Distribution of organic phosphorus species in sediment profiles of shallow lakes and its effect on photo-release of phosphate during sediment resuspension | |
Li, Xiaolu1; Guo, Minli1; Duan, Xiaodi2; Zhao, Jianwei1; Hua, Yumei1; Zhou, Yiyong3; Liu, Guanglong1,2; Dionysiou, Dionysios D.2 | |
刊名 | ENVIRONMENT INTERNATIONAL |
2019-09-01 | |
卷号 | 130期号:1页码:9 |
关键词 | Sediment Organic phosphorus Photo-release P-31 NMR Phosphate |
ISSN号 | 0160-4120 |
DOI | 10.1016/j.envint.2019.104916 |
英文摘要 | In this work, the distribution of organic phosphorus (P-o) species in sediment profiles of five shallow lakes was analyzed and its effect on the photo-release of dissolved phosphate (P-i) was investigated during sediment resuspension under simulated sunlight irradiation. The results show that P-o was highly enriched in the surface sediment and gradually decreased as sediment depths increased: 33.10 +/- 2.55-96.71 +/- 7.60 mg/kg, 33.55 +/- 2.34-142.86 +/- 5.73 mg/kg, 57.50 +/- 3.46-149.68 +/- 7.67 mg/kg, 55.18 +/- 4.67-168.73 +/- 8.31 mg/kg, 98.75 +/- 7.56-275.74 +/- 10.70 mg/kg for Lake Hou, Lake Tuan, Lake Tangling, Lake Guozheng and Lake Miao, respectively. The photo-release amount of dissolved P-i in the resuspension composed of surface sediments was also higher than that of deep sediment during sediment resuspension under the simulated sunlight irradiation for 9 h. The potential reasons for these results are: (1) difference in morphology and composition of sediments at different depths: the mean particle size of sediment decreased first and then increased as sediment depths increased; (2) difference in composition of P-o species with depths in the sediment profiles: more photolytic P-o species existed in surface sediments confirmed by sequential extraction and P-31 NMR analysis; and (3) more center dot OH production in the resuspension composed of surface sediment under simulated sunlight irradiation, which directly influence the photo-release of dissolved P-i from photodegradation of organic phosphorus. All of these results indicate that the distribution of organic phosphorus species in the sediment profiles plays an important role in P cycle and its photodegradation during sediment resuspension may be one of the potential pathways for phosphate supplement in shallow lakes. |
资助项目 | National Natural Science Foundation of China[41877461] ; National Key Research and Development Program of China[2017YFD0800102] ; National Key Research and Development Program of China[SQ2018YFD080041] ; Fok Ying Tong Education Foundation, China[151078] ; University of Cincinnati through a UNESCO ; Herman Schneider Professorship in the College of Engineering and Applied Sciences |
WOS关键词 | HUMIC-ACID FRACTIONS ; PHOTOCHEMICAL RELEASE ; ENZYMATIC-HYDROLYSIS ; SURFACE SEDIMENTS ; MATTER SOURCE ; BIOAVAILABILITY ; SOIL ; DEGRADATION ; DISSOLUTION ; NUTRIENTS |
WOS研究方向 | Environmental Sciences & Ecology |
语种 | 英语 |
出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
WOS记录号 | WOS:000477934800029 |
资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Fok Ying Tong Education Foundation, China ; Fok Ying Tong Education Foundation, China ; Fok Ying Tong Education Foundation, China ; Fok Ying Tong Education Foundation, China ; 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内容类型 | 期刊论文 |
源URL | [http://ir.ihb.ac.cn/handle/342005/32091] |
专题 | 水生生物研究所_水环境工程研究中心_期刊论文 |
通讯作者 | Liu, Guanglong; Dionysiou, Dionysios D. |
作者单位 | 1.Huazhong Agr Univ, Key Lab Arable Land Conservat Middle & Lower Reac, Minist Agr & Rural Affairs, Coll Resources & Environm, Wuhan 430070, Hubei, Peoples R China 2.Univ Cincinnati, Environm Engn & Sci Program, Dept Chem & Environm Engn ChEE, Cincinnati, OH 45221 USA 3.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Hubei, Peoples R China |
推荐引用方式 GB/T 7714 | Li, Xiaolu,Guo, Minli,Duan, Xiaodi,et al. Distribution of organic phosphorus species in sediment profiles of shallow lakes and its effect on photo-release of phosphate during sediment resuspension[J]. ENVIRONMENT INTERNATIONAL,2019,130(1):9. |
APA | Li, Xiaolu.,Guo, Minli.,Duan, Xiaodi.,Zhao, Jianwei.,Hua, Yumei.,...&Dionysiou, Dionysios D..(2019).Distribution of organic phosphorus species in sediment profiles of shallow lakes and its effect on photo-release of phosphate during sediment resuspension.ENVIRONMENT INTERNATIONAL,130(1),9. |
MLA | Li, Xiaolu,et al."Distribution of organic phosphorus species in sediment profiles of shallow lakes and its effect on photo-release of phosphate during sediment resuspension".ENVIRONMENT INTERNATIONAL 130.1(2019):9. |
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