粤东大规模海水增养殖区柘林湾表层沉积物中的含水量、有机质、氮和磷

黄长江; 董巧香; 林俊达; 商栩; 李金

粤东大规模海水增养殖区柘林湾表层沉积物中的含水量、有机质、氮和磷

温州医学院, 环境与公共卫生学院, 浙江, 温州, 325035

基金项目: 温州市科技局重大项目(S20060023);温州医学院重大项目(XNK0b008)

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出版历程
- 收稿日期: 2007-02-07
- 修回日期: 2007-05-10

Sediment water,organic matter,nitrogen and phosphorus contents in a large-scale mariculture located in Zhelin Bay,eastern Guangdong Province,China

School of Environmental Science and Public Health, Wenzhou Medical College, Wenzhou, Zhejiang 325035, China

摘要

摘要: 柘林湾是粤东地区规模最大的海水增养殖区,近20年来水体富营养化情况日益加重,赤潮频繁发生。2002年7月至2003年7月对该湾9个站位表层沉积物中的含水量(W)、有机质(TOM)和不同形态的氮(TkN,NH₄⁺)与磷(Ex-P,Fe-P,Au-P,De-P,OP)进行每月一次的周年调查。结果显示,表层沉积物中的含水量和有机质及不同形态的氮、磷均呈现极显著意义的正相关关系,今后可用含水量直接对这些指标进行粗略估算。有机质与氮、磷呈显著意义的正相关关系,表明有机质是影响氮、磷含量和分布的重要因素之一。凯氏氮(TkN)和总磷(TP)的总平均值分别为(1113.1±382.5)μg/g和(567.2±223.3)μg/g,显著高于国内外许多同类型的海湾。各形态氮、磷含量年均值的平面分布呈现湾内(除S1,S7站外)高于湾外、养殖区高于非养殖区、网箱渔排养殖区高于牡蛎养殖区的总体趋势,说明湾内大规模增养殖业对海湾富营养化进程起着重要的作用。各形态氮、磷含量均于盛夏至初秋的高温季节(7-9月)处于年度峰值,这与该季节养殖动物处于生长旺期与高死亡率所造成的生物碎屑增多和有机质分解加速有关。与2002年7月相比,2003年7月的TkN和TP均出现大幅升高,与水体富营养化程度不断加重的趋势相符。此外,自生磷(Au-P)年平均占TP的49.2%,是该湾沉积物中最主要的磷形态。由于水体富营养化能导致沉积物的pH降低,继而促进Au-P中的自生钙氟磷灰石和碳酸钙所结合的磷释放进入水体,因而表层沉积物中高浓度的Au-P可能成为此类海湾富营养化水平加剧和赤潮大规模暴发加剧的隐患。
- 柘林湾 /
- 表层沉积物 /
- 氮 /
- 磷 /
- 含水量 /
- 有机质
Abstract: Zhelin Bay is one of the most important bays for large scale mariculture in Guangdong Province, China. Due to the increasing human population and the expanding mariculture in the last two decades,the ecological environment has greatly changed with frequent harmfulalgal blooms. We conducted a monthly survey of water content(W),organic matter(TOM),and various forms of nitrogen(N)and phosphorous (P)in the sediment from July 2002 to July 2003. The results show that water content correlated highly significantly with TOM and various forms of N and P and can be used as proxy for quick and rough estimate of these factor in the future surveys. TOM also correlated significantly with various forms of N and P,indicating that it is one of the key factors to affect the concent rations and distributions of N and P in the investigated waters. A veragetotal Kjeldhalnitrogen(TkN)and total phosphorus(TP)was(1 113.1±382.5) μg/g and(567.2±223.3)μg/g,respectively,much higher than those of similar estuaries in China and else-where. Average N and P tended to be higher inside than out side the bay,higher at aquaculture than non-aquaculture areas,and higher at fish-cageculture than oyster culture areas,suggesting that large-scale mariculture inside the bay play an important role in the eutrophication of Zhelin Bay. Various forms of N and P concent rations were higher during the warm season(July-Sept ember),due to the increased decom position and concentration of organic matter resulted from the fast growth and high mortality of the cultured species. Compared to July of 2002,TkN and TP were much higher in July of 2003,in consonance with the eutrophication of the Zhelin Bay. Since BP(biologiccal phosphorus)in the sediment includes Ex-P(exchangable phosphorus),Fe-P(iron-bouned phosphorus),OP(organic phosphorus)and some Au-P (aut higenic pho spho rus). Since Ex-P,Fe-P and OP combined accounted for 34.3%of the TP and Au-P accounted for 49.2% of the TP,BP in Zhelin Bay accounted for 34.3%to 83.5%of the T P,within the percentage range,but with a high absolute value among the est uaries.Au-P was the most important species of P and accounted for 49.2%of the TP during the investigation.Since eutrophication in the water column canlead to reduction of pH in the sediment and release of phosphorus in Au-P combined with authigenic spodiosite and calcium carbonate,high concent ration of Au-P in the sediment maybe atimebomb that can trigger avicious cycle of eut rophication and large-scale harmful algal bloom in Zhelin Bay.
- Zhelin Bay /
- sediment /
- nitrogen /
- phosphorus /
- water content /
- organic matter

