海洋科学2023，Vol.47Issue(11)：35-44,10.DOI:10.11759/hykx20230326001
秋季浙闽沿岸溶解态Cu分布特征及其影响因素
Distributions and controlling factors of dissolved Copper in the Zhe-Min coastal region in autumn
摘要
Abstract
Copper(Cu)is an essential trace metal for marine phytoplankton and plays a critical role in primary ma-rine productivity.Rivers are an important source of Cu for the ocean,and estuaries and marginal seas play an im-portant role in modifying the transport of riverine Cu to oceans.However,the biogeochemical behavior of Cu in the Zhe-Min coastal region is not yet fully understood.This study aims to investigate dissolved Cu(dCu)concentra-tions and spatial distribution in the surface waters of the Zhe-Min coastal region and adjacent waters in November 2021 using automatic solid phase extraction coupled with inductively coupled plasma technology.The results show that the dCu concentrations ranged from 3.38 to 26.28 nmol·L-1,with an average dCu concentration of 11.66±5.83 nmol·L-1.The spatial distribution of dCu was higher in the north and lower in the south,higher near the shore,and lower far from the shore.Further,dCu exhibited highly conservative behavior in the Zhe-Min coastal region and exhibited a significantly negative correlation with salinity,indicating its potential use as an indicator of anthropogenic influence.Finally,correlation analysis showed that the biogeochemical behavior and distributions of dCu in the surface waters of the Zhe-Min coastal region and adjacent waters may be affected by terrigenous input,water mass mixing,chemical flocculation and adsorption,and other processes.These findings contribute to a better understanding of the biogeochemical processes of Cu in oceans and provide a scientific basis for exploring the ecological and environmental changes in the Zhe-Min coastal region.关键词
浙闽沿岸/溶解态铜/盐度/水域/人为影响Key words
Zhe-Min Coast/copper/salinity/water area/anthropogenic influence分类
海洋科学引用本文复制引用
阮雅青,张瑞峰..秋季浙闽沿岸溶解态Cu分布特征及其影响因素[J].海洋科学,2023,47(11):35-44,10.基金项目
国家自然科学基金委重大项目课题"海洋荒漠区常量和微量营养物质的来源、通量及其时空分布格局"(41890801)National Natural Science Foundation of China"The sources,fluxes and spatial-temporal structures of macro-and micro-nutrients in the oligotrophic ocean",No.41890801 （41890801）
