关于9种绿化树种林冠雨水截留量的研究

Canopy Rainfall Interception of Mine Landscaping Tree Species by Zhengzhou Botanical Garden

以郑州植物园园区内的9种绿化树种为对象,调查标准木的树龄、高度、胸径、冠幅等数据,对林地内外的降雨量进行分析,建立回归方程.结果表明,不同树种的林冠截留量和截留率不同,不同次降雨林冠的截留率存在较大差距,9个树种林冠截留率从高到低依次为枇杷、龙柏、女贞、白蜡、法桐、黑松、红叶李、国槐、雪松;林内穿透雨量与林外降雨呈正相关,林内降雨量随林外降雨量的变化而变化,并且变化趋势是一致的.

Based on the nine kinds of greening tree species in Zhengzhou botanical garden？the tree-age, height, DBHj and crown diameter of model tree were surveyed. We analyzed the precipitation rainfall capacity and established the regression curve equation. Results indicated that both the canopy interception and retention rate were different among trees. Retention rate existed a large gap among different rain canopy. Nine species of forest canopy interception rate from high to the end were loquat, cypress, privet, ash, platane,black pine, cerasifera,Sophora japonica, cedar. There was a positive correlation between the throughfall inside forest and rainfall outside forest.