Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/30627
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dc.contributor.authorGao, Qiangshanen_UK
dc.contributor.authorWang, Shijieen_UK
dc.contributor.authorPeng, Taoen_UK
dc.contributor.authorPeng, Haijunen_UK
dc.contributor.authorOliver, David Men_UK
dc.date.accessioned2020-01-16T01:00:22Z-
dc.date.available2020-01-16T01:00:22Z-
dc.date.issued2020-09en_UK
dc.identifier.other107015en_UK
dc.identifier.urihttp://hdl.handle.net/1893/30627-
dc.description.abstractEpikarst, defined as the “skin” of karst environment, is widely developed in southwest China, largely as a result of the subtropical monsoon climate. Typical SW China karst accommodates a dual hydrogeological structure, with surface and subsurface hydrological systems. The epikarst ecosystem of karst environments plays a key role in biogeochemical cycling and energy and material storage and transport. Due to low rates of soil-formation derived from carbonate rock weathering, the soil layer is shallow and scattered, presenting interlocked features within carbonate rock. Research on epikarst structure is primarily based on section field survey with semi-quantitative characterization, often lacking a fully quantitative description of soil-rock structural characteristics. We utilized ground penetrating radar (GPR) attributes to interpret the structure of epikarst at a peak cluster depression in the Guizhou karst plateau. Two typical types of epikarst slope profiles and one peak cluster depression in Maguan Town, Puding County were selected for study. We used MALA GPR equipment with 500 MHz and 50 MHz antennas to acquire data. GPR data was processed conventionally and then average energy attributes, average amplitude attributes and coherence attributes were extracted to interpret the structure of the two epikarst profiles and the soil depth of the depression. The results show that: (i) energy and coherence attributes can highlight the soil-rock structure of the epikarst profiles with relative ease; (ii) compared to the original returned image, the energy attributes visualise the soil and rock medium more effectively; and (iii) the coherence attributes can identify the reflection interface between complete bedrock and bedrock containing fissure and grikes (epikarst). In addition, using the 50 MHz antenna we were able to determine the soil depth in depression with coherence attributes indicating a depth of 3.6 m, very close to the real depth (3.58 m) measured by our auger verification work. GPR attributes provide evidence that the epikarst has developed a large number of fissures filled with soil or other materials, but that the bedrock under the epikarst has few fractures. GPR attributes are therefore helpful for increasing our confidence of studying the structure of slope epikarst structure and depression soil depth.en_UK
dc.language.isoenen_UK
dc.publisherElsevier BVen_UK
dc.relationGao Q, Wang S, Peng T, Peng H & Oliver DM (2020) Evaluating the structure characteristics of epikarst at a typical peak cluster depression in Guizhou plateau area using ground penetrating radar attributes. Geomorphology, 364, Art. No.: 107015. https://doi.org/10.1016/j.geomorph.2019.107015en_UK
dc.rightsThis item has been embargoed for a period. During the embargo please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study. Accepted refereed manuscript of: Gao Q, Wang S, Peng T, Peng H & Oliver DM (2020) Evaluating the structure characteristics of epikarst at a typical peak cluster depression in Guizhou plateau area using ground penetrating radar attributes. Geomorphology, 364, Art. No.: 107015. https://doi.org/10.1016/j.geomorph.2019.107015 © 2019, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/en_UK
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/en_UK
dc.subjectEpikarsten_UK
dc.subjectKarst critical zoneen_UK
dc.subjectGround penetrating radar (GPR)en_UK
dc.subjectAttribute analysisen_UK
dc.titleEvaluating the structure characteristics of epikarst at a typical peak cluster depression in Guizhou plateau area using ground penetrating radar attributesen_UK
dc.typeJournal Articleen_UK
dc.rights.embargodate2021-01-08en_UK
dc.rights.embargoreason[Evaluating the structure characteristics of epikarst.pdf] Publisher requires embargo of 12 months after formal publication.en_UK
dc.identifier.doi10.1016/j.geomorph.2019.107015en_UK
dc.citation.jtitleGeomorphologyen_UK
dc.citation.issn1872-695Xen_UK
dc.citation.issn0169-555Xen_UK
dc.citation.volume364en_UK
dc.citation.publicationstatusPublisheden_UK
dc.citation.peerreviewedRefereeden_UK
dc.type.statusAM - Accepted Manuscripten_UK
dc.contributor.funderNational Natural Science Foundation of Chinaen_UK
dc.contributor.funderNational Natural Science Foundation of Chinaen_UK
dc.contributor.funderGuizhou Science and Technology Departmenten_UK
dc.contributor.funderInternational Partnership Projecten_UK
dc.contributor.funderNational Natural Science Foundation of Chinaen_UK
dc.contributor.funderNational Basic Research Program of China (973 Program)en_UK
dc.author.emaildavid.oliver@stir.ac.uken_UK
dc.citation.date07/01/2020en_UK
dc.contributor.affiliationChinese Academy of Sciencesen_UK
dc.contributor.affiliationChinese Academy of Sciencesen_UK
dc.contributor.affiliationChinese Academy of Sciencesen_UK
dc.contributor.affiliationChinese Academy of Sciencesen_UK
dc.contributor.affiliationBiological and Environmental Sciencesen_UK
dc.identifier.isiWOS:000540373900001en_UK
dc.identifier.scopusid2-s2.0-85084853843en_UK
dc.identifier.wtid1507903en_UK
dc.contributor.orcid0000-0002-8630-0789en_UK
dc.contributor.orcid0000-0002-2341-3882en_UK
dc.contributor.orcid0000-0002-6200-562Xen_UK
dc.date.accepted2019-12-17en_UK
dc.date.filedepositdate2020-01-15en_UK
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