| 摘要: |
| 为保护涠洲岛珊瑚礁海洋公园的海洋环境，促进其海洋生态的可持续发展，文章根据2013—2017年该区9个站位的海洋环境监测数据，选取化学需氧量（COD）、石油类（Oil）、溶解氧（DO）、无机氮（DIN）和无机磷（DIP）5种海水因子，分别采用污染因子分类评价、单因子污染指数评价、有机污染指数评价和水质综合指数评价的方法，对海水因子的含量和分类以及海水水质进行评价。研究结果表明：各因子的平均含量大部分符合海水水质一类标准；COD和DIP未对海水环境造成污染，Oil从常态因子迅速上升为关键因子又逐渐下降为常态因子，DO从关键因子迅速下降为常态因子，DIN从常态因子迅速上升为关键因子；海水中DO超标，基本未受有机污染，水质整体状况为清洁。 |
| 关键词: 涠洲岛 海水质量 水质评价 海洋公园 海洋环境 |
| DOI： |
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| 基金项目:国家海洋局南海分局海洋科学技术局长基金资助项目（1652）. |
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| Classification and Evaluation of Seawater Factors in Coral Reef Marine Park of Weizhou Island |
| CHEN Jiyi,LIU Baoliang,WEI Chunlei |
| Beihai Marine Environment Monitoring Center Station，SOA |
| Abstract: |
| The monitoring data of marine environment of 9 stations were analyzed between 2013 to 2017,chemical oxygen demand (COD),petroleum(Oil),dissolved oxygen(DO),inorganic nitrogen(DIN) and inorganic phosphorus(DIP) were selected as five seawater factors,in order to protect the marine environment of Weizhou Island Coral Reef Ocean Park and promote the sustainable development of its marine ecology.The content and classification of marine water factors and the quality of seawater were evaluated by the methods of classification and evaluation of pollution factors,single factor pollution index,organic pollution index and water quality comprehensive index.The results showed that the average content of each factor was mostly lower than the first class of seawater quality regulated by the GB 3097—1997 standard,COD and DIP did not pollute seawater environment,Oil rapidly increased from normal factor to key factor and gradually reduced to normal factor,DO rapidly reduced from key factors to normal factors,DIN increased rapidly from normal factors to key factors.DO in seawater was out of standard,basically free from organic pollution,and the overall water quality was clean. |
| Key words: Weizhou island,Water quality,Water quality evaluation,Ocean park,Marine environment |
