A method for estimating the organic carbon content of
wetland soil with different restoration years, which relates to the technical field of
carbon sink accounting. The method includes: setting a plurality of sampling points in a target research area, and collecting soil samples; preprocessing
satellite image data and determining first input features, determining second input features according to geographic coordinates of the sampling points, and inputting the features into a regression prediction model to obtain a calculation result; generating
soil organic matter content data distribution according to the calculation result; and dividing sample areas with different restoration years according to
land use history or restoration measure records by using space-for-time substitution, and counting the
soil organic matter content and total amount in each
sample area according to the
soil organic matter content data distribution to determine the organic carbon content of soil with different restoration years.