2013年夏季秦皇岛海域叶绿素a浓度分布及其与环境因子的关系  

Distribution ofhlorophyll a and its relationship with environmental factors in summer 2013

作　　者：王全颖 杜雨蒙 刘龙 石伟杰[1] 张永丰[1] 李莉[1] 张建乐[1] WANG Quanying;DU Yumeng;LIU Long;SHI Weijie;ZHANG Yongfeng;LI Li;ZHANG Jianle(Qinhuangdao Marine Environment Monitoring Central Station,SOA,Qinhuangdao 066002,China)

机构地区：[1]国家海洋局秦皇岛海洋环境监测中心站,河北秦皇岛066002

出　　处：《海洋湖沼通报》2022年第2期121-127,共7页Transactions of Oceanology and Limnology

基　　金：国家海洋公益性行业科研专项经费项目(201305003)。

摘　　要：基于2013年夏季对秦皇岛海域46个站位的调查数据,分析了叶绿素a浓度分布及其与环境因子(水温、盐度、化学需氧量、溶解氧、pH、活性磷酸盐、无机氮)的关系,并对秦皇岛海域营养状况进行了评价。结果表明,叶绿素a浓度范围为0.50~7.79μg·L^(-1),平均值为(2.10±1.38)μg·L^(-1),平面分布呈近岸高、离岸低的趋势。通过叶绿素a浓度与环境因子相关性分析以及氮磷比(N/P)分析发现,活性磷酸盐可能是叶绿素a浓度的主要控制因子。基于营养状态质量指数(NQI)和富营养化指数(EI)评价标准,秦皇岛海域整体营养状况表现为贫营养。Based on the survey data of 46 stations Qinhuangdao sea area in Summer2013,distribution of hlorophyll a concentration and its relationship with environmental factors water temperature,salinity,chemical oxygen demand,dissolved oxygen,active phosphate and inorganic nitrogen were,and the nutritional status of Qinhuangdao sea area was evaluated.The results showed that the concentration of chlorophyll a ranged from 0.50 to 7.79μg·L^(-1) with an average of 2.10±1.38μg·L^(-1).The horizontal distribution of chlorophyll a tended to near shore and off shore.Through the correlation analysis chlorophyll a concentration environmental factors and the analysis of nitrogen/phosphorus ratio(N/P),itfound that the active phosphate the main of chlorophyll a concentration.According to the evaluation of nutritional quality index(NQI)and eutrophication index(EI),the overall nutritional status of Qinhuangdao sea area was poor.

关 键 词：秦皇岛 叶绿素A 活性磷酸盐 富营养化 

分 类 号：P76[天文地球—海洋科学]