| Wu Yuduan,Zeng Jiye,Zheng Zhihong,Luo Xiaohong. 1990. Fertility of domestic sewage and eutrophication in estuarine harbor. Acta Oceanologica Sinica, (2):277－282 |
| Fertility of domestic sewage and eutrophication in estuarine harbor |
| Fertility of domestic sewage and eutrophication in estuarine harbor |
| Received:August 16, 1989 Revised:November 02, 1989 |
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| Author Name | Affiliation | | Wu Yuduan | Institute of Environmental Science, Xiamen University, Xiamen, Fujian, China | | Zeng Jiye | Institute of Environmental Science, Xiamen University, Xiamen, Fujian, China | | Zheng Zhihong | Institute of Environmental Science, Xiamen University, Xiamen, Fujian, China | | Luo Xiaohong | Institute of Environmental Science, Xiamen University, Xiamen, Fujian, China |
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| Abstract: |
| The concentration and partition ratio of various speciations of nutrients in domestic sewage were determined.The transformation and transportation among the speciations,as well as their biological effects during sewage-seawater mixing were simulated in laboratory.The results are compared with field observation and the following findings are:ⅰ) The suitable range of ratio DIN/DIP in seawater for growth of phytoplankton in subtropical estuary and harbor is quite wide.It could grow well even in the range of 15-55 in atom ratio,and is independ of the variation in levels of N and P.ⅱ) The transformation rate among the speciations of phosphorus is within the range of 0.5 to 1.1 μmol/d.ⅲ) Phytoplankton uptakes P prior to N during its growth.The growth rate for Skeletonema costatum (the major species) and field algae are 0.34-0.58/d and 0.30-0.31/d,respectively.ⅳ) The red tide species Prorocentrum micans could become the dominant species to a density 107 cells/L after Skeletonema costatum blooms and phosphorus is almost exhausted. |
| 中文摘要: |
| The concentration and partition ratio of various speciations of nutrients in domestic sewage were determined.The transformation and transportation among the speciations,as well as their biological effects during sewage-seawater mixing were simulated in laboratory.The results are compared with field observation and the following findings are:ⅰ) The suitable range of ratio DIN/DIP in seawater for growth of phytoplankton in subtropical estuary and harbor is quite wide.It could grow well even in the range of 15-55 in atom ratio,and is independ of the variation in levels of N and P.ⅱ) The transformation rate among the speciations of phosphorus is within the range of 0.5 to 1.1 μmol/d.ⅲ) Phytoplankton uptakes P prior to N during its growth.The growth rate for Skeletonema costatum (the major species) and field algae are 0.34-0.58/d and 0.30-0.31/d,respectively.ⅳ) The red tide species Prorocentrum micans could become the dominant species to a density 107 cells/L after Skeletonema costatum blooms and phosphorus is almost exhausted. |
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