象山港Chl-a的分布及其与环境因子关系研究  

Chl-aDistribution and Correlationship Between Environmental Parameters in Xiangshan Bay

作　　者：蔡惠文[1,2] 卓丽飞 吕华庆[1] 石钢德 

机构地区：[1]浙江海洋学院,浙江舟山316022 [2]国家海洋设施养殖工程技术中心,浙江舟山316022 [3]宁波市象山港海洋环境监测站,浙江宁波315141

出　　处：《中国海洋大学学报（自然科学版）》2015年第8期63-70,共8页Periodical of Ocean University of China

基　　金：科技部支撑计划项目(2012BAB16B02);国家海洋局公益性行业科研专项(201305009-2);国家自然科学基金项目(41206088);浙江省自然科学基金项目(LQ12D06001);浙江省海洋渔业局项目(浙海渔计[2010]218号)资助

摘　　要：根据2012年5、8、10月在象山港海域的监测资料,分析了该海域Chl-a的时空分布特征,及其与水温、盐度、溶解氧、COD以及营养盐等主要环境因子的相关关系。结果表明：象山港海域Chl-a浓度在0.27~27.29μg/L范围内,平均浓度为2.80μg/L。海域Chl-a浓度的季节性变化非常明显,峰值出现在夏季,而秋季浓度最低;并且具有从内湾港顶向港外逐渐递减的空间分布规律。相关性分析显示,在夏季,影响Chl-a含量的主要因素是盐度和溶解氧;在秋季,Chl-a与活性磷酸盐和硅酸盐间的相关性非常显著,但与无机氮（DIN）不具显著意义相关关系。总体看来,象山港海域Chl-a的时空分布受到海域水动力条件、海水养殖活动等的共同影响,夏季还可能受到台风影响。The spatial and temporal variation of Chl-ain Xiangshan Bay was presented based on the survey data in May,August and October,2012.The correlation between Chl-aand environmental parameters were also analyzed.The results showed that the Chl-acontent varied between 0.27~27.29μg/L with the mean value of 2.8μg/L in Xiangshan Bay.The highest Chl-aappeared at the top of the Bay and then it declined with the distance to the open sea area.The Chl-aconcentration was high in summer and low in spring with the lowest value occurred in autumn which presented a profound seasonal variation.The correlation analysis showed that the Chl-awas mainly related to salinity and dissolved oxygen in summer,however,in autumn there were significant correlations with phosphorus（r=0.84,n=13,p≤0.01）and dissolved silicate（r=0.81,n=13,p≤0.01）.There was only weak relation between dissolved inorganic nitrogen and Chl-a.A conclusion can be arrived based on the results that both the hydrodynamic situation and human activities（e.g.aquaculture）will impact the distribution of Chl-ain Xiangshan Bay,and＂Typhoon＂sometimes will possibly contribute to that in summer as well.

关 键 词：象山港 CHL-A 硅酸盐 磷酸盐 环境因子 

分 类 号：P734.4[天文地球—海洋化学]