Variables | Mean | St. dev | Max | Min | Expected impact | Definition |
---|---|---|---|---|---|---|
SSC | 5.12 | 2.53 | 8.5 | 0.83 | / | CRS sustainability coefficient |
℃ | 14.87 | 5.03 | 26.01 | 3.84 | + | Temperature |
℃2 | 235.71 | 145.81 | 649.12 | 23.07 | − | Temperature squared term |
PSC | 50.07 | 41.54 | 142.52 | 2.34 | + | Planting scale (million/ha) |
PST | 14.17 | 7.91 | 36.6 | 1.9 | − | Planting structure (%) |
FS | 1.26 | 0.37 | 2.52 | 0.66 | + | Multiple-crop index |
SDI | 0.71 | 0.11 | 0.86 | 0.45 | + | Simpson Diversity Index |
EP | 2.75 | 1.24 | 6.71 | 1.05 | − | Energy pressure |
TGP | 0.53 | 0.51 | 1 | 0 | + | Topography |
EDL | 0.33 | 0.47 | 1 | 0 | − | Economic development level |