Soil greenhouse gas determination method of rubber agriculture and forestry composite planting system

The invention relates to the technical field of agricultural ecology, and further relates to a soil greenhouse gas determination method of a rubber agriculture and forestry composite planting system. Comprising the following steps: S1, determining the installation positions and the installation number of gas tanks: dividing the rubber agriculture and forestry composite planting system into an intercropping area and a non-intercropping area; the air boxes are respectively and simultaneously arranged in the intercropping area and the non-intercropping area; 2-6 air boxes are arranged according to the age of the rubber tree; s2, mounting a gas tank base, namely horizontally inserting the base with a water injection sealing groove into the soil at the depth of 4-6cm 5-7 days before collecting the soil gas; s3, collecting soil gas; s4, measuring the concentration of the soil gas: measuring the concentrations of CO2, N2O and CH4 in the gas sample by adopting a gas chromatograph; and S5, calculating the soil gas emi