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首页> 外文期刊>Journal of Arboriculture >An evaluation of different methods to investigate root system architecture of urban trees in situ: I. Ground-penetrating radar.
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An evaluation of different methods to investigate root system architecture of urban trees in situ: I. Ground-penetrating radar.

机译：对调查城市树木根系体系结构的不同方法的评估：I.探地雷达。

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摘要

To evaluate the efficiency of ground-penetrating radar (GPR) to map root systems of urban trees in situ, this technique was tested on three trees (one Pinus nigra and two Sorbus intermedia) in an urban environment in Czech Republic. After carrying out the extremely rapid GPR tests around the bases of the sample trees, root systems were excavated with an air spade, which produces a supersonic jet of air used to remove soil from roots. Photographs were taken of root system transects for comparison with GPR images. Root system architecture was then quantified for one pine tree, and a two-dimensional image of the root system was reconstructed using AMAPmod software. A comparison of actual roots with images hand drawn from the GPR data showed that thetechnique is reliable for mapping large roots in the horizontal plane only. Most errors in data from the GPR method were induced when the root systems were manually redrawn, and from roots running parallel to the electromagnetic signal in the vertical plane. These roots could not be identified by GPR. The GPR technique could be considered a valuable nondestructive tool for the arborist, but it still needs development, especially with regard to a software that could reconstruct 3D images of root system architecture from raw data.
机译：为了评估探地雷达（GPR）现场绘制城市树木根系的效率，该技术在捷克共和国的城市环境中的三棵树（一棵黑松和两棵花or）上进行了测试。在样品树的根部进行了非常快速的GPR测试后，用气铲开挖了根系，这产生了超音速的空气射流，用于去除根部的土壤。拍摄了根系样条的照片，以便与GPR图像进行比较。然后针对一棵松树对根系统体系结构进行了量化，并使用AMAPmod软件重建了根系的二维图像。将实际根与从GPR数据中绘制的图像进行比较，结果表明该技术仅在水平面上绘制大根是可靠的。当手动重绘根系时，以及平行于垂直平面中电磁信号的根系，都会引起GPR方法数据中的大多数错误。 GPR无法识别这些根源。 GPR技术可以被认为是树艺师的有价值的非破坏性工具，但是它仍然需要开发，尤其是可以从原始数据重建根系统架构的3D图像的软件方面。

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