Evaluation of GPR surveys for assessment of trees condition in urbanized areasbanized areas

Authors

  • Ewelina Mazurek AGH University of Science and Technology, Faculty of Geology, Geophysics and Environmental Protection, A. Mickiewicza 30 Ave., 30-059 Krakow, Poland
  • Mikołaj Łyskowski AGH University of Science and Technology, Faculty of Geology, Geophysics and Environmental Protection, A. Mickiewicza 30 Ave., 30-059 Krakow, Poland

DOI:

https://doi.org/10.7494/geol.2014.40.3.291

Keywords:

GPR, tree, EM wave, forest management

Abstract

Modern measuring equipment is sometimes used for applications, for which it has not been originally designed. For example Ground Penetrating Radar (GPR), designed for subsurface structures analysis, can be used for tree tomography. Radar utilizes the phenomenon of propagation of the electromagnetic waves in a physical medium. Measurements can be carried out in situ, in a non-invasive manner on a living tree. Collected data allow for the tree condition determination. It is possible to detect voids and internal structure. Geophysical investigations can provide an estimation of the risk of falling of the trees. These methods also allow determination of the production quality of the tree by detecting knots inside the structure. Available literature shows only limited examples of the usage of other geophysical surveys, such as the ultrasound and geoelectrical method. However, in many cases these measurements are performed on samples in the form of profiles cut from the felled trees. Presented study was conducted on a set of 8 ash trees growing in the Krakow city parks. The measurement was carried out with high frequency antenna – 1600 MHz. Due to the lack of available literature and limited experience of the authors, only trees with known condition were tested. Despite many attempts, the authors were not able to developed a reliable measurement methodology which would allow for unambiguous classification and interpretation of results. In most cases, the results of the study permitted determination of the trees condition. However, some echograms, of the surveyed trees with visible voids pointed to a different tree state and misclassification. Despite that, the research results seem to be promising and the authors believe in the usefulness of the further development of measurement method along with its extension to other trees species.

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Author Biographies

Ewelina Mazurek, AGH University of Science and Technology, Faculty of Geology, Geophysics and Environmental Protection, A. Mickiewicza 30 Ave., 30-059 Krakow, Poland

Department of Geophysics

PhD student

Mikołaj Łyskowski, AGH University of Science and Technology, Faculty of Geology, Geophysics and Environmental Protection, A. Mickiewicza 30 Ave., 30-059 Krakow, Poland

Department of Geophysics

PhD student

References

Annan A.P., 2001. Ground Penetrating Radar Workshop Notes. Sensors & Software Inc., Ontario – Canada.

Barton C.V.M. & Montagu K.D., 2004. Detection of tree roots and determination of root diameters by ground penetrating radar under optimal conditions. Tree Physiology, 24, 1323–1331.

Butnor J.R., Pruyn M.L., Shaw D.C., Harmon M.E., Mucciardi A.N. & Ryan M.G., 2009. Detecting defects in conifers with ground penetrating radar: applications and challenges. Forest Pathology, 39, 309–322, [on-line:] http:// www.srs.fs.usda.gov/pubs/ja/ja_butnor013.pdf.

Cermak J., Hruska J., Martinkova M. & Prax A., 2000. Urban tree root systems and their survival near houses analyzed using ground penetrating radar and sap flow techniques. Plant and Soil, 219, 103–116.

Karczewski J., Ortyl Ł. & Pasternak M. 2011. Zarys metody georadarowej (wydanie drugie poprawione i rozszerzone). Wydawnictwa AGH, Kraków.

Lorenzo H., Perez-Gracia V., Novo A. & Armesto J., 2010. Forestry applications of ground-penetrating radar. Forest Systems, 19(1), 5–17, [on-line:] http://www.inia.es/GCONTREC/PUB/005-017_Forestry_1270811605765.pdf.

Mazurek E. & Łyskowski M., 2014. GPR based analysis in building land suitability evaluation. Logistyka, 6, 4665–4672.

Mazurek E. & Łyskowski M., 2012. Practical application of a high resolution ground penetrating radar method inside of buildings. Geology, Geophysics and Environment, 38(4), 439–448, [on-line:] http://journals.bg.agh.edu.pl/ GEOLOGY/2012.38.4/geol.2012.38.4.439.pdf.

Łyskowski M. & Mazurek E., 2013. Analiza konsekwencji doboru nieodpowiedniej prędkości propagacji fali elektromagnetycznej w trakcie interpretacji inżynierskich pomiarów metodą georadarową. Logistyka, 4, 330–336.

Nicolotti G., Socco L.V., Martinis R,. Godio A. & Sambuelli L., 2003. Application and comparison of three tomographic techniques for detection of decay in trees. Journal of Arboriculture, 29(2), 66–78, [on-line:] http://porto. polito.it/1400534/1/2003%20NICOLOTTI%20ET%20 AL%20Journ%20of%20Arboric%2066-78.pdf.

ReflexW Manual, 2009. User Guide. SandmeierGeo, Karlsruhe, Germany.

Reynolds J.M., 1997. An Introduction to Applied and Environmental Geophysics. John Wiley & Sons Ltd., England.

Simpson W. & Tenwolde A., 1999. Physical properties and moisture relations of wood. [in:] Wood handbook: wood as a engeneering material, USDA Forest Service, Forest Products Laboratory, Madison, 3.1–3.24.

TANEL, Zakład Elektroniczny, 2006. Wilgotnościomierze elektroniczne do drewna. dr inż. Krzysztof Tannenberg, [on-line:] http://www.tanel.com.pl/download/art_tanel.pdf.

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Published

2015-05-18

How to Cite

Mazurek, E., & Łyskowski, M. (2015). Evaluation of GPR surveys for assessment of trees condition in urbanized areasbanized areas. Geology, Geophysics and Environment, 40(3), 291. https://doi.org/10.7494/geol.2014.40.3.291

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