Table 1 Table of Regression.
From: Climate impacts on long-term silage maize yield in Germany
Variable | Month | Specification | Silage Maize Anomaly SE: (Standard)/(Driscoll-Kraay)/(Bootstrap) |
|---|---|---|---|
Precipitation | July | Polynom (degree 1) | 0.264*** (0.028)/(0.033)/(0.110) |
July | Polynom (degree 2) | 0.001 (0.0003)/(0.001)/(0.001) | |
July | Polynom (degree 3) | −0.00001** (0.00000)/(0.00000)/(0.000) | |
Temperature | July | Polynom (degree 1) | −6.443*** (0.634)/(1.001)/(5.840) |
July | Polynom (degree 2) | −4.050*** (0.305)/(0.291)/(3.664) | |
July | Polynom (degree 3) | 0.703*** (0.078)/(0.104)/(0.976) | |
Soil Moisture Index | June | severe drought | 10.622*** (2.196)/(2.880)/(7.150) |
June | moderate drought | 8.723*** (1.988)/(2.303)/(3.960) | |
June | dry | 3.198* (1.722)/(1.763)/(2.561) | |
June | wet | −6.155** (2.203)/(2.462)/(4.311) | |
June | abundantly wet | −12.173*** (2.660)/(3.813)/(5.767) | |
June | severely wet | −52.091*** (3.618)/(5.850)/(21.034) | |
Soil Moisture Index | August | severe drought | −47.447*** (2.609)/(3.820)/(12.549) |
August | moderate drought | −21.952*** (2.066)/(2.837)/(5.985) | |
August | dry | −8.200*** (1.771)/(2.495)/(2.716) | |
August | wet | 0.656 (2.084)/(1.800)/(4.000) | |
August | abundantly wet | −3.447 (2.428)/(2.431)/(5.881) | |
August | severely wet | −10.703*** (3.548)/(3.755)/(10.706) | |
Constant | 18.905*** (1.155)/(1.527)/(4.710) | ||
In-sample: | R2: 0.389 | Adj. R2: 0.387 | Adj. R2 - full variation: 0.705 |
LOCV (10-folds, 20 repeats): | R2: 0.385 | RMSE: 37.014 | MAE: 28.288 |
LOCV (annual blocks): | R2: 0.083 | RMSE: 39.145 | MAE: 30.589 |
LOCV (state blocks): | R2: 0.378 | RMSE: 37.637 | MAE: 29.169 |
Observations | 4,625 |
