Table 2 Semi-variance model parameters of ordinary kriging method.
From: kNDVI reveals vegetation dynamics and hydro–edaphic controls in inner Mongolia (2000–2024)
Soil nutrient | Model | ME | RMSSE | RMSE | MSE |
|---|---|---|---|---|---|
TP | Gaussian | 0.0028 | 0.9836 | 1.5689 | 1.5236 |
TN | Gaussian | 0.0005 | 1.1967 | 0.5385 | 0.5326 |
TK | Spherical | 0.0039 | 1.1628 | 1.5000 | 1.5961 |
SOM | Exponential | 0.0051 | 0.9579 | 2.7146 | 2.9268 |
AP | Exponential | 0.0016 | 1.1205 | 0.9592 | 0.8629 |
AN | Spherical | 0.0028 | 0.9995 | 3.2689 | 3.5616 |
AK | Gaussian | 0.0031 | 1.0618 | 0.1379 | 0.1432 |
pH | Exponenttial | 0.0035 | 1.1018 | 1.4213 | 1.2976 |
