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引用本文:范成新,杨龙元,张路.太湖底泥及其间隙水中氮磷垂直分布及相互关系分析.湖泊科学,2000,12(4):359-366. DOI:10.18307/2000.0410
FAN Chengxin,YANG Longyuan,ZHANG Lu.The Vertical Distributions of Nitrogen and Phosphorus in the Sediment and Interstitial Water in Taihu Lake and Their Interrelations. J. Lake Sci.2000,12(4):359-366. DOI:10.18307/2000.0410
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太湖底泥及其间隙水中氮磷垂直分布及相互关系分析
范成新,杨龙元,张路
作者单位
范成新 中国科学院南京地理与湖泊研究所, 南京210008 
杨龙元 中国科学院南京地理与湖泊研究所, 南京210008 
张路 中国科学院南京地理与湖泊研究所, 南京210008 
摘要:
对太湖主要湖区柱状样底泥的总氮、总磷含量及其间隙水铵态氮 (NH4+ N)、磷酸根磷 (PO43--P)和二价铁 (Fe(Ⅱ))含量进行了分析,并对底泥和间隙水中相应物质含量进行了比较.结果表明:太湖近表层 10cm内底泥TN、TP赋存含量较之下层高 12%-2 0%左右,间隙水中PO43--P和NH4+ N含量随深度增加而大致呈上升趋势,表层未见高浓度层存在.各湖区底泥间隙水中PO43--P和NH4+ N浓度与底泥中TP含量未发现有明显的相关关系.但间隙水中Fe(Ⅱ)含量与NH4+ N含量呈显著的正相关 (R=0.92 34).
关键词:  间隙水      垂直分布  太湖
DOI:10.18307/2000.0410
分类号:
基金项目:中国科学院资源环境"九五"重点项目(KZ952-J1-220)和江苏省自然科学重点基金项目(BK99204-2)资助.
The Vertical Distributions of Nitrogen and Phosphorus in the Sediment and Interstitial Water in Taihu Lake and Their Interrelations
FAN Chengxin,YANG Longyuan,ZHANG Lu
Abstract:
The contents of nit rogen and phosphorus and ferrous in the column sediments and their interst itial water were analy zed and compared in the main regions of Taihu Lake in 1998.The results show that the upper layer(0-10cm) contained higher contents in TN and TP and than the lower.And NH4-N and PO4-P in the interstitial water are a bit higher in the seriously-polluted waters than those in the gent ly-polluted waters.However, those of the lower layers are slightly higher in the gently-polluted waters than those in the seriously-polluted.It was indicated that there was no distinct corresponding relationships between NH4-N/PO4-P contents in the interstitial water and TN/TP contents in the sediments.The ferrous concentration in the interstitial water is distinctly in positive correlation with NH4-N content (R=0.9234).
Key words:  Interstitial water  nitrogen  phosphorus  vertical distribution  Taihu Lake
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