Model |
Predictor Variables |
% OC Estimates |
% OC Estimates |
% OC
Estimates |
RMSE |
R2, modeled vs measured
data |
|
|
Deg |
Treat |
Ref |
|
|
Measured Data |
NA |
3.09 |
2.83 |
3.93 |
NA |
NA |
Linear Mixed Model |
Site, reach sample hole, depth, mean annual
temperature, NDVI, silt+clay, soil type |
3.19 |
2.78 |
4.26 |
1.33 |
0.64 |
Random Forest Model |
treatment, depth, texture, elevation, NDVI, mean
annual temperature, drainage area, land cover class, geology, ecoregion,
silt+clay, vegetation |
3.36 |
2.93 |
4.01 |
1.26 |
0.68 |
Boosted Regression Model |
treatment, depth, texture, elevation, NDVI,
mean annual temperature, drainage area, land cover class, geology,
ecoregion, silt+clay, vegetation |
3.30 |
2.73 |
4.10 |
1.36 |
0.62 |