通过穿透降雨和树干径流自动采集系统,对油松、侧柏、刺槐三种植被截留实验数据进行了分析。结果表明,三种植被林内穿透降雨与林外天然降雨都具极显著的正相关线性关系,林冠截留量与林外降雨量呈幂函数关系,平均截留率大小关系为油松>侧柏>刺槐。相同林外降雨量下产生的树干径流量大小关系为刺槐>侧柏>油松。 The experiment data of the interception of Pinus tabulaeformis, Platycladus orientalis and Robinia pseudoacacia were analyzed by penetrating rainfall and automatic trunk flow collecting system. The results showed that there was a significant positive linear relationship between rainfall penetration and natural rainfall in the three forests. The relationship between canopy interception and rainfall outside the forest showed a power function relationship. The average interception rate was Pinus tabulaeformis> locust. The results showed that the relationship between trunk runoff and rainfall under the same forest was Robinia pseudoacacia> Platycladus orientalis> Pinus tabulaeformis.