湿地沉积物-水界面营养盐交换的定量估算

古小治; 张雷; 柏祥; 申秋实; 王兆德; 范成新

湿地沉积物-水界面营养盐交换的定量估算

古小治^1,2,
张雷^1,2,
柏祥³,
申秋实^1,2,
王兆德^1,2,
范成新^1,

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, 江苏, 南京, 210008;
2.
中国科学院研究生院, 北京, 100039;
3.
南京农业大学资源与环境科学学院, 江苏, 南京, 210095

基金项目: “十一五”国家科技支撑计划资助项目(2006BAC10B03);国家水体污染控制与治理科技重大专项(2008ZX07103-003);江苏省社会发展计划资助项目(BE2009603)

详细信息

作者简介:
古小治(1979- ),男,河南义马人,博士研究生,主要研究湖泊污染与湿地修复.E-mail:guxiaozhi@163.com

通讯作者:
范成新,cxfan@ niglas.as.cn

中图分类号: X144;O657.31

Nutrient exchange across sediment-water interface in wetlands

1.
State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China;
2.
Graduate University of Chinese Academy of Sciences, Beijing 100039, China;
3.
College of Resource and Environment, Agricultural University of Nanjing, Nanjing 210095, China

Funds: The study is financially supported by the National Key Technologies R&D Program of China during the 11th Five-year Plan Period(No.2006BAC10B03).

摘要: 为有效控制湖泊内源营养盐的释放,探讨了不同物理改良措施(覆沙、底质疏松)对沉积物-水界面营养盐的释放通量控制效果。利用原位孔隙水采样技术(Peeper)来获得沉积物孔隙水剖面,对改良后湿地沉积物孔隙水营养盐的垂向分布及其扩散通量进行了研究。结果发现,改良后沉积含水率、孔隙率分别提高了91%和54%。水土界面附近,随剖面深度增加,孔隙水中PO₄^3-、NH₄⁺、NO₃^-及NO₂^-浓度分布符合指数关系,PO₄^3-、NH₄⁺在8 cm左右达到最大值。种植芦苇后沉积物孔隙水中PO₄^3-、NH₄⁺均有不同程度的下降,改良措施能有效降低表层弱结合态磷在总磷中比例但增加铁磷的比例,种植芦苇可强化这一效应。运用Fick第一定律对剖面孔隙水营养盐的扩散通量进行估算,发现沉积物经疏松后,NH₄⁺、PO₄^3-的扩散通量由57.47~72.19μg/(m²·d)和2.55~3.21μg/(m²·d)变为-95.54~-130.94μg/(m²·d)和1.50~2.05μg/(m²·d),可考虑疏松沉积物-水界面附近沉积物来作为控制湖泊内源污染的有效手段之一。
- 湿地沉积物 /
- 覆沙 /
- 底泥疏松 /
- 原位孔隙水 /
- 扩散通量
Abstract: In order to reducing benthic nutrients release,we investigate the effectiveness of three physical amelioration measures (fine sand covered,sediment loosened,and reed planting)on the diffusive flux from sediment-overlying water.An in-situ sampling technique (Peeper)was employed to obtain the vertical distribution of nutrient elements and diffusive fluxes on the Nansi Lake in China.The results show that in the case of all three amelioration measures,the sediment water content and porosity have increased by 91% and 54% compared to the Control Treatment,respectively.The nutrient profiles NH₄⁺ and PO₄^3- in pore water on the sediment-water interface exhibit a nearly exponential increase with depth with a concentration maximum being at the 8 cm depth.The contents of NH₄⁺, PO₄^3- and NO₃^- decrease significantly in pore water after reed planting.With all three amelioration measures,the proportion of NH₄Cl-extractable PO₄^3- to the total content of PO₄^3- in sediments is found to be decreased in upmost sediments,whereas those of bicarbonate dithionite (BD)BD-extractable PO₄^3- are increased as the result of amelioration measures.Such result is enhanced by reed planting.The diffusive flux across the sediment-water interface could be calculated using the Fick's First Law of diffusion.It is found that the diffusive fluxes of NH₄⁺and PO₄^3- have been reduced from 57.47～72.19 μg/(m²·d)and 2.55～3.21μg/(m²·d)to -95.54～-130.94 μg/(m²·d)and 1.50～2.05 μg/(m²·d)after sediment loosened.The measure of surface sediment loosening can decrease the diffusive fluxes of NH₄⁺,PO₄^3- from surface sediments.The measure is thus recommended as one of the effective controls towards the internal nutrient load reduction in lakes.
- wetland sediments /
- fine sand covered /
- sediment loosened /
- in-situ pore water /
- diffusive fluxes

