高彩霞,刘春颖,李铁,祝陈坚,张海波

• 1:中国海洋大学化学化工学院海洋化学理论与工程技术教育部重点实验室

摘要(Abstract)：

2012年春季以青岛近海为研究海域,采用pH单点法、自动电位滴定法及溶解无机碳(DIC)计算法测得海水总碱度(Alk),并对这3种方法进行比较;探讨该海域海水Alk的分布特征及影响因素;对过滤前后样品的Alk差值与叶绿素(Chl-a)间的相关性进行分析。结果表明:DIC计算法和pH单点法得出的Alk误差较大,电位滴定法测定的Alk结果精密度较高;青岛近海海域表层水体中Alk范围为2 070~2 364μmol/kg,其平均值2 310μmol/kg;过滤前后样品的Alk差值与Chl-a含量具有一定的相关性,表明浮游植物和颗粒物对Alk有影响。

关键词(KeyWords)： 海水总碱度;方法比校;影响因素;分布

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(41176062);; 国家基础科学人才培养基金项目(J1103313)资助

作者(Author): 高彩霞,刘春颖,李铁,祝陈坚,张海波

DOI: 10.16441/j.cnki.hdxb.2014.03.010

参考文献(References)：

• [1]Sabine C L,Feely R A.The oceanic sink for carbon dioxide.In Greenhouse Gas Sinks[M].Oxfordshire:CABI Publishing,2007:31-49.
• [2]Henderson C.Ocean acidification:the other CO2 problem[J].New Scientist,2006,2563:28-33.
• [3]Dickson A G.An exact definition of total alkalinity and a procedure for the estimation of alkalinity and total inorganic carbon from titration data[J].Deep-Sea Res,1981,28A(6):609-623.
• [4]宫海东.中国黄海、南海和青岛近海表面海水二氧化碳体系的多层研究[D].青岛:中国海洋大学,2007.
• [5]Lee K,Lan T,Millero F J,et al.Global relationships of total alkalinity with salinity and temperature in surface waters of the world’s oceans[J].Geophys Res Lett,2006,33,L19605,doi:10.1029/2006GL027207.
• [6]Raymond P A,Cole J J.Increase in the export of alkalinity from North America’s largest river[J].Science,2007,301:88-91.
• [7]Cai W J,Hu X,Huang W J,et al.Surface ocean alkalinity distribution in the western North Atlantic Ocean margins[J].J Geophys Res,2010,115:C08014.doi:10.1029/2009JC005482.
• [8]Chou W C,Sheu D D,Lee B S,et al.Depth distributions of alkalinity,TCO2andδ13CTCO2at SEATS time-series site in the northern South China Sea[J].Deep-Sea Research II,2007,54:1469-1485.
• [9]李福荣.杭州湾海水碱度的研究[J].青岛海洋大学学报,1999,S1:55-61.
• [10]Wolf-Gladrow D A,Zeebe R E,Klaas C,et al.Total alkalinity:he explicit conservative expression and its application to biogeochemical processes[J].Marine Chemistry,2007,106:287-300.
• [11]Kim H C,Lee K,Choi W Y.Contribution of phytoplankton and bacterial cells to the measured alkalinity of seawater[J].Limnol Oceanogr,2006,51:331-338.
• [12]祝陈坚.海水分析化学实验[P].青岛:中国海洋大学出版社,2006:27-92.
• [13]Khoruzhii D S,Ovsyanyi E I,Konovalov S K.Comparison of the results of determination of the carbonate system and the total alkalinity of seawater according to the data obtained by using different analytic methods[J].Physical Oceanography,2011,21(3):182-194.
• [14]Howland R J M,Tappin A D,Uncles R J,et al.Distributions and seasonal variability of pH and alkalinity in the Tweed Estuary,UK[J].Sci Total Environ,2000,251:125-138.
• [15]Dieter A,Wolf-Gladrow,Richard E,et al.Total alkalinity[J].Marine Chemistry,2007,106:287-300.
• [16]Boyd Gradmann.Electrophysiology of the marine diatomCoscinodiscus wailesii.III.Uptake of nitrate and ammonium[J].J Exp Bot,1999,50(333):461-467.
• [17]Brewer P G,Goldman J C.Alkalinity changes generated by phytoplankton growth[J].Limnol Oceanogr,1976,21(1):108-117.
• [18]Schlesinger W H.Biogeochemistry:An Analysis of Global Change[M].San Diego:Academic Press,1997:588.
• [19]Crist R H,Martin J R,Guptill P W,et al.Interaction of metals and protons with algae 2Ion exchange in adsorption and metal displacement by protons.Environ[J].Sci Technol,1990,24:337-342.
• [20]Gonzalez-Davila M.The role of phytoplankton cells on the control of heavy metal concentration in sea-water[J].Marine Chemistry,1995,48:215-236.

文章评论(Comment)：