From: Application of LiDAR data to maximise the efficiency of inventory plots in softwood plantations
Inferential framework | Number of strata | Design variable | Estimation variables | Regression model | Relative bias | RMSE | PLE | Relative efficiency |
---|---|---|---|---|---|---|---|---|
Design- | - | - | Expansion | - | 0.02 | 6.5 | 13.0 | 1.0 |
based | 2 | OV | Expansion | - | −0.02 | 5.3 | 10.6 | 1.5 |
3 | OV | Expansion | - | 0.04 | 4.0 | 8.0 | 2.0 | |
4 | OV | Expansion | - | 0.01 | 4.4 | 8.8 | 2.2 | |
6 | OV | Expansion | - | 0.00 | 3.8 | 7.6 | 2.4 | |
2 | OV | Regression | Strata + OV | 0.06 | 4.4 | 8.8 | 2.2 | |
3 | OV | Regression | Strata + OV | 0.11 | 4.0 | 8.0 | 2.6 | |
4 | OV | Regression | Strata + OV | 0.04 | 4.0 | 8.0 | 2.6 | |
6 | OV | Regression | Strata + OV | 0.04 | 4.1 | 8.2 | 2.5 | |
4 | OV + CC | Expansion | - | 0.02 | 4.9 | 9.8 | 1.8 | |
6 | OV + CC | Expansion | - | 0.05 | 4.6 | 9.2 | 2.0 | |
4 | OV + CC | Regression | Strata + OV | −0.14 | 4.4 | 8.8 | 2.2 | |
6 | OV + CC | Regression | Strata + OV | −0.05 | 5.0 | 10.0 | 1.7 | |
Model- | - | OV | Model | OV | −0.08 | 4.1 | 8.2 | 2.5 |
based | - | OV + CC | Model | OV + CC | −0.12 | 4.2 | 8.4 | 2.4 |