Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/161413
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dc.contributor.authorBi, Yu-Zhangen_US
dc.contributor.authorFu, Xianleien_US
dc.contributor.authorZhou, Shi-Jien_US
dc.contributor.authorNi, Jinen_US
dc.contributor.authorDu, Yan-Junen_US
dc.date.accessioned2022-08-31T03:09:40Z-
dc.date.available2022-08-31T03:09:40Z-
dc.date.issued2022-
dc.identifier.citationBi, Y., Fu, X., Zhou, S., Ni, J. & Du, Y. (2022). Field investigation of effect of plants on cracks of compacted clay covers at a contaminated site. International Journal of Environmental Research and Public Health, 19(12), 7248-. https://dx.doi.org/10.3390/ijerph19127248en_US
dc.identifier.issn1661-7827en_US
dc.identifier.urihttps://hdl.handle.net/10356/161413-
dc.description.abstractCompacted clay covers (CCCs) are effective in restricting the upward migration of volatile organic compound (VOC) and semi-volatile organic compound (SVOC) vapors released mainly from unsaturated contaminated soils and hence mitigate the risks to human health. Desiccation cracking of CCCs would result in numerous preferential channels. VOC or SVOC vapors can prefereially migrate through the cracks and emit into the atmosphere, exposing threats to human health and surrounding environmental acceptors. This study presented results of comprehensive field investigation of desiccation crack distribution in CCCs, where four herbaceous plants were covered at the industrial contaminated site in. The plants included Trefoil, Bermuda grass, Conyza Canadensis, and Paspalum, and the corresponding planting areas were labeled as S1, S2, S3, and S4, respectively. The quantity and geometry parameters of the cracks including crack width, depth, and length, were investigated. The results showed that the cracks of the CCCs were mainly distributed in the areas of S3 (Conyza Canadensis) and S4 (Paspalum), where more cracks were formed when the degree of compaction (DOC) of the CCCs was less than 87%. In addition, the results revealed that: (1) no cracks were found in the area S1 (Trefoil); (2) the quantity, average width, average depth, average length, and maximal length of the cracks in the investigated areas followed S4 (Paspalum) > S3 (Conyza Canadensis) > S2 (Bermuda grass); (3) the maximal crack length in the area S2 (Bermuda grass) was the shortest, which was approximately one-seventh and one-eighth of those in the areas S3 (Conyza Canadensis) and S4 (Paspalum), respectively; and (4) the maximal width and depth of the cracks followed S3 (Conyza Canadensis) > S4 (Paspalum) > S2 (Bermuda grass).en_US
dc.language.isoenen_US
dc.relation.ispartofInternational Journal of Environmental Research and Public Healthen_US
dc.rights© 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/).en_US
dc.subjectEngineering::Civil engineeringen_US
dc.titleField investigation of effect of plants on cracks of compacted clay covers at a contaminated siteen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Civil and Environmental Engineeringen_US
dc.identifier.doi10.3390/ijerph19127248-
dc.description.versionPublished versionen_US
dc.identifier.pmid35742497-
dc.identifier.scopus2-s2.0-85131882698-
dc.identifier.issue12en_US
dc.identifier.volume19en_US
dc.identifier.spage7248en_US
dc.subject.keywordsContaminated Siteen_US
dc.subject.keywordsCompacted Clay Coveren_US
dc.description.acknowledgementThis study was financially supported by National Key Research and Development Program (Grant No. 2018YFC1803100), Jiangsu Province Key Research and Development Program of China (SBE2022740941), National Natural Science Foundation of China (Grant Nos. 41877248 and 42177133), Scientific Research Foundation of Graduate School of Southeast University (Grant No. YBJJ 1844), and Postgraduate Research & Practice Innovation Program of Jiangsu Province (Grant No. KYCX17_0130).en_US
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