharge in urban settings. We also know that trees in soil are basically “added capacity” – that is, while the soil does all the work described above starting from day one, the tree’s ability to contribute to peak flow reduction and storage (through interception and evapotranspiration) accelerates as it grows and matures. As this is happening, the trees are also feeding the microbial life in the soil column with the sugars and carbohydrates that are the source of energy for the soil ecosystem. (2015) August Blogpost on Deep Root by Peter MacDonaugh.