收稿日期: 2008-12-20
修回日期: 2009-01-02
网络出版日期: 2001-01-08
基金资助
国家自然科学基金项目(40776086); 国家908专项(908-02-04-08); 广东省科技计划项目(2007A032600004, A3050301); 中国
科学院南海海洋研究所知识创新工程领域前沿项目(LYQY200706)
Distribution characteristics and pollution of nitrogen and phosphorus in core sediments of marine culture area in Dapeng Cove
Received date: 2008-12-20
Revised date: 2009-01-02
Online published: 2001-01-08
为研究海水养殖对海湾沉积物的累积影响, 对大亚湾的大鹏澳养殖区沉积物柱状样中总氮、总磷和有机碳的含量及剖面分布特征进行了研究, 并探讨了海水养殖区沉积物中氮、磷的污染状况。结果表明, 网箱养殖区、贝类养殖区和对照区等3个区域柱状样中总氮的含量范围分别为638.2—3803.9mg.kg-1、740.9—2152.1mg.kg-1和343.2—471.9mg.kg-1, 总磷的含量范围分别为344.7—3233.9mg.kg-1、297.9—497.5mg.kg-1和650.2—1327.2 mg.kg-1, 有机碳的含量范围分别为0.96%—2.22%、0.87%—1.13%和0.69%—0.95%。该三个因子的含量均从底层至表层呈增加趋势, 但网箱养殖区上层增加幅度最为剧烈, 贝类区次之, 对照区变化幅度最小。所有柱状样中, 总氮含量均超标, 但网箱养殖区总氮污染最为严重, 贝类养殖区次之, 对照区最轻; 网箱养殖区的总磷在上层的不同深度超标, 而贝类养殖区及对照区柱状样的总磷含量均未超标。
黄小平 , 郭芳 , 黄良民 . 大鹏澳养殖区柱状沉积物中氮、磷的分布特征及污染状况研究[J]. 热带海洋学报, 2010 , 29(1) : 91 -97 . DOI: 10.11978/j.issn.1009-5470.2010.01.091
In order to study accumulation effects of marine culture on sediments, the contents and profile distribution characteristics of total nitrogen (TN), total phosphorus (TP) and total organic carbon (TOC) in core sediments from marine culture areas of Dapeng Cove in the Daya Bay were investigated. The pollution status of nitrogen and phosphorus of marine culture area were discussed. The results show that the contents of TN in cage culture, shellfish culture and control areas are in the range of 638.2-3 803.9mg.kg-1, 740.9-2 152.1mg.kg-1 and 343.2-471.9mg.kg-1, respectively; the contents of TP are in the range of 344.7-3 233.9mg.kg-1, 297.9-497.5mg.kg-1 and 650.2-1 327.2mg.kg-1, respectively; the contents of TOC are in the range of 0.96%-2.22%, 0.87%-1.13% and 0.69%–0.95%, respectively. The vertical distributions of the TN, TP and TOC contents increased from the bottom to surface layers in the study areas and the variation range in upper layers was greater than that in lower layers. The profile distributions of the contents increased most drastically in the cage culture area, followed by those in the shellfish culture area and least in the control area. The contents of TN in core sediment samples all exceeded the assessment standard, while the most serious one was in the cage cul-ture area, followed by the shellfish area and least in the control area. The contents of TP only exceeded the standard in the cage cul-ture area in the surface layer, while the contents of TP in the shellfish culture area and control area did not exceed the assessment standard.
Key words： marine culture; sediment; profile; nitrogen; phosphorus; total organic carbon; Dapeng Cove
[1] 刘敏, 侯立军, 许世远, 等. 河口滨岸潮滩沉积物—水 界面N、P的扩散通量[J]. 海洋环境科学, 2001, 20(3): 19-23.
[2] 宋金明, 李学刚, 邵君波, 等. 南黄海沉积物中氮、磷的生物地球化学行为[J]. 海洋与湖沼, 2006, 37(4): 370-376.
