| Evaluation factor | Suitability of location | Water supply system | Depth of water | Ratio of length to width | Slope of flow channel | Number of planted species | Vegetation coverage | Ecological health |
|---|---|---|---|---|---|---|---|---|
| Suitability of location | 1 | |||||||
| Water supply system | 0.099 | 1 | ||||||
| Depth of water | 0.223 | 0.665 | 1 | |||||
| Ratio of length to width | 0.001 | 0.338 | 0.355 | 1 | ||||
| Slope of flow channel | 0.200 | 0.405 | 0.576 | 0.588 | 1 | |||
| Number of planted species | −0.456 | 0.180 | 0.109 | −0.021 | −0.059 | 1 | ||
| Vegetation coverage | 0.188 | 0.630 | 0.674 | 0.498 | 0.641 | 0.023 | 1 | |
| Ecological health | 0.062 | 0.675 | 0.710 | 0.253 | 0.334 | −0.049 | 0.593 | 1 |