DOI: 10.1016/j.marpolbul.2016.06.004
Scopus记录号: 2-s2.0-84992337617
论文题名: Effect of root exudates on sorption, desorption, and transport of phenanthrene in mangrove sediments
作者: Jia H. ; Lu H. ; Dai M. ; Hong H. ; Liu J. ; Yan C.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2016
卷: 109, 期: 1 起始页码: 171
结束页码: 177
语种: 英语
英文关键词: Desorption
; Mangrove sediments
; Mobility
; Phenanthrene
; Root exudates
; Sorption
Scopus关键词: acetic acid
; citric acid
; oxalic acid
; phenanthrene
; phenanthrene derivative
; plant exudate
; water pollutant
; adsorption
; analysis
; chemistry
; China
; metabolism
; molecular weight
; pharmacokinetics
; plant exudate
; plant root
; sediment
; water pollutant
; wetland
; Acetic Acid
; Adsorption
; China
; Citric Acid
; Geologic Sediments
; Molecular Weight
; Oxalic Acid
; Phenanthrenes
; Plant Exudates
; Plant Roots
; Water Pollutants, Chemical
; Wetlands
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: The effect of root exudates on the environmental behaviors of phenanthrene in mangrove sediments is poorly understood. In order to evaluate their influence, comprehensive laboratory experiments were performed using batch equilibrium and thin-layer chromatography (TLC) analyses. In the presence of root exudates, sorption of phenanthrene was inhibited, whereas desorption and mobility were promoted, and were elevated as root exudate concentrations increased. Among the three representative low molecular weight organic acids (LMWOAs) (citric, oxalic, and acetic acids), citric acid promoted desorption and mobility of phenanthrene more effectively than the other two. In addition, application of artificial root exudates (AREs) enhanced phenanthrene desorption, and mobility was always lower than that with the same concentration of LMWOAs, suggesting that LMWOAs predominantly affected the fate of phenanthrene in sediments. The results of this study could enhance our understanding of the mobility of persistent organic pollutants in sediment–water system. © 2016 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/86925
Appears in Collections: 过去全球变化的重建 全球变化的国际研究计划
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作者单位: Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen, China
Recommended Citation:
Jia H.,Lu H.,Dai M.,et al. Effect of root exudates on sorption, desorption, and transport of phenanthrene in mangrove sediments[J]. Marine Pollution Bulletin,2016-01-01,109(1)