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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
2013-09-03
发表期刊ENVIRONMENTAL SCIENCE & TECHNOLOGY
ISSN0013-936X
卷号47期号:17页码:9685-9692
产权排序[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
摘要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.; 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.
关键词Equilibrium Adsorption Theory Sediments Estuaries Nitrogen Transport Phosphate Forms Flux Sea
学科领域Engineering, Environmental ; Environmental Sciences
项目资助者National Key Project for Basic Research [2010CB933600]; NSFC [40906045, 21277161]
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收录类别SCI
关键词[WOS]EQUILIBRIUM ADSORPTION THEORY ; SEDIMENTS ; ESTUARIES ; NITROGEN ; TRANSPORT ; PHOSPHATE ; FORMS ; FLUX ; SEA
文章类型Article
语种英语
资助项目海岸带环境工程技术研究中心
WOS研究方向Engineering ; Environmental Sciences & Ecology
WOS记录号WOS:000330094700017
引用统计
被引频次:24[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cn/handle/133337/7054
专题山东省海岸带环境工程技术研究中心
通讯作者Pan, G (reprint author), Chinese Acad Sci, Ecoenvironm Sci Res Ctr, Beijing 100085, Peoples R China. gpan@rcees.ac.cn; yqsheng@yic.ac.cn
作者单位1.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
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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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