基于根系发育分级的砂壤土下成熟林木根系构型分析

祝维,余立璇,赵德海,贾黎明

Architectural analysis of root systems of mature trees in sandy loam soils using the root development classification

ZHU Wei,YU Li-Xuan,ZHAO De-Hai,JIA Li-Ming

表3 毛白杨及刺槐3个根系系统拓扑指标参数

Table 3 The values of the topological indices for three root systems

根系系统 Root system a (A) Pe V0 (M) b qa qb TI 纯林毛白杨 Populus tomentosa in pure forest 29 8 367 793 10.551 0.02 -0.000 2 0.50 混交林毛白杨 P. tomentosa in mixed forest 61 21 322 1 456 14.644 0.03 0.004 0 0.56 混交林刺槐 Robinia pseudoacacia in mixed forest 21 3 990 465 8.581 0.02 -0.006 0 0.50