全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
地球学报  2008 

镭同位素示踪隆教湾的海底地下水排泄

DOI: 10.3975/cagsb.2008.05.16

Keywords: 海底地下水排泄(SGD),镭同位素,隆教湾

Full-Text   Cite this paper   Add to My Lib

Abstract:

福建省漳州市隆教湾海水中镭同位素的研究,目的是评价海底地下水排泄量。在2007年6月的航次中,垂直于岸线的9km剖面上布置15个站位,每个站位用潜水泵采集表层海水样60L于塑料桶中。水样运回实验室后,立即用装有锰纤维的PVC管以虹吸的方式富集水样中的镭同位素,水通过PVC管的流速小于300ml/min。224Ra活度用连续射气法测定,测完224Ra后密封7d以上,然后用直接射气法测定226Ra活度。224Ra和226Ra活度都呈现自岸向海逐渐降低的规律,表明扩散控制镭同位素的分布,由224Ra获得68.83km2d-1的扩散系数,同时226Ra形成-0.963dpm100l-1km-1的活度梯度。用扩散系数和活度梯度建立的226Ra的离岸通量为6.62×1011dpmkm-2d-1,这个通量一定是得到SGD输入的镭支持,从而获得隆教湾的海底地下水排泄量是3.03×109m3km-2d-1。该排泄量包括陆源地下淡水排泄量和再循环海水排泄量,绝大部分可能是再循环海水,有待进一步研究。

