Eutrophication status assessment in the Laizhou Bay, Bohai Sea: Further evidence for the ecosystem degradation
文献类型： 外文期刊
作者： Wei, Yuqiu 1 ; Cui, Hongwu 1 ; Hu, Qingjing 1 ; Bai, Ying 1 ; Qu, Keming 1 ; Sun, Jun 3 ; Cui, Zhengguo 1 ;
作者机构： 1.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Key Lab Sustainable Dev Marine Fisheries, Minist Agr & Rural Affairs, Qingdao 266071, Peoples R China
2.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Fisheries Sci & Food Prod Proc, Qingdao 266071, Peoples R China
3.China Univ Geosci Wuhan, State Key Lab Biogeol & Environm Geol, Wuhan 430074, Peoples R China
4.Tianjin Univ Sci & Technol, Res Ctr Indian Ocean Ecosyst, Tianjin 300457, Peoples R China
5.China Univ Geosci, Inst Adv Marine Res, Guangzhou 511462, Peoples R China
6.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao 266071, Peoples R China
关键词： Laizhou Bay; Human activities; Water quality; Pollution; Eutrophication
期刊名称：MARINE POLLUTION BULLETIN （ 影响因子：7.001； 五年影响因子：7.301 ）
ISSN： 0025-326X
年卷期： 2022 年 181 卷
页码：
收录情况： SCI
摘要： Laizhou Bay is plagued by many environmental problems (e.g., acidification and eutrophication) that are likely to increase in the coming decades along with social and demographic trends. We thus conducted 12 cruises from July 2019 to December 2021 in the Laizhou Bay to evaluate the potential influences of human activities on its eutrophication status. The results showed that the parameters of dissolved inorganic nitrogen (DIN) and oxygen (DO) exceeded the water quality standard in some cases during the past 3 years, suggesting DIN and DO were the crucial factors controlling water quality in the bay. Meanwhile, DIN was identified as a major pollutant in the region, and played an important role in driving the phytoplankton dynamics. Furthermore, with the increases in human-related nutrient inputs (especially DIN), the bay environment reached the mild eutrophication level and was probably at risk from excessive nutrient loads at present, further evidencing the ecosystem degradation.
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