Table 1 Methods for calculating relative contribution rates of climate factors and human activities.
Slope(NDVIMV) | Driving factor | Classification criteria | Contribution rate /% | ||
|---|---|---|---|---|---|
Slope(NDVIPV) | Slope(NDVIHV) | Climate change | Human activity | ||
> 0 | PV&HA | > 0 | > 0 | \(\frac{Slope({NDVI}_{PV})}{Slope({NDVI}_{MV})}\) | \(\frac{Slope({NDVI}_{HA})}{Slope({NDVI}_{MV})}\) |
PV | > 0 | < 0 | 100 | 0 | |
HA | < 0 | > 0 | 0 | 100 | |
< 0 | PV&HA | < 0 | < 0 | \(\frac{Slope({NDVI}_{PV})}{Slope({NDVI}_{MV})}\) | \(\frac{Slope({NDVI}_{HA})}{Slope({NDVI}_{MV})}\) |
PV | < 0 | > 0 | 0 | 100 | |
HA | > 0 | < 0 | 100 | 0 | |
