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This graph shows the soil pH of 94 sites. pH measures whether a soil is acidic or basic (alkaline). Most of our sites are alkaline with a pH greater than 7.0, and about half of our sites are in the “Concerning” range, with a pH greater than 7.7. Colorado’s Front Range is known for its alkaline soils. Our high pH is partly why soil microbes have a much harder time in Colorado, and why improving our soil’s health takes longer here than in other parts of the country.
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Elizabeth Black is the producer of the Citizen Science Soil Health Project
The Citizen Science Soil Health Project
4340 N 13th St.
Boulder, CO 80304