Quantitative assessment of ecological assets in the world heritage karst sites based on remote sensing: with a special reference to South China Karst

Heritage Science

Table 1 Evaluation indicators and grading criteria for ecological asset quality

Ecological asset category	Ecological asset quality status level
Ecological asset category	Excellent (%)	Good (%)	Moderate (%)	Poor (%)	Inferior (%)
Cropland	≥ 85	70–85	50–70	25–50	< 25
Forest	≥ 85	70–85	50–70	25–50	< 25
Shrub	≥ 85	70–85	50–70	25–50	< 25
Grassland	≥ 85	70–85	50–70	25–50	< 25