Height | 2001–2006 | 2010–2015 |
---|
Soil | 2006 | 2015 |
---|
| r | p | r | p |
---|
Total C | − 0.29 | 0.22 | 0.559 | 0.01 |
Total N | − 0.39 | 0.09 | 0.38 | 0.10 |
C:N | 0.38 | 0.10 | 0.687 | 0.001 |
Avail. P | 0.005 | 0.98 | 0.63 | 0.002 |
Exch. K | 0.02 | 0.94 | − 0.57 | 0.008 |
Exch. Ca | − 0.02 | 0.92 | − 0.52 | 0.02 |
Exch. Mg | − 0.06 | 0.81 | − 0.55 | 0.01 |
- “Avail.” means “available”; “Exch.” means “exchangeable”
- Total C, total carbon in soil; Total N, total soil nitrogen; C:N, ratio of soil organic carbon to total nitrogen. The soil data were collected in 2006 and 2015, while the height data were estimated for the annual average increment of the measuring periods of 2001–2006 and 2010–2015. The data were the values from each plot of four treatments, n = 5