太湖不同湖区沉积物磷形态变化分析

被引:44
作者
袁和忠 [1 ,2 ]
沈吉 [1 ]
刘恩峰 [1 ]
机构
[1] 中国科学院南京地理与湖泊研究所,湖泊与环境国家重点实验室
[2] 中国科学院研究生院
基金
中国科学院知识创新工程重大项目;
关键词
沉积物; SMT法; 磷形态; 太湖;
D O I
暂无
中图分类号
X524 [湖泊、水库];
学科分类号
0815 ;
摘要
采用SMT法于2009年11月对太湖北部湖区梅梁湾(T1)、竺山湾(T2)、太湖西部(T3)、太湖南部(T4)、太湖东部(T5)及湖心区(T6)沉积物30cm深度上不同磷形态进行分析,结果表明,太湖不同营养水平湖区不同磷形态含量变化明显,北部竺山湾及太湖西部富营养化明显,NaOH-P含量明显高于其他湖区,占TP比例总体为T2>T1>T3>T4、T5、T6.反映太湖北部及西部受人为污染源输入影响严重.HCl-P则表现为太湖北部及西北部含量总体低于太湖南部\东部,占TP比例总体为T4>T5>T6>T1、T3>T2.OP随深度至约15cm迅速降低,和太湖较强的矿化作用有关系.同NaOH-P一样,TP表现出太湖北部及西北部含量高于其他湖区的总体趋势,反映了太湖北部和西北部湖区特别是竺山湾富营养化高于其他湖区.
引用
收藏
页码:1522 / 1528
页数:7
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