Fig 1.
Geographic location of the study area.
Fig 2.
Spatial distribution of organic carbon in different types of soils in the Caohai.
Table 1.
Statistical analysis of soil organic carbon (SOC) content across different land use types in Caohai Wetland.
Table 2.
Semi-variational model and fitting parameters for soil organic carbon content.
Table 3.
Results of spatial interpolation prediction of soil organic carbon content.
Table 4.
Prediction accuracy of different spatial interpolation methods.
Table 5.
Correlation analysis of factors affecting soil organic carbon content.
Fig 3.
Predicted spatial distribution of soil organic carbon based on different interpolation methods.
Fig 4.
Comparison of measured and predicted values of different interpolation methods.
Fig 5.
Principal component analysis of soil organic carbon content.