Abstract
The space-time variation laws of nitrogen content in different river sections, water periods and years in the Second Songhua River in China is described in detail. The results show that there is direct relation between the nitrogen content variation in river water and that in wastewater from cities and runoff water of both banks of the river. Nitrate and nitrite contents in water in flood period are higher than that in mid and low water periods. In flood period, nitrate content in water increases gradually with the extension of river section, ammonia content in polluted river section is higher than that in unpolluted river section. Nitrate and nitrite contents in water in the flood, mid and low water periods from 1985 to 1989 were slightly higher than that from 1980 to 1984 and from 1990 to 1994, ammonia content in water increased annually.
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References
Fu Yingjiang et al., 1992. Proceedings of the Region Environment. Beijing: Beijing Science and Technology Press, 229–234. (in Chinese)
Wang Renhua et al., 1982. Proceedings of the Second Songhua River Symposium on Environmental Science. Changchun: Jilin People’s Press, 53–61. (in Chinese)
Wang Renhua et al., 1992. Environmental Problems Research of Songhua River Valley. Beijing: Science Press, 55–66. (in Chinese)
Xu Zhiyi et al., 1992. Environmental Problems Research of Songhua River Valley. Beijing: Science Press, 94–97. (in Chinese)
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Supported by the National Natural Science Foundation of China.
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Liu, J., Yu, J. Dynamic variation of nitrogen content in the Second Songhua River. Chin. Geograph.Sc. 9, 368–372 (1999). https://doi.org/10.1007/s11769-999-0011-6
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DOI: https://doi.org/10.1007/s11769-999-0011-6