威海湾水域环境因子周年变化特征  

Environmental monitoring and evaluation of Weihai Bay seawater

作　　者：张少华 原永党 刘振林 施坤涛 宋宗诚 王同华 

机构地区：[1]威海市环翠区水产研究所,威海264200 [2]中国海监威海市环翠区大队,威海264200

出　　处：《中国生态农业学报》2008年第5期1248-1252,共5页Chinese Journal of Eco-Agriculture

基　　金：山东省科技攻关计划(2005310)资助

摘　　要：试验于2005-2006年对威海湾水温、透明度、pH值、DO、COD、油类、无机氮、活性磷等水域环境因子进行了周年监测,结果表明：威海湾年平均水温13.1℃,最高气温出现在8月（25.1℃）,最低气温出现在1月（1.1℃）,透明度在0.24-5.28 m之间,pH值为7.56-8.45,达到国家二类水质标准;DO为5.22-8.09mg.L^-1,年平均值为7.22 mg.L^-1,COD为0.201-1.531 mg.L^-1,无机氮为0.111-0.686 mg.L^-1;磷酸盐范围为0.016-0.036 mg.L^-1,威海湾内海水养殖区夏秋两季的富营养化指数（EI）〉1,表明威海湾中的主要污染源是N、P营养盐。同时根据监测结果对威海湾海水养殖区提出了相应的优化措施。From 2005 to 2006,we spotted monitored stations in Weihai Bay on monthly or quarterly basis for temperature,transparence,pH,dissolved oxygen,chemical oxygen demand,oil content,dissolved inorganic nitrogen,phosphate,etc.The results indicate that average seawater temperature at Weihai Bay is 13.1 °C,with the highest temperature（25.1 °C） occurring in August and the lowest（1.1 °C） occurring in January.Annual transparence ranges from 0.24 m to 5.28 m and pH ranges from 7.56 to 8.45,consistent with the national grade II seawater standard.Dissolved oxygen is within 5.22 ~ 8.09 mg·L-1,with an annual average of 7.22 mg·L-1.Chemical oxygen demand is 0.201 ~ 1.531 mg·L-1 while dissolved inorganic nitrogen is 0.111 ~ 0.686 mg·L-1.Phosphate content fluctuates between 0.016 mg·L-1 and 0.036 mg·L-1.In the summer and autumn,EI（Eutrophication Index） is larger than 1,indicating that the main contaminants are dissolved inorganic nitrogen and phosphate.Based on the findings proposals are advanced on marine aquiculture in Weihai Bay.

关 键 词：威海湾 水域环境 理化因子 海水养殖 

分 类 号：X145[环境科学与工程—环境科学] X830.3