Table 2. Summary results of multiple linear regressions based on rice first difference time series data (1980–2010) for two dominant rice production areas in China.
| Region | Coefficients | S.E | t Stat | P-value | Lower 95% | Upper 95% |
|---|---|---|---|---|---|---|
| Northeast China | ||||||
| Intercept | 0.1433 | 0.0636 | 2.2537 | 0.0245 | 0.0185 | 0.2682 |
| ΔTmax | -0.0077 | 0.0106 | -0.7284 | 0.4666 | -0.0285 | 0.0131 |
| ΔTmin | 0.0247 | 0.0118 | 2.0891 | 0.0371** | 0.0015 | 0.0479 |
| ΔRf | -0.0009 | 0.0003 | -3.1064 | 0.0020*** | -0.0014 | -0.0003 |
| R Square | 0.0176 | Sign F | 0.0064 | |||
| Lowland Rice | ||||||
| Intercept | 0.1062 | 0.0588 | 1.8048 | 0.0717 | -0.0094 | 0.2217 |
| ΔTmax | 0.0017 | 0.0090 | 0.1877 | 0.8512 | -0.0159 | 0.0193 |
| ΔTmin | -0.0141 | 0.0119 | -1.1859 | 0.2362 | -0.0375 | 0.0093 |
| ΔRf | 0.0000 | 0.0001 | -0.0380 | 0.9697 | -0.0002 | 0.0002 |
| R Square | 0.0037 | Sign F | 0.5871 |
** significant at 0.05 level
*** significant at 0.01 level