The Annual Variations of Major Nutrients and Assessments about Environmental Impacts of Xiangshan Bay East China Sea

Abstract:

The 30 years’ annual variations of major nutrients dissolved inorganic nitrogen(DIN) and dissolved inorganic phosphorus(DIP) in Xiangshan Bay East China Sea between 1982 and 2011 were reported. The results showed that the concentrations of nitrogen and phosphorus nutrients increased year by year, consistent with the trend of nitrogen and phosphorus consumption in our country. Inorganic nitrogen was the main pollutant, then was inorganic phosphorus in Xiangshan harbor. The annual average change of DIN ranged from 0.21 to 0.76 mg∙dm^-3 while DIP ranged from 0.018 to 0.054 mg∙dm^-3. And the change trend of DIN and DIP was as following: winter > autumn > summer > spring. The DIN and DIP in Xiangshan horbor exceeded the standard limits greatly, the water quality in culture areas exceeded national criteria for sea water Level IV and most water qualities were inferior Level IV.

• Periodical: Applied Mechanics and Materials (Volumes 316-317)
• Pages: 395-399
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.316-317.395
• Online since: April 2013
• Authors: Gen Hai Zhu, Jian Qian, Li Hong Chen, Mao Jin, Jing Jing Liu, Jian Zhang
• Keywords: Annual Variations, Assessment, Nutrient, Xiangshan Bay

References

[1] Assessment on the Environment Monitoring of Xiang San Port, Marine environmental science, 1995,14(4), pp.57-63.

[2] Zheng Yun-long, ZHU Hong-wen, LUO Yi-hua, Assessment on the situation of water quality at Xiangshan Port, Marine Environmental Science, 2000，19(1), pp.56-59.

[3] Cai Yanhong, XIANG Youtang, Environment Quality Assessment of the Mariculture Zone at Xiangshan Harbor, Marine science bulletin, 2002, 21(4), pp.91-95.

[4] Ning Xiu-ren, Hu xi-gang, et al., the research and evaluation on culture ecology and pot pisciculture breeding capacity at Xiangshan Harbor, Ocean Press, Beijing, 2003, pp.25-32.

[5] Zhang Li-XU,MA Yue, The dynamic variation of the water quality in the red tide-monitoring area of Xiangshan Harbor, Marine environmental science, 2004,23(1), pp.25-28.

[6] Zhang Li-XU,REN Song, JIANG Xiao-sha, Characteristics polluted by nitrogen and phosphorus and potential eutrophication assessment in Xiangshan Harbor, Marine environmental science, 2005, 24(3), pp.68-71.

[7] Zhang Li-xu，JIANG Xiao-shan，CAI Yan-hong, Characteristics of nutrient distributions and eutrophicationin seawater of the Xiangshan Harbor, Marine environmental science, 2008, 27(5), pp.488-491.

[8] Luo Yi-hua, Water Quality Actualities and Water Pollution Control,Measures at Xiangshan Port, Pollution control technology, 2008, 21(3) , pp.48-50.

[9] Zeng Jiang-ning, Pan Jian-ming, Liang Chu-jin, et al., the ecological environmental comprehensive investigation report in the key harbor of Zhejiang Province, Ocean Press, 2011, pp.39-73.

[10] Lin Bao, Li Jia-kang, Certain problems and countermeasures of fertilizer, Phosphate & Compound Fertilizer, 1997, 12(2), pp.1-5.