城市环境中雷达探测植物根系技术的应用研究  

Application of Radar Detecting Plant Roots in Urban Environment

作　　者：李瑜凯 尹豪[1,2] LI Yukai;YIN Hao(School of Landscape Architecture,Beijing Forestry University,Beijing 100083;Beijing Laboratory for Urban and Rural Ecological Environment,Beijing Forestry University,Beijing 100083)

机构地区：[1]北京林业大学园林学院,北京100083 [2]北京林业大学城乡生态环境北京实验室,北京100083

出　　处：《中国园林》2025年第4期116-122,共7页Chinese Landscape Architecture

基　　金：北京林业大学热点追踪项目(2022BLRD05);北京市共建项目(2019GJ-03)。

摘　　要：探地雷达作为一项非破坏性技术,在植物根系探测工作中表现出巨大潜力。目前雷达探根方面的研究集中在野外和人工实验环境中,几乎没有在城市环境中进行根系探测的探索与实践。在总结现有的雷达探根实验与实践的基础上,设计根系探测实验,通过研究城市行道树根系的生长环境特征与根系的分布特征,验证城市环境中雷达探根技术的应用方法、可行性以及可靠性。实验表明,雷达探根技术在城市地下环境中的应用具有诸多优势,行道树根系集中分布在0~40 cm深度范围的探测结果符合树木根系分布的基本特征,该技术具有较高的可行性。识别率与深度判定准确率的提升是提高其可靠性的关键,仍需加以验证。Ground-penetrating radar(GPR)has emerged as a highly promising non-destructive technology in the field of plant root system detection.Its ability to provide detailed information about root structures without causing damage to the plants or surrounding environment has positioned it as a valuable tool for ecological and urban studies.However,current research on GPR-based root detection is predominantly focused on natural field settings and controlled laboratory environments.Surprisingly,there is a significant gap in the exploration and application of this technology in urban environments,where understanding the root systems of urban trees is crucial for urban planning,infrastructure management,and ecological sustainability.This study aims to bridge this gap by conducting root detection experiments in urban settings.Building on the existing body of research on GPR-based root detection,we selected two major streets in Beijing,Chengfu Road and Zhongguancun North Street,as the study sites.Through a detailed investigation of the growth environment and distribution characteristics of street tree roots,it aimed to validate the application methods,feasibility,and reliability of GPR technology in urban environments.The study involved 10 sample groups from Chengfu Road and Zhongguancun North Street.The results of the root detection experiments revealed several interesting patterns.In the horizontal direction,the distribution of street tree roots showed no clear regularity,indicating a complex and variable root system influenced by various urban environmental factors.In the vertical direction,the roots were predominantly concentrated within the depth range of 0-40 cm,with fewer roots detected at depths of 40-60 cm.This finding aligns well with the general characteristics of tree root distribution,which typically favors shallower depths for nutrient and water uptake.Furthermore,the study compared the root distribution density under two different types of road surfaces:concrete pavers and asphalt.The results showed that the roo

关 键 词：园林植物 植物根系 探地雷达 城市环境 行道树 

分 类 号：S688[农业科学—观赏园艺]