企沙半岛邻近海域春季水质营养状况分析
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摘要
根据2013年4月对企沙半岛邻近海域调查结果,分析了该区域春季水质营养状况。结果表明,表层海水中DIN、DIP和DSi浓度范围分别为0.077～0.760 mg/L、0.002～0.130 mg/L和0.267～0.928 mg/L,企沙半岛邻近的东部和西部海域DIN、DIP和DSi均高于南部海域,且东部海域均呈现西南方向递减,西部海域均呈现东南方向递减。从营养盐结构分析,对照■等提出的营养盐化学计量限制标准,春季企沙半岛邻近海域,磷是浮游植物生长的潜在限制因子。通过有机污染指数和营养状态指数分析,整个调查海区水质已开始受到污染并处于贫营养水平状态,但局部区域已出现中度和严重污染状况,营养状态呈现中营养和富营养水平。
The nutriture and water quality in the adjacent waters of Qisha Peninsula in spring was analyzed according to the investigation result in April,2013.The results showed that the concentration ranges of dissolved inorganic nitrogen(DIN),dissolved inorganic phosphorus(DIP) and dissolve silicate DSi in surface seawater were 0.077～0.760,0.002～0.130 and 0.267～0.928 mg/L,respectively.The horizontal distributions of DIN,DIP and DSi were higher in the eastern and western waters of Qisha Peninsula than those in the southern waters.The nutrients of eastern and western waters displayed decreasing trends toward southwest and southeast,respectively.By analyzing the nutrition structure and comparing with limit standard of chemical measure for the nutrients,it is concluded that phosphate should be a potential factor to limit phytoplankton growth in the adjacent waters of Qisha Peninsula in spring.The water quality was analyzed by using pollution index and eutrophication index.The results indicated that water quality of the whole surveyed area has been polluted and is in an oligotrophic condition,and the water quality in some areas has become moderately and severely polluted with nutriture displaying mesotropher and eutrophication level.
The nutriture and water quality in the adjacent waters of Qisha Peninsula in spring was analyzed according to the investigation result in April,2013.The results showed that the concentration ranges of dissolved inorganic nitrogen(DIN),dissolved inorganic phosphorus(DIP) and dissolve silicate DSi in surface seawater were 0.077～0.760,0.002～0.130 and 0.267～0.928 mg/L,respectively.The horizontal distributions of DIN,DIP and DSi were higher in the eastern and western waters of Qisha Peninsula than those in the southern waters.The nutrients of eastern and western waters displayed decreasing trends toward southwest and southeast,respectively.By analyzing the nutrition structure and comparing with limit standard of chemical measure for the nutrients,it is concluded that phosphate should be a potential factor to limit phytoplankton growth in the adjacent waters of Qisha Peninsula in spring.The water quality was analyzed by using pollution index and eutrophication index.The results indicated that water quality of the whole surveyed area has been polluted and is in an oligotrophic condition,and the water quality in some areas has become moderately and severely polluted with nutriture displaying mesotropher and eutrophication level.
引文
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[21] 韦蔓新,赖廷和,何本茂.防城港水质特征及营养状况趋势研究[J].海洋通报,2003,22(1):44-49.
[22] 丘耀文.大亚湾营养物质变异特征[J].海洋学报,2001,23(1):85-93.
[23] 邹景忠,董丽萍,秦保平.渤海湾富营养化和赤潮问题的初步探讨[J].海洋环境科学,1983,2(2):41-54.
[24] 刘彬昌.黄骅近海及滩涂水域环境与赤潮形成初探[J].海洋环境科学,1993,12(3～4):69-75.
[2] 杨斌,钟秋平,张晨晓,等.钦州湾春季水质营养状况分析与评价[J].中国环境监测,2013,29(5):103-106.
[3] 杨斌,方怀义,许丽莉,等.钦州湾水质污染时空变化特征及驱动因素[J].海洋环境科学,2017,36(6):877-883.
[4] 韦蔓新,赖廷和,何本茂.防城湾水质特征及营养状况趋势研究[J].海洋通报,2003,22(1):44-49.
[5] 中华人民共和国国家标准.《海洋监测规范》(海水分析)(GB 17378.4-2007) [S].北京:中国标准出版社,2007:79-119.
[6] 韦蔓新,童万平,赖廷和,等.钦州湾内湾贝类养殖海区水环境特征及营养状况初探[J].黄渤海海洋,2001,19(4):51-55.
[7] 国家环境保护总局.《海水水质标准》(GB 3097-1997) [S].北京:中国环境科学出版社,1997:15-21.
[8] 韦蔓新,赖廷和,何本茂.广西钦州湾内湾贝类养殖海区三氮的含量和百分组成[J].台湾海峡,2001,20(4):441-446.
[9] 邱绍芳,侍茂崇,陈波.钦州湾潮流特征分析[J].海洋通报,2003,22(3):9-14.
[10] Bianchi T.Biogeoehemistry of Estuaries[M].New York:Oxford University Press,2007.
[11] 莫永杰.钦州湾溺谷湾地貌、沉积与物质运移[J].海洋通报,1993,12(5):56-61.
[12] Gaillardet J,Dupré B,Louvat P,et al.Globat silicate weathering and CO2 consumption rates deduced from the chemistry of large rivers[J].Chemical Geology,1999(159):3-30.
[13] Cai W J,Dai M H,Wang Y C,et al.The biogeochemistry of inorgan ic carbon and nutrients in the Pearl River estuary and the adjacent Northem South China Sea.Continental Shelf Research,2004(24):1301-1319.
[14] Turner R E,Rabalais N N,Justic D,et al.Future aquatic nutrient limitations[J].Marine Pollution Bulletin,2003(46):1032-1034.
[15] Harris G P.Phytoplankton ecology:structure,function and fluctuation[M].New York:Champman and Hall Press,1986.
[16] D,Rabalais N N,Turner R E,et al.Changes in nutrient structure of river-dominated coastalwaters Stoichiometric nutrient balance and its consequences[J].Estuarine,Coastal and shelf Science,1995(40):339-356.
[17] Brow N E J,Button D K.Phosphate-limited growth kinetics of Selanastrum capricomatum(Chlorophyceae)[J].Journal of Phycology,1979(15):305-311.
[18] Peery M J.Eppley R W.Phosphate uptake by phytoplankton in the central North Pacific Ocean[J].Deep-Sea Research,1981(28):39-49.
[19] Nelson D M,Brzezinski A.Kinetics of silicate acid uptake by natural diatom assemblages in two Gulf and Stream warm-core rings[J].Marine Ecology Progress Series,1990(62):283-292.
[20] 孙耀,陈聚法,张友篪.胶州湾海域营养状况的化学指标分析[J].海洋环境科学,1993(Z1):25-31.
[21] 韦蔓新,赖廷和,何本茂.防城港水质特征及营养状况趋势研究[J].海洋通报,2003,22(1):44-49.
[22] 丘耀文.大亚湾营养物质变异特征[J].海洋学报,2001,23(1):85-93.
[23] 邹景忠,董丽萍,秦保平.渤海湾富营养化和赤潮问题的初步探讨[J].海洋环境科学,1983,2(2):41-54.
[24] 刘彬昌.黄骅近海及滩涂水域环境与赤潮形成初探[J].海洋环境科学,1993,12(3～4):69-75.