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We calculated each of our 7 crop group’s average longitude and average pH, which is shown in the following two graphs. No surprise, trees are located to the west in our forests, with dryland gains and commodity crops located to the east, where large sections of undeveloped agricultural lands remain. In the second graph, you can see how the order of the average pH of the 7 groups closely corresponds to their relative longitude, as shown in the first graph. Groups further east had the highest pH, while groups further west had the lowest pH. These 2 graphs suggest that some crop groups face more of a disadvantage than others when it comes to soil health, since their location can determine their soil pH, which in turn can make improving their soil’s health more difficult.
Elizabeth Black is the producer of the Citizen Science Soil Health Project