Runoff characteristics of COD, BOD, C, N and P loadings from rivers to enclosed coastal seas
Runoff characteristics of COD, BOD, C, N and P loadings from rivers to enclosed coastal seas
复制标题
从河流到封闭沿海海域 COD、BOD、C、N 和 P 负荷的径流特征
DOI：
10.1016/0025-326x(91)90641-5
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发表时间：
1991
影响因子：
5.8
通讯作者：
S. Ebise
中科院分区：
文献类型：
--
作者：
Takanobu Inoue;S. Ebise
众所周知，碳（C）、氮（N）和磷（P）三种营养元素在封闭近海的富营养化中起着非常重要的作用。C、N、P的主要来源是河流的流入，而不是封闭海域沉积物的释放。在日本，表示河流和海洋有机污染的环境质量标准各不相同;在河流中，它是基于BOD，在海洋中，它是基于碱性CODMd。因此，这些不同的标准导致难以对从河流到封闭的沿海海域的水系统进行一致的水质管理。Hinuma河在1988年和1989年通过每周观测观测碱性CODMd、BOD、C、N和P的径流负荷。当流量增加时，增加比例的顺序是磷，其次是碳，氮。结果表明，88%的磷以颗粒态磷的形式流失，84%的氮以溶解态氮的形式流失;尽管氮的流失浓度几乎恒定，但大部分磷在高流量阶段流失。颗粒态磷进入近岸封闭海域后的行为是引起水体富营养化的重要因素。
It is well known that the three nutrient elements of carbon (C), nitrogen (N) and phosphorus (P), are very important in the eutrophication in enclosed coastal seas. The major source of the C, N and P is the inflow from rivers rather than the release from sediment in the closed sea. In Japan, the environmental quality standards which indicate organic pollution in both river and sea are different from one another; in a river, it is based on BOD and in the sea, on alkaline CODMd. Therefore, these different standards lead to difficulties in obtaining consistent water quality management of the water system from rivers to enclosed coastal seas. Hinuma River observed runoff loading of alkaline CODMd, BOD, C, N and P by weekly observation in 1988 and 1989. When the flow increases, the order of increasing ratio is phosphorus, followed by carbon, and nitrogen. It was found that 88% of phosphorus runs off in the form of particulate phosphorus and 84% of nitrogen runs off in the form of dissolved nitrogen; and though nitrogen runs off in an almost constant concentration, most phosphorus runs off during the high flow stage. The behavior of the particulate phosphorus after flowing in to the enclosed coastal sea is an important factor in eutrophication.