Table 3 Linear regression and correlation coefficients for the relationship between SAVI and LST; SAVI and AAP in 1985, 2000, and 2015 pixel-by-pixel
Dependent variable | Independent variable | Regression equation | R2 (%) | R | r | Sig. |
|---|---|---|---|---|---|---|
SAVI_2015 | LST_2015 | Y = 0.331 − 0.0057x | 7.2 | 0.269 | − 0.269 | 0.000 |
SAVI_2000 | LST_2000 | Y = 0.352 − 0.0052x | 12.9 | 0.359 | − 0.359 | 0.000 |
SAVI_1985 | LST_1985 | Y = 0.193 − 0.0011x | 1.0 | 0.102 | − 0.102 | 0.000 |
SAVI_2015 | AAPa | Y = 0.287 − 0.0002x | 1.8 | 0.135 | − 0.135 | 0.000 |
SAVI_2000 | AAPb | Y = 0.138 − 0.00004x | 0.3 | 0.057 | 0.057 | 0.000 |
SAVI_1985 | AAPc | Y = 0.051 − 0.0002x | 6.4 | 0.252 | 0.252 | 0.000 |