Impact of Suspended Inorganic Particles on Phosphorus Cycling in the Yellow River (China)
Pan, Gang1; Krom, Michael D.2,3; Zhang, Meiyi1; Zhang, Xianwei1; Wang, Lijing1; Dai, Lichun1; Sheng, Yanqing4; Mortimer, Robert J. G.2; Pan, G (reprint author), Chinese Acad Sci, Ecoenvironm Sci Res Ctr, Beijing 100085, Peoples R China. gpan@rcees.ac.cn; yqsheng@yic.ac.cn
Source PublicationENVIRONMENTAL SCIENCE & TECHNOLOGY
ISSN0013-936X
2013-09-03
Volume47Issue:17Pages:9685-9692
KeywordEquilibrium Adsorption Theory Sediments Estuaries Nitrogen Transport Phosphate Forms Flux Sea
Contribution Rank[Pan, Gang; Zhang, Meiyi; Zhang, Xianwei; Wang, Lijing; Dai, Lichun] Chinese Acad Sci, Ecoenvironm Sci Res Ctr, Beijing 100085, Peoples R China; [Krom, Michael D.; Mortimer, Robert J. G.] Univ Leeds, Sch Earth & Environm, Earth & Biosphere Inst, Leeds LS2 9JT, W Yorkshire, England; [Krom, Michael D.] Univ Haifa, Charney Sch Marine Sci, IL-31905 Haifa, Israel; [Sheng, Yanqing] Chinese Acad Sci, Key Lab Coastal Zone Environm Proc, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
AbstractPhosphorus (P) in water and sediment in the Yellow River was measured for 21 stations from the source to the Bohai Sea in 2006-2007. The average total particulate matter (TPM) increased from 40 mg/L (upper reaches) to 520 mg/L (middle reaches) and 950 mg/L in the lower reaches of the river. The average dissolved PO4 concentration (0.43 mu mol/L) was significantly higher than that in 1980's but lower than the world average level despite high nutrient input to the system. Much of the P input was removed by adsorption, which was due to the high TPM rather than the surface activity of the particles since they had low labile Fe and low affinity for P. The sediment was a sink for P in the middle to lower reaches but not in the upper to middle reaches. TPM has been reduced by more than an order of magnitude due to artificial dams operating over recent decades. Modeling revealed that TPM of 0.2-1 g/L was a critical threshold for the Yellow River, below which most of the phosphate input cannot be removed by the particles and may cause eutrophication. These findings are important for river management and land ocean modeling of global biogeochemical P cycling.; Phosphorus (P) in water and sediment in the Yellow River was measured for 21 stations from the source to the Bohai Sea in 2006-2007. The average total particulate matter (TPM) increased from 40 mg/L (upper reaches) to 520 mg/L (middle reaches) and 950 mg/L in the lower reaches of the river. The average dissolved PO4 concentration (0.43 mu mol/L) was significantly higher than that in 1980's but lower than the world average level despite high nutrient input to the system. Much of the P input was removed by adsorption, which was due to the high TPM rather than the surface activity of the particles since they had low labile Fe and low affinity for P. The sediment was a sink for P in the middle to lower reaches but not in the upper to middle reaches. TPM has been reduced by more than an order of magnitude due to artificial dams operating over recent decades. Modeling revealed that TPM of 0.2-1 g/L was a critical threshold for the Yellow River, below which most of the phosphate input cannot be removed by the particles and may cause eutrophication. These findings are important for river management and land ocean modeling of global biogeochemical P cycling.
SubtypeArticle
Indexed BySCI
Language英语
WOS KeywordEQUILIBRIUM ADSORPTION THEORY ; SEDIMENTS ; ESTUARIES ; NITROGEN ; TRANSPORT ; PHOSPHATE ; FORMS ; FLUX ; SEA
WOS Research AreaEngineering ; Environmental Sciences & Ecology
Funding Project海岸带环境工程技术研究中心
WOS IDWOS:000330094700017
Funding OrganizationNational Key Project for Basic Research [2010CB933600]; NSFC [40906045, 21277161]
Citation statistics
Cited Times:50[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/7054
Collection中科院海岸带环境过程与生态修复重点实验室_海岸带环境工程技术研究与发展中心
Corresponding AuthorPan, G (reprint author), Chinese Acad Sci, Ecoenvironm Sci Res Ctr, Beijing 100085, Peoples R China. gpan@rcees.ac.cn; yqsheng@yic.ac.cn
Affiliation1.Chinese Acad Sci, Ecoenvironm Sci Res Ctr, Beijing 100085, Peoples R China
2.Univ Leeds, Sch Earth & Environm, Earth & Biosphere Inst, Leeds LS2 9JT, W Yorkshire, England
3.Univ Haifa, Charney Sch Marine Sci, IL-31905 Haifa, Israel
4.Chinese Acad Sci, Key Lab Coastal Zone Environm Proc, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
Recommended Citation
GB/T 7714
Pan, Gang,Krom, Michael D.,Zhang, Meiyi,et al. Impact of Suspended Inorganic Particles on Phosphorus Cycling in the Yellow River (China)[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2013,47(17):9685-9692.
APA Pan, Gang.,Krom, Michael D..,Zhang, Meiyi.,Zhang, Xianwei.,Wang, Lijing.,...&yqsheng@yic.ac.cn.(2013).Impact of Suspended Inorganic Particles on Phosphorus Cycling in the Yellow River (China).ENVIRONMENTAL SCIENCE & TECHNOLOGY,47(17),9685-9692.
MLA Pan, Gang,et al."Impact of Suspended Inorganic Particles on Phosphorus Cycling in the Yellow River (China)".ENVIRONMENTAL SCIENCE & TECHNOLOGY 47.17(2013):9685-9692.
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