| 长江水系河水氮污染 |
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| 引用本文： | 陈静生,高学民.长江水系河水氮污染[J].环境化学,1999,18(4):289-294. |
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| 作者姓名： | 陈静生 高学民 |
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| 作者单位： | 北京大学城市与环境学系!北京100871 |
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| 基金项目： | 国家自然科学基金资助项目:No.49671017 |
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| 摘 要： | 对１９９０年长江流域５７０个水文站约８０００测次数据的统计分析表明，长江干流氮污染水平自上游向下游有明显增强的趋势；相当一部分站点八十年代中期河水总氮含量比１９６０年前后增加５－１０倍；河水氮含量的年内变化不同区域有各自的特点；河水氮污染的差异与区域人口的经济发展的水平有关。氮污染促进了河水的酸化过程。
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| 关 键 词： | 河流 氮污染 长江水系 中国 |
NITROGEN CONTAMINATION IN THE YANGTZE RIVER SYSTEM, CHINA |
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| Chen Jingsheng Gao Xuemin Xia Xinghui He Dawei.NITROGEN CONTAMINATION IN THE YANGTZE RIVER SYSTEM, CHINA[J].Environmental Chemistry,1999,18(4):289-294. |
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| Authors: | Chen Jingsheng Gao Xuemin Xia Xinghui He Dawei |
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| Abstract: | The data of about 8000 survey times and 570 hydrologic stations which were gauged in 1990 are analyzed. The results indicate that nitrogen contamination level of Yangtze mainstream has a raising trend from upper reaches to lower reaches; And TN content of a quantity of stations in middle 1980s is 5-10 times than that in 1960s. And the characteristics of seasonal variance of water nitrogen content vary with watersheds; and the difference of nitrogen contamination level is related to the regional population and development; and nitrogen contamination accelerates the acidification of river water. |
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| Keywords: | nver nitrogen contamination |
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