Spatial and temporal distributions of nitrogen, phosphorus and heavy metals in the intertidal sediment of the Chang jiang River Estuary in China

被引：19

作者：

Quan Weimin ^{[1
]}

Shi Liyan ^{[1
]}

Han Jindi ^{[1
]}

Ping Xianyin ^{[1
]}

Shen Anglv ^{[1
]}

Chen Yaqu ^{[1
]}

机构：

[1] Chinese Acad Fishery Sci, E China Sea Fishery Res Inst, Minist Agr, Key & Open Lab Marine & Estuarine Fishery, Shanghai 200090, Peoples R China

来源：

ACTA OCEANOLOGICA SINICA | 2010年 / 29卷 / 01期

基金：

中国国家自然科学基金;

关键词：

heavy metals; nutrients; intertidal; Changjiang River Estuary; contamination; SALT-MARSH SEDIMENTS; YANGTZE ESTUARY; COASTAL WETLAND; MEDWAY ESTUARY; HONG-KONG; TIDAL SEDIMENTS; ACCUMULATION; UK; CONTAMINATION; VARIABILITY;

D O I：

10.1007/s13131-010-0013-3

中图分类号：

P7 [海洋学];

学科分类号：

0707 ;

摘要：

Spatial and temporal distributions of nutrients (N and P) and heavy metals (Cu, Zn, Pb and Cd) in the intertidal sediments at Dongtan wetland of the Changjiang River (Yangtze River) Estuary were examined by laying one transect running seaward to landward during January, April, June, August and October of 2005. Total nitrogen (TN) and heavy metal concentrations in the intertidal sediment showed an increasing trend from open bare flat to the high marsh, with the maximum concentrations in the high marsh and the minimum values in open bare flat. In contrast, sediment total phosphorus (TP) concentrations changed little among sampling sites. One-way ANOVA found that there were significantly temporal variations of nutrients and heavy metals concentrations in the intertidal sediment (P < 0.05). The concentrations of heavy metals generally showed an increasing trend from January to October. As compared with other large estuaries, heavy metal contamination in the intertidal sediment of the Changjiang River Estuary was relatively low.

引用

页码：108 / 115

页数：8

共 27 条

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