油松人工林火烧迹地早期土壤入渗动态

秦倩倩, 邱聪, 郑大柽, 刘艳红

Soil infiltration dynamics in early period of a post-fire Pinus tabulaeformis plantation

QIN Qian-Qian, QIU Cong, ZHENG Da-Cheng, LIU Yan-Hong

表2 油松人工林土壤入渗特征的三因素方差分析

Table 2 Three-way ANOVA analysis of soil infiltration characteristics in a Pinus tabulaeformis plantation

指标 Index 火烧干扰 Fire disturbance (df = 1) 土壤深度 Soil depth (df = 3) 时间 Time (df = 7) 火烧 × 深度 Fire × Depth (df = 3) 火烧 × 时间 Fire × Time (df = 7) 深度 × 时间 Depth × Time (df = 21) 火烧 × 深度 × 时间 Fire × Depth × Time (df = 21) 初渗速率 Initial infiltration rate (mm·min-1) 2.10 0.22 8.93*** 0.75 1.05 0.49 0.38 稳渗速率 Steady infiltration rate (mm·min-1) 0.06 0.69 8.37*** 0.25 2.70* 0.43 0.60 入渗总量 Cumulative-infiltration volume (mm) 0.28 0.62 8.93*** 0.36 2.06 0.48 0.55 饱和导水率 Saturated hydraulic conductivity (mm·min-1) 0.51 0.38 9.31*** 0.49 1.67 0.43 0.47