本文選題：雙島灣 + 營養(yǎng)鹽��； 參考：《科學技術與工程》2016年25期

【摘要】：根據(jù)2015年6月對威海雙島灣的海洋生態(tài)環(huán)境調查資料,分析了DIN、PO_4-P和COD的特征及限制性因子。綜合運用單因子指數(shù)、水體富營養(yǎng)化指數(shù)和有機污染狀況評價等方法對該海域富營養(yǎng)化程度進行了評價。結果顯示:NO_3-N為DIN的主要存在形式,DIN為雙島灣的主要污染因子,DIN、PO_4-P和COD平均濃度為164.99μg/L、4.51μg/L和0.93 mg/L。除部分站位DIN外,其余站位DIN、PO_4-P及COD濃度均符合一類海水水質標準。營養(yǎng)鹽及COD濃度平面分布總體呈現(xiàn)南高北低,灣內高于灣外趨勢。N/P均值為83.04,營養(yǎng)結構特征為磷限制。對比歷史數(shù)據(jù),雙島灣N/P失衡呈逐年加劇趨勢。富營養(yǎng)化指數(shù)均值為0.16,海水有機污染指數(shù)變化區(qū)間為-0.62~1.02,與富營養(yǎng)化指數(shù)法相比,海水有機污染指數(shù)法結論更為客觀。
[Abstract]:Based on the survey data of marine ecological environment in Shuangdao Bay of Weihai in June 2015, the characteristics and restrictive factors of DINPPO4-P and COD were analyzed. The eutrophication degree of the sea area was evaluated by means of single factor index, eutrophication index and organic pollution. The results show that the average concentration of DINPO4-P and COD are 164.99 渭 g / L and 4.51 渭 g / L and 0.93 mg / L respectively. The concentrations of DINPPO4-P and COD in the rest of the stations, except for some of the DIN stations, were in accordance with the first class standard of seawater quality. The distribution of nutrient and COD concentrations was generally high in the south and low in the north. The mean value of N / P in the bay was 83.04, and the nutrient structure was limited by phosphorus. Compared with the historical data, the N / P imbalance in the double Island Bay is increasing year by year. The mean value of eutrophication index is 0.16, and the variation range of seawater organic pollution index is -0.62n1.02. Compared with the eutrophication index method, the conclusion of seawater organic pollution index method is more objective.
【作者單位】： 山東省海洋資源與環(huán)境研究院山東省海洋環(huán)境監(jiān)測中心山東省海洋生態(tài)修復重點實驗室;
【基金】：海洋公益性行業(yè)科研專項(201205023) 國家自然科學基金青年項目(41206120)資助
【分類號】：X824;X55

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本文編號：1895957