globalchange  > 过去全球变化的重建
DOI: 10.1016/j.marpolbul.2017.10.095
Scopus记录号: 2-s2.0-85033556434
论文题名:
Bioavailability and geochemical speciation of phosphorus in surface sediments of the Southern Caspian Sea
作者: Bastami K.D.; Neyestani M.R.; Raeisi H.; Shafeian E.; Baniamam M.; Shirzadi A.; Esmaeilzadeh M.; Mozaffari S.; Shahrokhi B.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2018
卷: 126
起始页码: 51
结束页码: 57
语种: 英语
英文关键词: Bioavailability ; Caspian Sea ; Phosphorus ; Surface sediment
Scopus关键词: Biochemistry ; Iron compounds ; Sediments ; Surficial sediments ; Bioavailability ; Bioavailable phosphorus ; Caspian sea ; Geochemical speciation ; Inorganic phosphorus ; Sequential extraction procedure ; Southern Caspian Sea ; Surface sediments ; Phosphorus ; authigenic phosphorus ; detrital phosphorus ; iron bound phosphorus ; organophosphorus compound ; phosphate ; phosphorus ; phosphorus derivative ; unclassified drug ; autumn ; bioavailability ; concentration (composition) ; geochemistry ; inorganic phosphorus ; marine sediment ; organic phosphorus ; sediment pollution ; sequential extraction ; Article ; autumn ; bioavailability ; chemical parameters ; classification ; concentration (parameters) ; controlled study ; extraction ; geochemical speciation ; geochemistry ; geographic distribution ; molar ratio ; quantitative analysis ; sea ; sediment ; sequential extraction ; surface sediment ; total organic carbon ; trend study ; Caspian Sea
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science ; Earth and Planetary Sciences: Oceanography ; Environmental Science: Pollution
英文摘要: The purpose of this study was to quantify phosphorus bioavailability and various forms of this element in surface sediments of the southern Caspian Sea. To do, sediment samples were collected from different depths in autumn 2015 using a Van Veen Grab. Phosphorus forms were recognized by a sequential extraction procedure (SEDEX). Results revealed that the range of total phosphorus (TP) was between 431 ppm and 594 ppm with a mean value of 535.25 ± 45.05 ppm. Organic phosphorus (OP) ranged from 62 to 99 ppm and contributed 14.85 ± 2.21% of total phosphorus in average. The contents of loosely phosphorus, iron-bound phosphorus, authigenic phosphorus and detrital phosphorus varied 35–55 ppm, 50–94 ppm, 125–189 ppm and 152–217 ppm, respectively. Generally, inorganic phosphorus (IP) was between 365 and 522 ppm which comprised 81.9–88.53% of total phosphorus. Findings showed levels of different phosphorus forms in a descending order: detrital P > Authigenic P > Organic P > Fe-P > Loosely P. Bioavailable phosphorus concentration was between 153 ppm and 240 ppm and consisted 37.21 ± 3% of total phosphorus. Based on molar ratio of TOC/OP, organic matter obtained from the studied stations suggested a terrestrial origin. © 2017
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/88559
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: Iranian National Institute for Oceanography and Atmospheric Science (INIOAS), No. 3, Etemadzadeh St., Fatemi Ave., Tehran, Iran; Department of Chemistry, Faculty of Science, University of Zanjan, Zanjan, Iran; Department of Fisheries, Faculty of Agriculture and Natural Resources, Gonbad Kavoos University, Gonbad Kavoos, Iran; Department of Marine Science and Technology, Islamic Azad University, Tehran, Iran; Novin Shimyar Chemical Laboratory, P.O. Box 14589-3699, Tehran, Iran; Department of Environmental Science, Faculty of Environment and Energy, Science and Research Branch, Islamic Azad University, Tehran, Iran; Department of Chemistry, Payame Noor University, P.O. Box 19395-3697, Tehran, Iran; Chemical Engineering Department, Faculty of Engineering, Shomal University, PO Box 731, Amol, Mazandaran, Iran

Recommended Citation:
Bastami K.D.,Neyestani M.R.,Raeisi H.,et al. Bioavailability and geochemical speciation of phosphorus in surface sediments of the Southern Caspian Sea[J]. Marine Pollution Bulletin,2018-01-01,126
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