大亚湾春季溶解无机碳的分布特征  

Distribution characteristics of dissolved inorganic carbon in the Daya Bay in spring

作　　者：黄道建[1] 綦世斌[1] 于锡军[1] 

机构地区：[1]环境保护部华南环境科学研究所,广东广州510655

出　　处：《生态科学》2012年第1期75-79,共5页Ecological Science

基　　金：环境保护部华南环境科学研究所中央级公益性科研院所基本科研业务专项-大亚湾溶解无机碳的分布特征及其受控因素研究;海岸工程生态环境影响评估方法与减缓对策研究;环保公益性行业科研专项-近岸海域环境与生态数字化实时管理系统(200909046)

摘　　要：于2010年5月对大亚湾溶解无机碳(DIC)进行采样调查,分析了大亚湾溶解无机碳空间分布特征,并讨论了大亚湾溶解无机碳与各环境要素(pH、水温、溶解氧和叶绿素a等)的相关性。大亚湾表层水域的DIC含量在24.26～26.13mg.L-1之间;底层水域的DIC含量在24.06～26.89mg.L-1之间。大亚湾表层水体中DIC含量的高值区集中在大辣甲-桑洲连线以北水域,然后呈现出向四周逐渐递减的分布趋势;底层水体中DIC含量高值区集中于西南部水域(大辣甲南部),总体呈现出由南部向北部逐渐递减的分布趋势。大亚湾DIC与水温和叶绿素a呈现负相关系,与pH、DO和盐度呈现正相关关系,但从相关的显著性来看,DIC与以上各环境因子的相关系数均不高。Dissolved inorganic carbon （DIC） in the waters of the Daya Bay was investigated to analyze its spatial distribution in May 2010, and to discuss the correlation between DIC and other environmental factors. The values of DIC ranged from 24.26 to 26.13mgL^-1 at surface waters, and at the bottom layer waters the values ranged from 24.06 to 26.89 mgL^-1. The high values of DIC at surface were found at the north area of DalajiaSangzhou line, and they were gradually decreased outside. At the bottom layer, the high values were in the south west region, namely, the south of Dalajia. The DIC was found to be negatively correlated with temperature and chlorophyll a, but positively correlated with pH, DO and salinity. Nevertheless, the correlation coefficients were not significant with the environmental factors.

关 键 词：大亚湾 溶解无机碳 分布特征 

分 类 号：P67[天文地球—海洋地质] Q14[天文地球—地质学]