| 引用本文： |
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赖廷和,韦蔓新.廉州湾五项营养盐变化与环境因子的关系[J].广西科学院学报,2003,(1):35-39. [点击复制]
- Lai Tinghe,Wei Manxin.The Relation of Change of Five Nutrients and Environmental Factors in Lianzhou Bay[J].Journal of Guangxi Academy of Sciences,2003,(1):35-39. [点击复制]
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| 摘要: |
| 根据1996年12月及1997年7月调查廉州湾的资料,分析廉州湾水域五项营养盐:NO3-N、NO2-N、NH4-N、PO4-P、SiO3-Si的含量分布特征,并对五项营养盐与其它环境因子之间进行相关分析。结果表明:廉州湾水域NO3-N、NO2-N、PO4-P和SiO3-Si均具有丰水期明显高于枯水期的分布特征,NH4-N则与此相反。影响枯水期营养盐含量的主要因素是以江河径流影响为主、沿岸排污和水体自身再生补充影响为辅;但在丰水期,只有NO3-、NO2-与盐度之间呈良好负相关关系(相关系数分别为r=-0.805和r=-0.766,n=7),其它三项营养盐与盐度及其它环境因子均呈不相关关系,体现出暴雨后径流与沿岸排污综合影响的结果 |
| 关键词: 营养盐 分布特征 环境因子 |
| DOI： |
| 投稿时间：2002-06-23修订日期：2002-08-15 |
| 基金项目: |
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| The Relation of Change of Five Nutrients and Environmental Factors in Lianzhou Bay |
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Lai Tinghe, Wei Manxin
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| (Guangxi Institute of Oceanography, Beihai, 536000) |
| Abstract: |
| The distribution of contents of five nutrients is analyzed based on the investigation of December 1996 and July 1997 in Lianzhou Bay of Guangxi.The correlation analysis of the five nutrients (including NO3-N、NO2-N、NH4-N、PO4-P、SiO3-Si) and environmental factors is conducted.The contents of NO3 -N、NO2 -N、PO4 -P and SiO3 -Si in high water discharge period are higher than that in low water discharge period,and reverses for NH4 -N.The river runoff is the key factor affecting the contents of nutrients in low water discharge period.The sewage from shore and water self-recycle also have some influence.In high water discharge period,there is good negative correlativity of NO3-、NO2- to salinity (r=-0.805,r=-0.766, respectively, n=7), and no correlativity of PO4- and SiO3- to salinity.The results reveal the joint influence of runoff after heavy raining and sweage drainage from shore land. |
| Key words: nutrients distribution environmental factors |
