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DYNAMIC VARIATION OF NITROGEN CONTENT IN THE SECOND SONGHUA RIVER

刘景双 于君宝

刘景双, 于君宝. DYNAMIC VARIATION OF NITROGEN CONTENT IN THE SECOND SONGHUA RIVER[J]. 中国地理科学, 1999, 9(4): 368-372.
引用本文: 刘景双, 于君宝. DYNAMIC VARIATION OF NITROGEN CONTENT IN THE SECOND SONGHUA RIVER[J]. 中国地理科学, 1999, 9(4): 368-372.
Liu Jingshuang, Yu Junbao. DYNAMIC VARIATION OF NITROGEN CONTENT IN THE SECOND SONGHUA RIVER[J]. Chinese Geographical Science, 1999, 9(4): 368-372.
Citation: Liu Jingshuang, Yu Junbao. DYNAMIC VARIATION OF NITROGEN CONTENT IN THE SECOND SONGHUA RIVER[J]. Chinese Geographical Science, 1999, 9(4): 368-372.

DYNAMIC VARIATION OF NITROGEN CONTENT IN THE SECOND SONGHUA RIVER

基金项目: the National Natural Science Foundation of China

DYNAMIC VARIATION OF NITROGEN CONTENT IN THE SECOND SONGHUA RIVER

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出版历程
  • 收稿日期:  1999-06-12
  • 刊出日期:  1999-12-20

DYNAMIC VARIATION OF NITROGEN CONTENT IN THE SECOND SONGHUA RIVER

    基金项目:  the National Natural Science Foundation of China

摘要: 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.

English Abstract

刘景双, 于君宝. DYNAMIC VARIATION OF NITROGEN CONTENT IN THE SECOND SONGHUA RIVER[J]. 中国地理科学, 1999, 9(4): 368-372.
引用本文: 刘景双, 于君宝. DYNAMIC VARIATION OF NITROGEN CONTENT IN THE SECOND SONGHUA RIVER[J]. 中国地理科学, 1999, 9(4): 368-372.
Liu Jingshuang, Yu Junbao. DYNAMIC VARIATION OF NITROGEN CONTENT IN THE SECOND SONGHUA RIVER[J]. Chinese Geographical Science, 1999, 9(4): 368-372.
Citation: Liu Jingshuang, Yu Junbao. DYNAMIC VARIATION OF NITROGEN CONTENT IN THE SECOND SONGHUA RIVER[J]. Chinese Geographical Science, 1999, 9(4): 368-372.

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