沉积物中磷的存在形态及其生物可利用性研究

郑爱榕; 沈海维; 李文权

沉积物中磷的存在形态及其生物可利用性研究

1.
厦门大学, 海洋学系, 福建, 厦门, 361005;厦门大学, 亚热带海洋研究所, 福建, 厦门, 361005
2.
罗德岛大学, 海洋研究生院, 美国 Narragansett, 02882

基金项目: 中国科学院大亚湾海洋生物开发综合实验站基金资助项目(P9907).

计量
- 文章访问数: 893
- HTML全文浏览量: 29
- PDF下载量: 1664
- 被引次数: 0
出版历程
- 收稿日期: 2003-02-18
- 修回日期: 2003-07-15

Study of chemical forms of phosphorus and their bioavailability in the sediments

1.
Department of Oceanography Xiamen Unirersit, Xiamen 361005, China;Institute Subtropical of Oceanography Xiamen University, Xiamen 361005, China
2.
Graduate School of Oceanography, University of Rhode Island, Narragansett 02882, USA

摘要

摘要: 用MgCl₂,NaOH和HCl对大亚湾的大鹏澳、南海的珠江口、厦门湾的胡里山沉积物进行了逐级提取和总磷分析,并以这3种沉积物为惟一磷源培养小球藻和球等鞭金藻,估算了藻类对沉积物中磷的可利用量.结果表明,3种沉积物总磷含量分别为449.3,650.1和643.9mg/kg;MgCl₂和NaOH提取的生物可利用的非磷灰石无机磷分别为168.8,146.6和118.1mg/kg.非磷灰石无机磷占总磷的18.3%～32.6%.3种提取剂对3种沉积物提取的磷是HCl提取相最大,NaOH提取相次之,MgCl₂提取相最小.小球藻和球等鞭金藻在3种沉积物中的最大相对生长率为4.3%～26.9%,两种藻在3种沉积物中的生长与非磷灰石无机磷和藻类可利用的颗粒磷量相对应.颗粒磷占非磷灰石无机磷的42.4%～78.2%,占沉积物中总无机磷的21.1%～27.1%,占总磷的11.8%～20.3%.
- 沉积物 /
- 磷 /
- 形态 /
- 生物可利用性
Abstract: Chemical forms of phosphorus in the sediments at the Daya Bay,the Zhujiang River Estuary,and the Xiamen Bay were measured with extraction solutions of MgCl₂,NaOH,and HCl.Their availabilities to Chlorella sp.and Isochrysis galbana were estimated by using sediments as the sole source of P in the bioassays.The results show that the contents of total phosphorus(T P) in these sediments are 449.3,650.1 and 643.9 mg/kg,respectively.The contents of non-apatite inorganic P(NAIP) extracted with MgCl₂ and NaOH in three sediments are 168.8,146.6 and 118.1 mg/kg,respectively,and account for 18.3%~32.6% of TP.The phosphorus extracted with HCl solution is greater than that extracted with NaOH solution,whereas the lowest extracted P is MgCl₂-extractable P.The greatest relative growth rates of Chlorella sp.and Isochrysis galbana cultured with sediments are in the range of 4.3%~26.9%.The increasing biomasses of these algae are corresponding to NAIP and AA PP(the estimated alg al-available particulate P).AAPP accounts for 42.4%~78.2% of NA IP,21.1%~27.1% of total inorganic P,and 11.8%~20.3% of T P,respectively.
- chemical forms /
- phosphorus /
- bioav ailability /
- sediment

HTML全文

参考文献(24)

PERKINS R G,UNDERWOOD G J C.The potential for phosphorus release across the sediment-water interface in an eutrophic reservoir dosed with ferric sulphate[J].Water Res,2001,35(6):1 399-1 406.

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

WILLIAMS J D H,JAQUET J M,THOMAS R L.Forms of phosphorus in the surficial sediments of Lake Erie[J].J Fish Res Boad Can,1976,33:413-429.

WILLIAMS J D H,SHEAR H,THOMAS R L.Availability to Scenedesmus quadrivauda of different forms of phosphorus in sedimentary materials from the Great Lakes[J].Limnol Oceanogr,1980,25(1):1-11.

PERSON G.Phosphorus in tributaries to Lake Malaren,Sweden:analytical fractions,anthropogenic contribution and bioavailability[J].Ambio,2001,30(8):486-495.

QIXING Z,CHRISTOPHER E G,YINMEI Z.Evaluation of phosphorus bioavailability in sediments of there contrasting lakes in China and the UK[J].Chemosphere,2001,42:221-225.

杨逸萍,宋瑞星,胡明辉.河口悬浮物与海洋表层沉积物中藻类可利用颗粒磷的数量研究[J].厦门大学学报(自然科学版),1996,35(6):925-935.

杨逸萍,胡明辉,陈海龙,等.九龙江口生物可利用磷的行为与入海通量[J].台湾海峡,1998,17(3):269-274.

杨逸萍,宋瑞星,胡明辉.河口悬浮物与海洋表层沉积物中磷的海洋浮游藻类生物测定[J].厦门大学学报(自然科学版),1996,35(4):574-580.

GB17378.4-1998[S].海洋监测规范第4部分:海水分析.

何清溪,张穗,方正信.大亚湾沉积物中氮和磷的地球化学形态分配特征[J].热带海洋,1992,11(2):38-44

陈水土,阮五崎,郑瑞芝.九龙江口、厦门西海域磷的生物地球化学研究.I.水体中溶解态磷与颗粒态磷的含量、分布与转化[J].海洋学报,1993,15(1):62-70.

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.Ⅲ.生物活动参与下的磷形态及磷循环估算[J].海洋学报,1994,16(2):63-71.

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.

董方,刘素美,张经.北黄海与渤海沉积物中磷形态的分布特征[J].海洋环境科学,2001,20(2):18-23.

GB17378.5-1998[S].中华人民共和国国家标准海洋监测规范第5部分:沉积物分析.

刘素美,张经.沉积物中磷的化学提取分析方法[J].海洋科学,2001,25(1):22～25.

EIJSINK L M,KROM M D,DE LANGE G J.The use of sequential extraction techniques for sedimentary phosphorus in eastern Mediterranean sediments[J].Mar Geo,1997,139(1～4):147-155.

何清溪.大亚湾沉积物中磷化学形态的测定[J].南海研究与开发,1992,3:24-28.

侯立军,刘敏,许世远,等.长江口岸带柱状沉积物中磷的存在形态及其环境意义[J].海洋环境科学,2001,20(2):7-12.

商少凌,洪华生.厦门西海域磷的研究[J].海洋环境科学,1996,15(1):15-21.

李祥云,陈虹勋,李传荣,等.大亚湾悬浮物和底质中主要矿物的分布特征[J].热带海洋,1989,8(1):34-42.

陈耀泰.珠江口沉积分区[J].中山大学学报(自然科学版),1995,34(3):109-114.

张秀梅,梁涛,耿元波.河口、海湾沉积磷在全球变化区域响应研究中的意义[J].地理科学进展,2001,20(2):161-168.

施引文献

资源附件(0)

访问统计