The Application of Ground Penetrating Radar to Plant Root System Detection
Received date: 2008-12-22
Revised date: 2009-05-13
Online published: 2009-06-10
With the recognition of the important functions of roots in ecosystems, root-related parameters such as root size, biomass, distribution, structure and 3D architecture are urgently required for a better understanding of root functions, biogeochemical cycles, and various aspects of global change. Traditional methods for measuring roots are labor intensive and destructive in nature, limiting quantitative and repeated assessments in long-term research on roots. Ground-Penetrating Radar (GPR) offers a nondestructive measurement for plant roots. This article aims to introduce the GPR principles and to review the existing researches involved in the application of GPR to map plant root systems, measure root diameters and estimate root biomass. The results suggest that high antenna frequency and small profile grid is required in order to map root systems distribution with higher spatial resolution by GPR. Moreover, estimating root diameters and biomass with higher accuracy are mainly depended on feature extraction from GPR reflecting signals. Meanwhile, advanced data analysis and processing technique is also critical with urgent needs for practical applications. Although significant further works are needed, the GPR provides good potential to support plant root system detection and measure.
CUI Chi-Gong , CHEN Jin , GUAN Lin-Lin . The Application of Ground Penetrating Radar to Plant Root System Detection[J]. Advances in Earth Science, 2009 , 24(6) : 606 -611 . DOI: 10.11867/j.issn.1001-8166.2009.06.0606
[1] Gyssels G, Poesen J.The importance of plant root characteristics in controlling concentrated flow erosion rates[J].Earth Surface Processes and Landforms,2003,28:371-384.
[2] Jackson R B, Canadell J, Ehleringer J R,et al. A global analysis of root distributions for terrestrial biomes[J]. Oecologia,1996,108:389-411.
[3] Operstein V, Frydman S. The influence of vegetation on soil strength[J].Ground Improve,2000,4:81-89.
[4] Li Y, Xu X Q, Zhu X M,et al. Effectiveness of plant roots on increasing the soil permeability on the Loess plateau[J].Chinese Science Bulletin,1992,37:1 735-1 738.
[5] Gyssels G, Poesen J.The importance of plant root characteristics in controlling concentrated flow erosion rates[J].Earth Surface Processes and Landforms,2003 28:371-384.
[6] Mattia C, Bischetti G B, Gentile F .Biotechnical characteristics of root systems of typical Mediterranean species[J].Plant Soil,2005,278:23-32.
[7] Ivano Brunner, Douglas L,Godbold. Tree roots in a changing world[J].Journal of Forest Research,2007,12:78-82.
[8] Li Fengrui,Liu Jiliang. Hydraulic redistribution and its eco-hydrological effects in root-soil interfacial systems in arid regions[J].Advances in Earth Science,2008,23(7):698-706.[李锋瑞,刘继亮.干旱区根土界面水分再分配及其生态水文效应研究进展与展望[J].地球科学进展,2008,23(7):698-706.]
[9] Burrows W H, Hoffmann M B, Compton J F,et al. Allometric relationships and community biomass estimates for some dominant eucalypts in Central Queensland woodlands[J].Australian Journal of Botany,2000 ,48:707-714.
[10] Resh S C,Battaglia M, Worledge D,et al.Coarse root biomass for eucalypt plantations in Tasmania, Australia: Sources of variation and methods for assessment[J].Trees,2003,17:389-399.
[11] Ritson P, Sochacki S. Measurement and prediction of biomass and carbon content of Pinus pinaster trees in farm forestry plantations, south-western Australia[J].Forest Ecology and Management,2003,175:103-117.
[12] Bai Wenming, Cheng Weixin, Li Linghao. Applications of minirhizotron techniques to root ecology research[J].Acta Ecologica Sinica,2005,25(11):3 076-3 081.[白文明,程维信,李凌浩.微根窗技术及其在植物根系研究中的应用[J].生态学报,2005,25(11):3 076-3 081.]
[13] Zeng Zhaofa,Liu Sixin,Wang Zhejiang,et al.Theory and Application of Ground Penetrating Radar[M]. Beijing:China Sciences Press, 2006.[曾昭法,刘四新,王者江,等. 探地雷达方法原理及应用[M].北京:科学出版社,2006.]
[14] Li Daxin. Application of Ground Penetrating Radar[M]. Beijing:China Geologic Press, 1994:121.[李大心.探地雷达方法与应用[M]. 北京:地质出版社,1994:121.]
[15] Wang Huilian,Li Daxin. Ground penetrating radar course of impulse time region(serialise)[J].Foreign Geologic Reconnoissance Technology,1989,(10):26-31; (16):32-36;(12):33-39;1990,(1):34-40.[王惠濂,李大心.脉冲时间域探地雷达讲座(连载)[J].国外地质勘探技术,1989,(10):26-31;(16):32-36;(12):33-39;1990,(1):34-40.]
[16] Hruska J, Cermák J, Sustek A. Mapping tree root systems with ground-penetrating radar[J].Tree Physiology, 1999,19:125-130.
[17] Sustek S, Hruska J, Druckmuller M,et al. Root surfaces in the large oak tree estimated by image analysis of the map obtained by the ground penetrating radar[J].Journal of Forest Research,1999, 45:139-143.
[18] Cermak J, Hruska J, Martinkova M, et al. Urban tree root systems and their survival near houses analyzed using ground penetrating radar and sap flow techniques[J].Plant and Soil,2000,219(1/2):103-116.
[19] Wielopolski L, Hendrey G, McGuigan M. Imaging tree root systems in situ[C]//Proceedings of the Eight International Conference on Ground Penetrating Radar,May 23 to 26, 2000, Gold Coast, Queensland, Australia, 2000:642-646.
[20] Stokes A, Fourcaud T, Hruska J,et al.An evaluation of different methods to investigate root system architecture of urban trees in situ: 1. Ground penetrating radar[J].Journal of Arboriculture,2002,28(1): 2-9.
[21] Barton C V M , Montagu K D. Detection and determination of root diameter by ground-penetrating radar under optimal conditions[J].Tree Physiology,2004,24:1 323-1 331.
[22] Butnor J R, Doolittle J A, Kress L, et al.Johnsen. Use of ground-penetrating radar to study tree roots in the southeastern United States[J].Tree Physiology,2001,21:1 269-1 278.
[23] Butnor J R, Doolittle J A, Johnsen K H,et al. Utility of ground-penetrating radar as a root biomass survey tool in forest systems[J].Soil Science Society of America Journal,2003,67:1 607-1 615.
[24] Butnor J, Roth R, Johnsen K. Feasibility of using ground-penetrating radar to quantify root mass in Florida′s intensively managed pine plantations[R]. Forest Biology Research Cooperative Report Number 38. Gainesville, Florida, USA,2005.
[25] Daniel B S, Frank P D, Butnor J R,et al. Effect of elevated CO2 on coarse-root biomass in Florida scrub detected by ground-penetrating radar[J].Ecology,2007,88(5):1 328-1 334.
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