长白山不同演替阶段针阔混交林群落物种多度分布格局

闫琰, 张春雨, 赵秀海

Species-abundance distribution patterns at different successional stages of conifer and broad-leaved mixed forest communities in Changbai Mountains, China

YAN Yan, ZHANG Chun-Yu, ZHAO Xiu-Hai

表2 不同取样尺度下次生杨桦林5种模型拟合的优度检验和中性模型参数

Table 2 Goodness of fit test of five models and parameters of neutral model at different sampling scales in secondary Populus davidiana-Betula platyphylla forest

取样尺度 Sampling scale θ m 检验方法 Test method NT LN ZM BS NP 10 m × 10 m 3.90 0.05 AIC 12.33 -12.09 -1.11 2.62 -1.57 D 0.30 0.10 0.10 0.10 0.10 χ2 2.79 0.50 1.79 1.75 0.59 30 m × 30 m 4.94 0.01 AIC 19.25 57.29 85.65 102.48 75.24 D 0.09 0.09 0.27 0.23 0.05 χ2 2.62 7.39 32.22 62.71** 11.14 60 m × 60 m 5.16 1.66×10-3 AIC -56.45 173.78 201.38 223.02 173.69 D 0.03 0.10 0.40* 0.30 0.10 χ2 0.04 58.47** 199.78** 437.61** 47.24* 90 m × 90 m 5.45 7.46×10-4 AIC -100.05 266.41 297.52 332.30 274.31 D 0.03 0.14 0.44** 0.33* 0.11 χ2 0.00 169.44** 537.44** 1473.27** 152.41**