Table 1 Kolmogorov-Smirnov (KS) test (P > 0.05) of the DBH distribution based on the two-parameter Weibull function on 17 tree species in the forest region of Northeast China
Species | Number of samples passing the KS test | Total number of samples | Agreement (%) |
|---|---|---|---|
White birch (B. platyphylla Suk.) | 306 | 329 | 93.01 |
Larch (L. gmelinii (Rupr.) Kuzen) | 270 | 319 | 84.64 |
Mongolian oak (Q. mongolica Fisch. ex Ledeb.) | 91 | 112 | 81.25 |
Aspen (P. davidiana Dode) | 94 | 106 | 88.68 |
Basswood (T. amurensis Rupr.) | 160 | 167 | 95.81 |
Black birch (B. davurica Pall.) | 30 | 32 | 93.75 |
Scotch pine (P. sylvestris var. mongolica Litv.) | 61 | 73 | 83.56 |
Mono maple (A. mono Maxim.) | 112 | 116 | 96.55 |
Elm (U. pumila L.) | 97 | 102 | 95.10 |
Walnut (J. mandshurica Maxim.) | 52 | 55 | 94.55 |
Spruce (P. koraiensis Nakai) | 95 | 112 | 84.82 |
Korean pine (P. koraiensis Sieb.et Zucc.) | 103 | 110 | 93.64 |
Ash (F. mandschurica Rupr.) | 54 | 60 | 90.00 |
Ribbed birch (B. costata Trautv.) | 81 | 85 | 95.29 |
Fir (A. nephrolepis (Trautv.) Maxim.) | 112 | 115 | 97.39 |
Amur corktree (P. amurense Rupr.) | 60 | 68 | 88.24 |
Willow (C. arbutifolia (Pall.) A. Skv.) | 25 | 30 | 83.33 |