大陈海域海水水质综合评价

Comprehensive Evaluation of Seawater Quality in Dachen Sea Area

为响应海洋生态文明建设,保护海洋环境,以生态浮标在线监测系统采集到的2020年大陈海域的水质资料为基础,分析大陈海域海水水质的现状;选取水体中溶解氧、无机氮和磷酸盐的监测数据,以模糊数学为理论基础,利用降半梯形分布函数作为隶属度函数得到模糊关系矩阵,运用计算超标比方法确定权重,对大陈海域的水环境质量等级进行综合评价。评价结果表明,2020年大陈海域的水质为Ⅰ类,真实地反映了海水水质现状。

In response to the construction of Marine ecological civilization,to protect the Marine environment,the current situation of sea water quality in Dachen Sea was analyzed with the water quality data of Dachen Sea collected by the Ecobuoy Online Monitoring System in 2020.The monitoring data of dissolved oxygen,inorganic nitrogen and phosphate in water were selected,and the fuzzy relational matrix was obtained by using the half-trapezoidal distribution function as membership function on the theoretical basis of fuzzy mathematics,and the weight was determined by calculating the method of overstandard ratio,so as to comprehensively evaluate the water environmental quality grade of Dachen sea area.The evaluation results show that the water quality in 2020 is I type water quality.It truly reflects the water quality of Dachen Sea.