Table 1 Threat factors and related coefficients.
From: Spatiotemporal effects of urban sprawl on habitat quality in the Pearl River Delta from 1990 to 2018
Threat factor | \(d_{{r\,max}}\)(km) | Weight \(w_{r}\) | Distance–decay function |
|---|---|---|---|
Cropland | 5 | 0.5 | Exponential |
City/town | 9 | 1.0 | Exponential |
Rural settlements | 6 | 0.6 | Exponential |
Other construction land | 2 | 1.0 | Exponential |
Unused land | 1 | 0.4 | Linear |
Land reclamation | 2 | 0.3 | Linear |
