| 渤海湾可溶性无机氮时空变异状况分析 |
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| 引用本文： | 戴明新,彭士涛,毛天宇,白志鹏.渤海湾可溶性无机氮时空变异状况分析[J].环境科学研究,2009,22(4):386-390. |
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| 作者姓名： | 戴明新 彭士涛 毛天宇 白志鹏 |
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| 作者单位： | 1.南开大学环境科学与工程学院,天津 300071 |
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| 基金项目： | 科学技术部科研院所技术开发研究专项基金，中央级公益性科研院所基本业务费专项资金项目，交通部天津水运工程科学研究科技开发基金 |
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| 摘 要： | 以渤海湾17个监测点11年来可溶性无机氮(DIN)监测数据为研究对象，采用箱线图，相关分析，Mann-Kendall及样条插值等技术方法，分析渤海湾1996—2006年17个监测点ρ(DIN)的统计学特征、季节差异性和时空变化状况，以及引起ρ(DIN)时空变化的原因.结果表明:各监测时期渤海湾ρ(DIN)大多表现为正偏态分布. 在33个监测时段内，2号,4号和6号监测点所在海区ρ(DIN)最高，说明陆源污染及港口发展对渤海湾ρ(DIN)的贡献不容忽视. 丰水期ρ(DIN)与平水期显著相关，而枯水期ρ(DIN)与丰水期和平水期的相关性不显著. 在时间特征上，ρ(DIN)表现为先增加后平稳而后快速增加的趋势；在空间分布上，ρ(DIN)表现为北高南低，近岸高离岸低的趋势.
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| 关 键 词： | 渤海湾 可溶性无机氮 时空变异 |
| 收稿时间： | 2008/8/4 0:00:00 |
| 修稿时间： | 2008/10/6 0:00:00 |
Study on the Spatial-Temporal Variation of Dissolved Inorganic Nitrogen in Bohai Bay |
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| DAI Ming-xin,PENG Shi-tao,MAO Tian-yu and BAI Zhi-peng.Study on the Spatial-Temporal Variation of Dissolved Inorganic Nitrogen in Bohai Bay[J].Research of Environmental Sciences,2009,22(4):386-390. |
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| Authors: | DAI Ming-xin PENG Shi-tao MAO Tian-yu and BAI Zhi-peng |
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| Institution: | 1.College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China2.Laboratory of Environmental Protection in Water Transport Engineering, Tianjin Research Institute for Water Transport Engineering, Tianjin 300456, China |
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| Abstract: | We studied the characteristics of dissolved inorganic nitrogen(DIN) from 17 monitoring sites in Bohai Bay over the past 11 years.The statistical characteristics,seasonal differences and spatial-temporal variation of DIN in the research area were analyzed using box-plots,correlation analysis,Mann-Kendall and spline interpolation methods.The reasons causing DIN mass concentration variation at Bohai Bay were also analyzed.The results showed that the DIN mass concentrations were mostly positively skewed,and the... |
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| Keywords: | Bohai Bay dissolved inorganic nitrogen (DIN) spatial-temporal variation |
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