Next, it is a methodological topic, in which 30 soil samples were collected from Glycyrrhiza uralensis Fisch in Gansu Province, and then the chemical composition was analyzed. 1, measuring the ph value of the soil; 2, measuring the soil conductivity; 3, measuring soil nutrient content; 1, measuring soil color; 2, measuring soil texture; 3, measuring the soil reflectivity; And, from the collected soil samples, through interviews with farmers and landowners, the query data are: 1 planting frequency, vegetation type, covered soil, soil management methods and fertilization types.<br>The data about climate, average temperature, relative humidity and average rainfall in the sampling area were collected from the weather station, and satellite data were collected. Regarding the height characteristics of the sampling area, the next step was to use the multi-linear regression output to provide data for establishing the model. The result was that the model was used to evaluate the carbon in the soil, and then it was used in farmland. The output 2 was that the model could be used to understand the carbon content in the soil.
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