Research Article
Phragmites australis + Typha latifolia Community Enhanced the Enrichment of Nitrogen and Phosphorus in the Soil of Qin Lake Wetland
Table 3
Grey Correlation Analysis on contents of N and P between organs of P. australis and different depth of soil.
| Depth of soil | Association index | Association index of N and P between the whole plant and different depth of soil | Winter | Spring | Summer | Autumn | N | P | N | P | N | P | N | P | N | P |
| 0–15 | 0.30 | 0.40 | 0.30 | 0.54 | 0.51 | 0.72 | 0.25 | 0.25 | 0.71 | 0.65 | ≥15–30 | 0.35 | 0.40 | 0.25 | 0.45 | 0.45 | 0.66 | 0.35 | 0.25 | 0.68 | 0.66 | ≥30–45 | 0.43 | 0.36 | 0.25 | 0.45 | 0.52 | 0.64 | 0.33 | 0.25 | 0.67 | 0.65 | ≥45–60 | 0.41 | 0.33 | 0.26 | 0.62 | 0.41 | 0.70 | 0.25 | 0.25 | 0.64 | 0.65 | Seasonal association index of N and P between the whole plant and soil | 0.37 | 0.37 | 0.27 | 0.52 | 0.47 | 0.68 | 0.30 | 0.25 | | |
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