Table 1.
Age | Trend | F | 1‐year‐old | 3‐year‐old | 5‐year‐old | 10‐year‐old | |
---|---|---|---|---|---|---|---|
With alfalfa | |||||||
FRic | # | ↑ | 3.025 | 0.139 ± 0.011AB | 0.113 ± 0.012A | 0.199 ± 0.011C | 0.159 ± 0.010B |
FEve | n.s. | — | 0.611 | 0.576 ± 0.018 | 0.540 ± 0.033 | 0.521 ± 0.019 | 0.518 ± 0.020 |
FDiv | # | ↑ | 3.728 | 0.587 ± 0.034A | 0.642 ± 0.038A | 0.663 ± 0.024A | 0.817 ± 0.018B |
Without alfalfa | |||||||
FRic | # | ↑ | 3.100 | 0.135 ± 0.012AB | 0.114 ± 0.012A | 0.198 ± 0.011C | 0.159 ± 0.010B |
FEve | * | ↓ | 5.198 | 0.744 ± 0.018B | 0.695 ± 0.026B | 0.564 ± 0.019A | 0.529 ± 0.021A |
FDiv | ** | ↑ | 10.959 | 0.745 ± 0.02A | 0.707 ± 0.017A | 0.852 ± 0.016B | 0.838 ± 0.017B |
Trends denote the direction of changes during the succession. The means and SEs of indices were given in the table. The different superscripted letters indicate significant differences obtained with Tukey's test (p < .05), letter “A” signs the lowest value in every case. Notations: n.s.: nonsignificant; #: marginally significant (.05 < p < .1); *.01 < p ≤ .05; **.001 < p ≤ .01; —: no obvious trend; ↑: increasing during the succession; ↓: decreasing during the succession.