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参考文献(54)

CROWTHER B,ADRIEUX F,AMINOT A.A two-year survey of phosphorus speciation in the sediments of the Bay of Seine (France)[J].Continental Shelf Research,1997,17 (10);1229-1245.

DANIELSSON A,CARMAN R,RAHM L,et al.Spatial estimation of nutrient distributions in the Gulf of Riga sediments using Cokriging[J].Estuarine,Coastal and Shelf Science,1998,46(5):718-722.

CLAVERO V,IZQUIERDO J J,FERNANDEZ J A,et al.Seasonal fluxes of phosphate and ammonium across the sediment-water interface in a shallow small estuary (Palmones River,southern Spain)[J].Marine Ecology Progress Series,2000,198:51-60.

SLOMP C P,MALSCHAERT J F P,van RAAPHORST W.The role of adsorption in sediment-water exchange of phosphate in North Sea continental margin sediments[J].Limnology and Oceanography,1998,43(5):832-846.

戚晓红,刘素美,张经,等.东海赤潮高发区沉积物中营养盐再生速率的研究[J].应用生态学报,2003,14(7);1112-1116.

LI Y,YU J.Geochemical characteristics of phosphorus near the Huanghe River Estuary[J].Chinese Journal of Oceanology and Limnology,1999,17(4):359-365.

宋金明.黄河口邻近海域沉积物中可转化的磷[J].海洋科学,2000,24(7):42-45.

ROWE G T,CLIFFORD C H,SMITH K L.Nutrient regeneration in sediments off Cap Blanc,Spanish Sahara[J].Deep-Sea Research,1977,24:57-63.

BERELSON W M,HEGGIE D,LONGMORE A,et al.Benthic nutrient recycling in Port Phillip Bay,Australia[J].Estuarine,Coastal and Shelf Science,1998,46(6):917-934.

MORIN J,MORSE J W.Ammonium release from resuspended sediments in the Laguna Madre estuary[J].Marine Chemistry,1999,65(1):97-110.

AROCENA R,PRATONNMVIENG W.Nitrogen exchange between sediments and water in three backwaters of the Danube[J].Archiv fuer Hydrobiologie Supplement,1995,101(2):111-120.

YAMAMURO M,KOIKE I.Concentrations of nitrogen in sandy sediments of a eutrophic estuarine lagoon[J].Hydrobiologia,1998,386(1-3):37-44.

HARRISON W G,DOUGLAS D,FALKOWSK I.Summer nutrient dynamics of the Middle Atlantic Bight:nitrogen uptake and regeneration[J].Journal of Plankton Research,1983,5(4):539-556.

