重庆市三条主干路黄葛树根系分布与安全风险研究

Research on Root Distribution and Safety Risk of Ficus virens in Three MainRoads of Chongqing

为了解重庆市树黄葛树的根系分布和安全风险,采用TRU树木雷达检测系统,对作为行道树的黄葛树根系进行无损检测。通过根系分布情况,结合立地环境定性判断其存在的安全风险,旨在指导后期的风险防范和管护工作。结果显示:3个样段的黄葛树直径≥3 cm的粗根在纵向分布上随着土壤深度的增加距树干不同距离处根数呈逐渐增加趋势;在横向分布上,X1和X2样段的黄葛树直径≥3 cm的粗根随着距树距离的增大呈逐渐增加趋势,而X3样段则呈先增加后减少的趋势。同时,通过根系分布规律发现根系分布状况是影响树木安全的主要因子。

In order to understand the root distribution and safety risk of Ficus virens in Chongqing,this study uses the TRU tree radar detection system to conduct non-destructive detection root system of the Ficus virens as a sidewalk tree.Through its root distribution,combined with the establishment of the ground environment to judge the safety risks of its existence,it aims to guide the later period risk prevention and management.The results show that Ficus virens≥3cm root on the vertical distribution of the root system is gradually increasing with increase of the soil depth;In the horizontal distribution,the Ficus virens≥3cm root in the X1 and X2-like segments is gradually increasing with the increase of the distance from the tree.However,X3 sample segment showed a trend of first increasing and then decreasing.At the same time,the root distribution is the main factor that affects the safety of the trees.