四个典型温带树种不同根序细根分解速率及其主要影响因素

顾伟平,刘瑞鹏,李兴欢,孙涛,张子嘉,昝鹏,温璐宁,马鹏宇,毛子军

Decomposition of different root branch orders and its dominant controlling factors in four temperate tree species

GU Wei-Ping,LIU Rui-Peng,LI Xing-Huan,SUN Tao,ZHANG Zi-Jia,ZAN Peng,WEN Lu-Ning,MA Peng-Yu,MAO Zi-Jun

表2 4个温带树种一级至四级根平均直径(平均值±标准误差)

Table 2 Mean root diameter from first-order to fourth-order roots of the four temperate tree species (mean ± SE)

树种 Tree species 根直径 Root diameter (mm) 一级 First-order 二级 Second-order 三级 Third-order 四级 Fourth-order 红松 Pinus koraiensis 0.29 ± 0.01 0.29 ± 0.02 0.53 ± 0.03 1.59 ± 0.12 落叶松 Larix gmelinii 0.26 ± 0.02 0.28 ± 0.01 0.46 ± 0.05 0.85 ± 0.09 水曲柳 Fraxinus mandschurica 0.34 ± 0.01 0.45 ± 0.01 0.55 ± 0.02 0.89 ± 0.07 白桦 Betula platyphylla 0.21 ± 0.01 0.26 ± 0.03 0.27 ± 0.06 0.43 ± 0.09