BOYNTON W R,KEMP W M.Nutrient regeneration and oxygen consumption by sediments along an estuarine salinity gradient[J].Marine Ecology Progress Series,1985,23(1):45-55.

STIMSON J,LARNED S T.Nitrogen efflux from the sediments of a subtropical bay and the potential contribution to macroalgal nutrient requirements[J].Journal of Experimental Marine Biology and Ecology,2000,252:159-180.

ZHOU Q,GIBSON C E,ZHU Y.Evaluation of phosphorus bioavailahility in sediments of three contrasting lakes in China and the UK[J].Chemosphere,2001,42(2):221-225.

KAISERLI A,VOUTSA D,SAMARA C.Phosphorus fractionation in lake sediments-lakes Volvi and Koronia,N.Greece[J].Chemosphere,2002,46(8):1147-1155.

周凯,黄长江,姜胜,等.2000～2001年粤东柘林湾营养盐分布[J].生态学报,2002,22(12):2116-2124.

黄长江,杜虹,陈善文,等.2001～2002年柘林湾大量营养盐的时空分布[J].海洋与湖沼,2004,35(1):21-29.

黄长江,董巧香,郑磊.1997年底中国东南沿海棕囊藻赤潮的生物学与生态学特征[J].海洋与湖沼,1999,30(6):581-590.

黄长江,陈善文,何歆,等.2001-2002年粤东柘林湾浮游动物生态学研究[J].海洋与湖沼,2003,34(2):117-130.

RUTTENBERG K C.Development of a sequential extraction method for different forms of phosphorus in marine sediments[J].Limnology and Oceanography,1992,37(7):1460-1482.

JENSEN H S,THAMDRUP B.Iron-bound phosphorus in marine sediments as measured by bicarbonate-dithionite extraction[J].Hydrobiologia,1993,253(1-3):47-59.

扈传昱,王正方,吕海燕.海水和海洋沉积物中总磷的测定[J].海洋环境科学,1999,18(3):48-52.

McCOMB A J,QIU S,LUKATELICH R J,et al.Spatial and temporal heterogeneity of sediment phosphorus in the Peel-Harvey estuarine system[J].Estuarine,Coastal and Shelf Science,1998,47(5):561-577.

KROM M D,BERNER R A.Adsorption of phosphate in anoxic marine sediments[J].Limnology and Oceanography,1980,25(5):797-806.

MORTIMER R J G,KROM M D,WATSON P G,et al.Sediment-water exchange of nutrients in the intertidal zone of the Humber Estuary,UK[J].Marine Pollution Bulletin,1998,37(3):261-279.

NASNOLKAR C M,SHIRODKAR P V,SINGBAL S Y S.Studies on organic carbon,nitrogen and phosphorous in the sediments of Mandovi estuary,Goa[J].Indian Journal of Marine Sciences,1996,25:120-124.

蔡爱智.粤东柘林湾的泥沙来源和沉积环境[J].厦门大学学报(自然科学版),1994,33(4):515-520.

乔永民,黄长江.柘林湾表面沉积物重金属分布及污染初步评价[J].海洋科学,2006,30(3):41-45.

RODE M,LINDENSCHMIDT K E.Distributed sediment and phosphorus transport modeling on a medium sized catchment in central germany[J].Physics and Chemistry of Earth Part B:Hydrology,Oceans,and Atmosphere,2001,26(7-8):635-640.

SUNDARESHWAR P V,MORRIS J T.Phosphorus sorption characteristics of intertidal marsh sediments along an estuarine salinity gradient[J].Limnology and Oceanography,1999,44(7):1693-1701.

MACH D L,RAMIREZ A,HOLLAND H D.Organic phosphorus and carbon in marine sediments[J].American Journal of Science,1987,287:429-441.

BOERS P C M,Van RAAPHORST W,Van der MOLEN D T.Phosphorus retention in sediments[J].Water Science Technology,1998,37(3):31-39.

