A study on the relationships of the nutrients near the Changjiang River estuary with the flow of the Changjiang River water

Shen Zhiliang

doi:10.1007/BF02850859

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A study on the relationships of the nutrients near the Changjiang River estuary with the flow of the Changjiang River water

OriginalPaper | Updated：2023-05-16

- A study on the relationships of the nutrients near the Changjiang River estuary with the flow of the Changjiang River water
- A study on the relationships of the nutrients near the Changjiang River estuary with the flow of the Changjiang River water
- 海洋湖沼学报（英文） 1993年11卷第3期页码：260-267
- Affiliations：
  
  Institute of Oceanology
- Author bio：
- Funds：
  
  Contribution No. 2191 from the Institute of Oceanology, Academia Sinica.
- DOI：10.1007/BF02850859
  中图分类号：
- 纸质出版：1993
- Accepted：
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A study on the relationships of the nutrients near the Changjiang River estuary with the flow of the Changjiang River water[J]. 海洋湖沼学报（英文）, 1993,11(3):260-267.

Zhiliang, S. A study on the relationships of the nutrients near the Changjiang River estuary with the flow of the Changjiang River water., Chin. J. Ocean. Limnol. 11, 260–267 (1993). https://doi.org/10.1007/BF02850859
A study on the relationships of the nutrients near the Changjiang River estuary with the flow of the Changjiang River water[J]. 海洋湖沼学报（英文）, 1993,11(3):260-267. DOI： 10.1007/BF02850859.

Zhiliang, S. A study on the relationships of the nutrients near the Changjiang River estuary with the flow of the Changjiang River water., Chin. J. Ocean. Limnol. 11, 260–267 (1993). https://doi.org/10.1007/BF02850859 DOI：

摘要

Abstract

Investigations from August

1985 to July

1986 showed that the high concentration area of PO4−P

SiO3−Si and NO3−N gradually reduced with the reduction of the area of the Changjiang River diluted water from summer

autumn to winter

and that the seasonal distributions and variations of the nutrients concentrations were mainly controlled by the river flow and were also related to the growth and decline of phytoplankton. The conservation of SiO3−Si and NO3−N in the estuary in the flood season was poorer than that in the dry season. The behaviour of PO4−P in the estuary shows that aside from biological removal

buffering of PO4−P is possible in the estuary. The highest monthly average concentrations and annual average concentrations

in the river mouth were respectively 0.88 and 0.57 μ mol/L for PO4−P

191.5 and 96.2 μ mol/L for SiO3−Si

and 81.6 and 58.6 μ mol/L for No3−N. The Changjiang’s annual transports of PO4−P

SiO3−Si and NO3−N to the sea were about 1.4×104 tons

204.4×104 tons and 63.6×104 tons respectively. The investigation shows that the seasonal variations of the nutrients transport closely correlate with that of the flow of the Changjiang River.

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Keywords

references

Zhang Fagao, Yang Guangfu and Shen Zhiliang, 1987. Effects of the Three Gorges Project on the hydrographical, hydrochemical and sedimentary environments of the Changjiang River estuary. Selected works on the impacts of the Changjiang River Three Gorges Project on the ecology and environment and study of possible countermeasures. Science Press, Beijing, pp. 369–402. (in Chinese)

Shen Zhiliang, Liu Xingjun and Lu Jiaping, 1988. Nutrients in seawater and interstitial water of the sediments in the Huanghe River estuarine area (November).Chin. J. Oceanol. Limnol. 6 (2): 104–114.

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