Table 4 Significance of the partition of the coupling mechanism between the support index and the pressure index.

From: Evaluation of resource and environmental carrying capacity in rare earth mining areas in China

Partition state

\(0\le \mathrm{y}\le {x}^{2}\)

\({x}^{2}\le \mathrm{y}<\mathrm{x}\)

\(\mathrm{x}\le \mathrm{y}<\sqrt{x}\)

\(\sqrt{x}\le \mathrm{y}\le 1\)

\(0 \le \mathrm{ x }\le 1\)

High-value Surplus area

Low-value Surplus area

Low-value

Load area

High-value

Load area