Table 3 Classification criteria for trends in vegetation cover change based on the slope (θslope) of the regression of the univariate linear equation for vegetation cover change.
From: Analysis of vegetation coverage changes and driving forces in the source region of the yellow river
Level | θslope |
|---|---|
Obvious degradation | ≤−0.0019 |
Mildde gradation | −0.0019~−0.0010 |
Basically stable | −0.0010~−0.0002 |
Slight improvement | −0.0002 ~ 0.0006 |
Significant improvement | ≥ 0.0006 |