References

[1]  廖小青;刘贯群;袁瑞强;叶玉玲 李玉瑛.黄河农场地区地下水人海量FEFLOW软件数值模拟[J].海洋科学进展,2005(04)
[2]  邱汉学;郑西来;张效龙;陈友媛.黄河农场地区地下水人海通量的数值分析[J].海洋地质动态,2003(03)
[3]  CROTWELL AM;MOOREW S,Nutrient and radium fluxes from submarine groundwater discharge to port royal sound,South Caro-lina,Aquatic Geochemistry,2003.
[4]  Boehm, AB ;Paytan, A ;Shellenbarger, GG ;Davis, KA,Composition and flux of groundwater from a California beach aquifer: Implications for nutrient supply to the surf zone,Continental Shelf Research?,2006, 26(2).
[5]  ZEKTSER I S;LOAICIGA H A,Groundwater fluxes in the glohal hydrologic cycle:past,present and future,Journal of Hydmlogy,1993.
[6]  XIE Y Z;HUANG Y P;SHI W Y;QIU Y S,Simultaneous con-centration and determination of 226Ra.228Ra in natural waters,Journal of Xiamen University(Natural Science),1994.
[7]  VAUELA I;COSTA J;FOREMEN K;TEAL J M HOWES B AU-BREY D,Transport of groundwater-berne nutrients from wa-temheds and their effects on coastal waters,Biogeochemistry,1990.
[8]  REID D F;KEY R M;SCHINK D R,Radium,thorium.and sc-tinium extraction from seawater using an improved manganese-ox-ide-coated fiber,Earth and Planetary Science Letters,1979(02).
[9]  RAMA;MOORE W S,Using the radium quartet for evabating groundwater input and water exchange in salt marshes,Geochimica Et Cosmochimica Acta,1996(23).
[10]  Moore, WS,Radium isotopes as tracers of submarine groundwater discharge in Sicily,Continental Shelf Research?,2006, 26(7).
[11]  MOORE W S Sources and fluxes of submarine groundwater dis-charge delineated by radium isotopes [J] 2003
[12]  BOKUNIEWICZ H J,Groundwater seepage into Great South Bay,New York.Estuar,Coast Mar Sci? ,1980, 10.
[13]  BURNETT W C;BOKUNIEWICZ H;HUETTEL M;MOORE W S TANIGUCHI M Groundwater and pore water inputs to the coastal zone [J] 2003
[14]  李福林;陈学群;张奇;宋福山 王潘平 刘学忠 姜克华 刘竹梅.莱州湾东岸海底地下水的水文地球化学特征及其地球化学演化模式[J].海洋科学进展,2005(02)
[15]  Moore WS.,Determining coastal mixing rates using radium isotopes,Continental Shelf Research?,2000, 20(15).
[16]  LIAO X Q;LIU G Q;YUAN R Q;YE Y L LI Y Y.FEEFLOW Software Numerical Simulation of Groundwater Discharge Flux to the Sea From the Yellow River Farm Area[J].Advances in Marine Science,2005(04)
[17]  KREST J M;MOORE W S;CARDNER L R;MORRls J,Marsh nu-trient export supplied by ground-water discharge:evidence from Ra mesammnmnts,Global Biogeochemical Cycles? ,2000, 14.
[18]  Dong-Woon Hwang ;Guebuem Kim ;Yong-Woo Lee ;Han-Soeb Yang,Estimating submarine inputs of groundwater and nutrients to a coastal bay using radium isotopes,Marine Chemistry?,2005, 96(1/2).
[19]  HUANgy P;XIE Y Z;CHEN X B;CHEN M.QIU Y S.A New Method for Rapid Coneentrationan Determination of 224 Ra in Sea-water[J].Journal of Xiamen University(Natural Science),2001(03)
[20]  BECK A J;RAPACUA J P;COCHRAN J K;BOKUNIEWICZ H J,Radium mass-balante in Jamaica Bay,NY:Evidence for a substantial flux of submarine groundwater,Marine Chemistry,2007.
[21]  黄奕普;谢永臻;陈性保;陈敏 邱雨生.海水中224Ra快速富集和测定的新方法[J].厦门大学学报,2001(03)
[22]  谢永臻;黄奕普;施文远;邱雨生,天然水体中226Ra、228Ra的联合富集与测定,厦门大学学报,1994.
[23]  Matthew A. Charette ;Richard Splivallo ;Craig Herbold ;Marsha S. Bollinger ;Willard S. Moore,Salt marsh submarine groundwater discharge as traced by radium isotopes,Marine Chemistry?,2003, 84(1/2).
[24]  CHARETTE M A;BUESSELER K O;ANDREWS J E,Utility of radium isotopes for evaluating the input and transport of groundwa-ter-derived nitrogen to a Cape Cod estuary,Limnology and Oceanography,2001.
[25]  BOKUNIEWICZ H J;PAVLIK B,Groundwater seepage along a barrier island,Biogeochemistry? ,1990, 10.
[26]  SWARZENSKI P W;REICH C;KROEGER K D;BASKARAN M,Raand Rnisotopesas naturaltracers of submarine greundw-ater discharge in Tampa Bay,Florida,Marine Chemistry,2007.
[27]  SIMMONS G M,Importance of submarine groundwater discharge (SGWD)and seawater cycling to material flux acress sediment/water interfaces in marine environments,Marine Ecology Progress Series,1992.
[28]  QIU H X;ZHENG X L;ZHANG X L;CHEN Y Y.Numerical analysis of Ggroundwater discharge fluxes to ocean from the HUANGHE farm arcs[J].Marine Geology Letters,2003(03)
[29]  Moore W S,Large groundwater inputs to coastal waters revealed by 226Ra enrichments,Nature? ,1996, (380).
[30]  LI F L;CHEN X Q;ZHANG Q;PETIFFER G,SONG F S,WANG P P,LIU X Z,JIANG K H.LIU Z M.Hydrogeochemical Charac-teristics and Geochemical Evolution Medel of Sea bottom Greundw-ater Along the East Coast of Laizhou Bay[J].Advances in Marine Science,2005(02)
[31]  Yong-Woo Lee ;Guebuem Kim,Linking groundwater-borne nutrients and dinoflagellate red-tide outbreaks in the southern sea of Korea using a Ra tracer,Estuarine Coastal and Shelf Science?,2007, 71(1/2).
[32]  CAPONE D.G;SLATER J.M,Interannual patterns of water table height and groundwater derived nitrate in nearshore sediments,Biogeochemistry? ,1990, 10.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133