基于树木雷达技术的行道树粗根分布特征研究——以郑州市龙子湖高校园区为例  

A Study of the Distribution Characteristics of Thick Roots of Street Trees Using Tree Radar Technology:A Case Study of Longzihu University Region in Zhengzhou City

作　　者：夏爽 卢伟娜[2] 刘怡芸 孙悦 各如灿 李济菲 王旭东 XIA Shuang;LU Weina;LIU Yiyun;SUN Yue;GE Rucan;LI Jifei;WANG Xudong(School of Architecture,North China University of Water Resources and Electric Power,Zhengzhou,Henan,China,450046;School of Horticulture and Landscape Architecture,Henan Vocational College of Agriculture,Zhengzhou,Henan,China,451450)

机构地区：[1]华北水利水电大学建筑学院,郑州450046 [2]河南农业职业学院园艺园林学院,郑州451450

出　　处：《园林》2025年第3期132-138,共7页Landscape Architecture Academic Journal

摘　　要：研究城市行道树地下根系的分布特征及其影响因素,为行道树的良好生长和养护管理提供科学依据和数据支撑。以郑州市龙子湖高校园区道路上的8种主要乔木行道树种为研究对象,利用树木雷达检测系统对行道树根系的分布特征进行分析与总结。同时,测定土壤的含水量、紧实度、土温三项物理指标,试图探究影响根系分布的土壤物理因素。研究结果表明,(1)在水平方向上,行道树根系密度在三条扫描半径上分布比较平均;在垂直方向上,行道树根系密度主要分布在20~40 cm处。(2)不同树种之间根系分布差异较大。(3)树木粗根密度与土壤含水量呈显著正相关关系,与土壤紧实度呈显著负相关关系。在城市道路条件下行道树的根系分布较浅,这不仅与城市的特殊环境有关,且与土壤的含水量和紧实度存在一定的关系。The distribution characteristics and factors infl uencing the underground roots of urban street trees were studied to provide a scientific basis and data support for the healthy growth and maintenance management of these trees.Eight main tree species along the roads of Longzihu University Park in Zhengzhou were selected as the research subjects.The distribution characteristics of the root systems of the street trees were analyzed and summarized using a tree radar detection system.Additionally,three physical soil indexes,water content,compactness,and soil temperature,were measured to explore the physical soil factors affecting root distribution.The results indicate that:(1)In the horizontal direction,the root density of street trees is evenly distributed across the three scanning radii;in the vertical direction,the root density is primarily concentrated at depths of 20~40 cm.(2)There are signifi cant differences in root distribution among various tree species.(3)The density of thick roots shows a signifi cant positive correlation with soil water content and a signifi cant negative correlation with soil compactness.In urban road environments,the root distribution of street trees is shallow,which is infl uenced not only by the unique urban environment but also by soil water content and compactness.

关 键 词：树木雷达 粗根 空间分布 土壤物理性质 

分 类 号：TU986[建筑科学—城市规划与设计]