谭赛章,杨涛,可愚,刘材材,张昊飞.海洋表层沉积物中金属镉的来源解析[J].海洋通报,2019,(6):683-689
海洋表层沉积物中金属镉的来源解析
Source apportionment of metal Cd in the surfacemarine sediments
投稿时间:2018-12-18  修订日期:2019-02-25
DOI:
中文关键词:  长江口  表层沉积物    PCA/APCS受体模型  地统计学
英文关键词:Yangtse River Estuary  surface sediments  Cd  PCA/APCS receptor model  geostatistics
基金项目:国家重点研发计划 (2016YFC1402403;2017YFC1405002);东海分局青年科技基金项目 (201606)
作者单位E-mail
谭赛章 自然资源部东海环境监测中心上海 200137海洋赤潮灾害立体监测技术与应用国家海洋局重点实验室上海 200137 tansz@eastsea.gov.cn 
杨涛 自然资源部东海环境监测中心上海 200137海洋赤潮灾害立体监测技术与应用国家海洋局重点实验室上海 200137  
可愚 自然资源部东海环境监测中心上海 200137海洋赤潮灾害立体监测技术与应用国家海洋局重点实验室上海 200137  
刘材材 自然资源部东海环境监测中心上海 200137海洋赤潮灾害立体监测技术与应用国家海洋局重点实验室上海 200137  
张昊飞 自然资源部东海环境监测中心上海 200137海洋赤潮灾害立体监测技术与应用国家海洋局重点实验室上海 200137  
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中文摘要:
      利用 2015年 8月份对长江口及其邻近海域表层沉积物的监测数据,基于主成分分析/绝对主成分分数 (PCA/APCS)受体模型定量解析了重金属元素镉 (Cd) 的可能来源,并结合地统计学插值了 Cd的源贡献量的空间分布状况,结果表明沉 积物中镉污染主要存在 3个可能来源,源头及贡献率分别为工业污染 (18.8 %)、陆地径流输入 (66.0 %)、生物活动等自然因素 (13.6 %),并且各个源头贡献量具有不同的空间分布状况,其中工业污染的高值区主要集中在靠近陆地区域,陆地径流输入的分布呈现由近岸向外海逐减降低的特征,生物活动等自然因素的高值区主要集中在远离陆地的外海区域。
英文摘要:
      The principal component analysis/absolute principal component scores (PCA/APCS) receptor model and the ordinary kriging interpolation method were combined to identify and apportion the pollution sources of Cd in the sediments of the Yangtse River Estuary and its adjacent sea area. Three sources and their contribution rates, obtained using the receptor model, were as follows院industry drainage (18.8 %), land-based runoff input (66.0 %) and biological activities (13.6 %), respectively. Results show that every Cd source had its unique spatial pattern. Among them, the high-value areas of industrial pollution are mainly concentrated in the areas close to the land, the distribution of land runoff input decreases gradually from the nearshore to the open sea, while the high-value areas of natural factors such as biological activities are mainly concentrated in the open sea areas far away from the land.
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