[3] 马红波, 宋金明, 吕晓霞, 等. 渤海南部柱状沉积物中氮的形态与有机碳的分解[J]. 海洋学报, 2002, 24(5): 64-70.
[4] 郑丽波, 周怀阳, 叶 瑛. 东海特定海区柱状沉积物中磷存在形态及其环境指示意义[J]. 上海环境科学, 2000, 22(6): 414-417.
[5] 周怀阳, 郑丽波, 王怀照, 等. 花鸟山外海域几种形态磷在柱状沉积物中的分布及环境意义[J]. 东海海洋, 2000, 18(4): 9-15.
[6] 岳维忠, 黄小平. 珠江口柱状沉积物中磷的分布特征及其环境意义[J]. 热带海洋学报, 2005, 24(1): 21-27.
[7] 岳维忠, 黄小平. 珠江口柱状沉积物中氮的形态分布特征及来源探讨[J]. 环境科学, 2005 26(2): 195-199.
[8] VAITHIYANATHAN P, JHA P K, Subramanian V. Phosphorus distribution in the sediments of the Hooghly (Ganges) Estuary, India[J]. Estuarine, Coastal and Shelf Science, 1993, 37(6): 603-614.
[9] CONLEY J, STOCKENBERG A, CARMAN R, et al. Sediment-water nutrient fluxes in the Gulf of Finland, Baltic Sea[J]. Estuarine, Coastal and Shelf Science, 1997, 45(5): 591-598.
[10] MACLEOD C K, CRAWFORD C M, MOLTSCHANI- WSKYJ N A. Assessment of long term change in sediment condition after organic enrichment: defining recovery[J]. Marine Pollution Bulletin, 2004, 49: 79-88.
[11] CARROLL M L, COCHRANE, FIELER R, et al. Organic enrichment of sediments from salmon farming in Norway: environmental factors, management practices, and monitoring techniques[J]. Aquaculture, 2003, 226: 165-180.
[12] 王文强, 韦献革, 温琰茂. 哑铃湾网箱养殖海域沉积物中氮的化学形态分配特征[J]. 环境科学研究, 2004, 17(5): 15-22.
[13] 甘居利, 林钦, 黄洪辉, 等. 大鹏澳网箱养殖区底质硫化物分布、变化和污染分析[J]. 水产学报, 2003, 27(6): 570-574.
[14] 黄小平, 郭 芳, 黄良民. 大亚湾典型养殖区表层沉积物环境特征研究[J]. 热带海洋学报, 2008, 27(5): 37-42.
[15] 鲍士旦. 土壤农化分析[M]. 北京: 中国农业出版社, 1999, 1-495.
[16] SMART M M, RADA R G, DOMMERMEYER G N. Determination of total nitrogen in sediments and plants using persulfate digestion [J]. Water Research, 1983, 17(9): 1207-1211.
[17] LEIVUORI M, NIEMISTÖ L. Sediment of trace metals in the Gulf of Bothnia[J]. Chemosphere, 1995, 31(8): 3839-3856.
[18] AGUADO-GIMÉNE F, GARCÍA-GARCÍA B. Assessment of some chemical parameters in marine sediments exposed to offshore cage fish farming influence: a pilot study[J]. Aquaculture, 2004, 242: 283-295.
[19] 韦献革, 温琰茂, 陈璟璇, 等. 哑铃湾网箱养殖海区表层沉积物磷的含量特征[J]. 水产科学, 2005, 24(8): 4-7.
[20] 何悦强, 郑庆华, 温伟英, 等. 大亚湾海水网箱养殖与 海洋环境相互影响研究[J]. 热带海洋, 1996, 15(2): 22-27.
[21] 王朝晖, 齐雨藻, 李锦蓉, 等. 大亚湾养殖区营养盐状况分析与评价[J]. 海洋环境科学, 2004, 23(2): 25-28.
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