基于探地雷达技术的植物根系探测应用研究

Application Research of Plant Root Detection Based on GPR Technology

探地雷达作为一种无损的电磁波探测方法,在生物学植物根系体探测利用方面具备可行性,利用探地雷达对植物根系体进行综合探测,研究植物根系体的展布规律及范围。首先通过对植物根系体本身的电导率与周围土壤的电导率之间存在的差异性进行研究分析,对探地雷达技术在植物根系体探测异常识别电导率变化特征方面进行分析;其次通过探地雷达技术在实际野外环境中对三种不同树种植物根系体进行探测,研究不同树种类型的植物根系体与周围土壤之间电导率异常变化及电磁波谱的变化;最后结合实际工程项目探测成果对植物根系体进行形态延展影响范围、根径大小的探测计算,总结探地雷达在植物根系体探测和保护方面的可适用性。

GPR as a lossless electromagnetic wave detection method is feasible to detect and utilize plant root system in biology,and GPR is used to detect the root system of plant and to get the distribution and range of plant root system.Firstly,the difference between the conductivity of plant root body and the conductivity of surrounding soil is analyzed,and GPR is used to analyze the variation characteristics of electrical conductivity in detecting the plant root system.Secondly,by using the GPR technology to detect three different species of plant root body in the actual field environment,the variations of electrical conductivity and electromagnetic spectrum between plant root body and surrounding soil are studied.Fi-nally,combined with actual detection results of engineering project,the morphological extension and root diameter of plant root system are calculated to summarize the applicability of ground penetrating radar in plant root detection and protection.