| 东山湖水体无机氮年际变化及其来源分析 |
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| 引用本文： | 彭进平,谢卓佳,吴雅红,黄上信.东山湖水体无机氮年际变化及其来源分析[J].云南地理环境研究,2007,19(3):36-39. |
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| 作者姓名： | 彭进平 谢卓佳 吴雅红 黄上信 |
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| 作者单位： | 1. 广东工业大学,轻工化工学院,广东,广州,510080
2. 广州市越秀区环保局,广东,广州,510012 |
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| 基金项目： | 广东工业大学青年基金（022030）、国家自然科学基金（50239030）联合资助. |
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| 摘 要： | 总结了城市湖泊总无机N及各无机氮素的年际变化和不同水期的年际变化，结果表明：总无机N年际变化呈波浪式；不同水期中，总无机N与NH4^＋-N以枯水期为最丰，而NO3^--N及NO2^-N则以平水期为相对最丰。同时分析了水体无机氮素的来源，结果显示汛期水流中营养物的滞留及底泥含氮成分的释放是湖泊水体无机氮素的主要来源，并计算了滞留系数及内源性负荷，分别为0．507、10．3％。此外，拟合分析了水体无机氮素间的关系，总无机N与NH4^＋-N有明显正相关关系，相关系数达0．997。
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| 关 键 词： | 无机氮 年际变化 东山湖 |
| 文章编号： | 1001-7852（2007）03-0036-04 |
| 修稿时间： | 2006-07-132006-10-27 |
A STUDY ON INORGANIC NITROGEN ANNUAL CHANGE OF URBAN LAKE |
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| PENG Jin-phag,XIE Zhuo-jia,WU Ya-hong,HUANG Shang-xin.A STUDY ON INORGANIC NITROGEN ANNUAL CHANGE OF URBAN LAKE[J].Yunnan Geographic Environment Research,2007,19(3):36-39. |
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| Authors: | PENG Jin-phag XIE Zhuo-jia WU Ya-hong HUANG Shang-xin |
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| Institution: | (1.Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 0510080, Guandong, China; 2.Yuexiu District Environment Protection Bureau, Guangzhou 510012, Guandong, China |
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| Abstract: | The annual change and different rain period annual change of TIN and MIN in the urban lake had summarized. The results showed that the annual change of TIN was like wave form, and in different flow period, TIN and NH4＋^--N was abundance in low-flow period, NO3-N and NO2^--N was abundance in mean-flow period. The source of TIN and MIN in the urban lake had analyzed too, the results showed that retention of rainy period and liberation of the sediment were the main source, the retention ratio and internal loading separately were 0.507, 10.3%. In addition, the relationship of different inorganic nitrogen in urban lake had analyzed, the result showed that the total inorganic nitrogen had obvious co-relational ship with NH4^＋-N, the correlation coefficient was 0.997. |
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| Keywords: | inorganic nitrogen annual change Dongshan lake |
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