摘要
基于2013年9月辽东湾北部海区的水质监测资料,以化学需氧量(COD)、溶解氧(DO)、总无机氮(DIN)和活性磷酸盐为海水富营养程度评价指标,以污染因子贡献率与层次分析法求得综合权重,应用模糊综合评判模型评价该海域的海水富营养化情况,分析了影响海水富营养化的指标以及具体的影响因素。结果表明:辽东湾北部海区近海地区属于重度富营养程度,而越往远岸海区则海水富营养有所减轻。影响辽东湾北部海区的主要影响因子为无机氮;辽东湾北部海区富营养化程度主要受沿岸河流注入与海水养殖业的影响。
Based on the monitoring data of water quality in September 2013 in the north of Liaodong Bay area,chemical oxygen demand(COD),dissolved oxygen(DO),total inorganic nitrogen(DIN) and active phosphate for water rich nutrition indicators,to pollution factor contribution rate and hierarchy analysis method to obtain the comprehensive weight.With the application of fuzzy comprehensive evaluation model evaluation eutrophication of the sea water in the sea,the analysis of the influence of sea water rich nutrition index and impact of specific factors.The results showed that the northern Liaodong Bay offshore area belong to severe eutrophication degree,and more to the far shore sea area is eutrophication has been reduced.Main factors which influence the effect of Liaodong Bay in the north area of inorganic nitrogen;Liaodong Bay in the north area of rich nutrition level is mainly affected by rivers into the influence and mariculture.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2016年第S2期402-406,共5页
Environmental Science & Technology
基金
大连理工大学海岸和近海工程国家重点实验室开放基金(LP1402)
国家海洋局近岸海域生态环境重点实验室基金(201309)
关键词
辽东湾北部海区
富营养化
权重
模糊综合评判
northern liaodong bay area
eutrophication
weighted fuzzy
comprehensive evaluation