GOMEZ E,FILLIT M,X1MENES M C,et al.Phosphate mobility at the sediment-water interface of a Mediterranean lagoon (etang du M jean),seasonal phosphate variation[J].Hydrobiologia,1998,373-374(0):203-216.

FROELICH P N.Kinetic control of dissolved phosphate in natural rivers and estuaries:a primer on the phosphate buffer mechanism[J].Limnology and Oceanography,1988,33(4):649-668.

WINDOM H,BYRD J,SMITH R,et al.Trace metal-nutrient relationships in estuaries[J].Marine Chemistry,1991,32(2-4):177-194.

GOMEZ E,DURILLON C,ROFES G,et al.Phosphate adsorption and release from sediments of brackish lagoons:pH,O2 and loading influence[J].Water Research,1999,33(10):2437-2447.

RUTTENBERG K C,BERNER R A,Anthigenic apatite formation and burial in sediments from non-upwelling,continental margin environments[J].Geochimica et Cosmochimica Acta,1993,57(5):991-1007.

宋金明,罗延馨,李鹏程.渤海沉积物一海水界面附近磷与硅的生物地球化学循环模式[J].海洋科学,2000,24(12):30-32.

林小苹,黄长江,林福荣,等.海水富营养化评价的主成分-聚类分析方法[J].数学的实践与认识,2004,34(12):69-74.

GOLTERMAN H L.The role of the ironhydroxide-phosphate-sulphlde system in the phosphate exchange between sediments and overlying water[J].Hydrobiologia,1995,297(1):43-54.

AZZONI R,GIORDANI G,BARTOLI M,et al.Iron,sulphur and phosphorus cycling in the rhizosphere sediments of a eutrophic Ruppia cirrhosa meadow (Valle Smarlacca,Italy)[J].Journal of Sea Research,2001,45:15-26.

JENSEN H S,McGLATHERY K J,MARINO R,et al.Forms and availability of sediment phosphorus in carbonate sand of Bermuda seagrass beds[J].Limnology and Oceanography,1998,43 (5):799-810.

周凯,黄长江,姜胜,等.2000～2001年柘林湾浮游植物群落结构及数量变动的周年调查[J].生态学报,2002,22(5):688-698.

陈水土,阮五崎.九龙江口、厦门西海域磷的生物地球化学研究:Ⅱ.表层沉积物中磷形态的分布及在再悬浮过程中从转化[J].海洋学报,1993,15(6):47-54.

杨新梅,刘娟.长山群岛海域沉积物氮、磷营养要素背景含量研究[J].海洋环境科学,1994,13(4):70-75.

扈传昱,潘建明,刘小涯.珠江口沉积物中磷的赋存形态[J].海洋环境科学,2001,20(4):21-25.

王汉奎,董俊德,张偲,等.三亚湾沉积物中磷释放的初步研究[J].热带海洋学报,2003,22(3):1-8.

王菊英,马德毅,鲍永恩,等.黄海和东海海域沉积物的环境质量评价[J].海洋环境科学,2003,22(4):21-24.

吕晓霞,宋金明.南黄海表层沉积物中氮的区域地球化学特征[J].海洋科学进展,2003,21(2)174-180.

HOPKINSON C S.Nutrient regeneration in shallow-water sediments of the estuarine plume region of the nearshore Georgia Bight,USA[J].Marine Biology,1987,94:127-142.

QIANG X,JIEYUN J,JINGSON C,et al.Speciation of sewage derived phosphorus in coastal sediments from Rio de Janeiro,Brazil[J].Marine Pollution Bulletin,1998,36 (10):818-827.

KOCH M S,BENZ R E,RUDNICK D T.Solid-phase phosphorus pools in highly organic carbonate sediments of Northeastern Florida Bay[J].Estuarine,Coastal and Shelf Science,2001,52:279-291.

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