摘要
古树是岁月里走来的绿色文物,承载深厚的文化内涵和历史底蕴,是自然历史进化过程中的瑰宝。古树根系健康状况对树木后期的保护与发展起到关键作用,选取不同立地条件下树龄为600 a与700 a的一级古树为研究对象,利用树木雷达检测系统,采用环状放线测量方式对古树根系进行无伤探测,得出树木直径不小于2 cm的粗根数量及分布情况。研究结果表明,在垂直方向上,古树的根系分布密度随深度的增加而先增加后减少,且集中分布在20~40 cm的区域。水平方向上,根系分布密度随着与根基距离的增加而减少,且根系分布密度最高处位于距离根基1 m处。硬质铺装和自然条件2种立地环境下,自然条件下的古树根系密度显著高于铺装压迫下的根系密度。结果显示采用树木雷达研究古树根系具有较强的可行性和合理性,为后期有针对性地对古树进行保护与复壮提供科学依据和参考。
Ancient trees are living cultural relics that embody rich historical and cultural heritage,representing irreplaceable ecological and historical value.Root system health plays a vital role in the conservation and long-term stability of ancient trees.This study selected first-class ancient Sophora trees aged 600 and 700 years under two site conditions and conducted non-destructive root detection using a tree radar system with circular transect measurements.Results show that vertically,coarse-root density(≥2 cm diameter)increases with depth before decreasing,with roots concentrated mainly in the 20~40 cm layer.Horizontally,root density decreases with increasing distance from the trunk,with the highest density occurring at approximately 1 m from the root collar.Between paved surfaces and natural soil conditions,root density under natural conditions was significantly higher than under hard paving.The results show that the application research of tree radar demonstrates strong feasibility and rationality in studies of ancient tree root systems,providing scientific evidence and reference for targeted conservation and rejuvenation of ancient trees.
作者
卢伟娜
刘怡芸
孙悦
夏爽
各如灿
李济菲
王旭东
LU Weina;LIU Yiyun;SUN Yue;XIA Shuang;GE Rucan;LI Jifei;WANG Xudong(Henan Vocational College of Agriculture,Zhengzhou 450000;North China University of Water Resources and Electric Power,Zhengzhou 450045)
出处
《林业勘查设计》
2026年第1期82-86,共5页
Forest Investigation Design
基金
河南省高校人文社会科学研究一般项目(ZZ2405ND16)。
关键词
根系分布
树木雷达
古树
粗根
Root distribution
Tree radar
Ancient trees
Coarse roots