[1]	卢小燕,徐福留,詹巍,等.湖泊富营养化模型的研究现状与发展趋势[J].水科学进展,2003,14(6):792-798.(LU Xiao-yan,XU Fu-liu,ZHAN Wei,et al.Current situation and development trends in lake eutrophication model[J].Advances in Water Science,2003,14(6):792-798.(in Chinese))
[2]	FAN Cheng-xin,ZHANG Lu,WANG Jian-jun,et al.Processes and mechanism of effects of sludge dredging on internal source release in lakes[J].Chinese Science Bulletin,2004,49(17):1853-1859
[3]	孙华军."疏浚、吹填"之于湖滨带生态工程:人工湿地建设的可行性[J].水运工程,2002,336(1):12-15.(SUN Hua-jun.Carrying out lakefront ecological works through"Dredging and reclamation":Feasibility of Artificial Hmnid Site Construction[J].Port & Waterway Engineering,2002,336(1):12-15.(in Chinese))
[4]	包先明,陈开宁,范成新.化学物添加控制湖泊内源磷负荷的有效性研究[J].生态环境,2007,16(1):8-11.(BAO Xian-ming,CHEN Kai-ning,FAN Cheng-xin.Effectiveness of controlling internal phosphorus loading by using chemical substance[J].Ecology and Environment,2007,16(1):8-11.(in Chinese))
[5]	PETER R T,GRAEME E B,SIMON C A.Pore water sampling with sediment Peepers[J].Trends in Analytical Chemistry,1995,14(6):250-256.
[6]	MURRAY L G,MUDGE S M,NEWTON A,et al.The effect of benthic sediments on dissolved nutrient concentrations and fluxes[J].Biogeochemistry,2006,81:159-178.
[7]	EMIL R,EUGENE B W.Aluminum dose required to inactivate phosphate in lake sediments[J].Water Research,1998,32:2969-2976.
[8]	RUBAN V,Ló PEZ-S(A)NEHEZ J F,PARDO P,et al.Development of a harmonised phosphorus extraction procedure and certification of a sediment reference materials[J].Journal of Environment Monitor,2001,3(1):121-125.
[9]	ULLMAN W J,SANDSTRON M W.Dissolved nutdent flux from the nearshore sediments of Bowling Green Bay,Central Great Barrier Reef Lagoon(Australia)[J].Esturine,Coastal and Shelf Science,1987,24(3):289-303.
[10]	宋金明.中国近海沉积物:海水界面化学[M].北京:海洋出版社,1997:6-8.(SONG Jin-ming.Chemistry of sediment:Sea water interface of China Seas[M].Beijing:China Ocean Press,1997:6-8.(in Chinese))
[11]	RASHEED M.Nutrient fluxes from sediments of the northern Gulf of Aqaba under various anthropogenic activities[J].Lebanese Science Journal,2004,5:3-16.
[12]	BASHEED M,BADRAN M I,HUETTEL M.Influence of sediment permeability and mineral composition on organic matter degradarien in three sediments from the Gulf of Aqaba,Red Sea[J].Estur Coast Shelf Sci,2003,57:369-384.
[13]	AZZONI R,GIORDANI G,BARTOLIIRON M.Sulphur and phosphorus cycling in the rhizosphere sediments of a eutrophic Ruppia cirrhosa meadow(Valle Smarlacca,Italy)[J].Journal of Sea Research,2001,45:15-26.
[14]	RODEN E E,EDMONDS J W.Phosphate mobilization in iron rich anaerobic sediments:Microbial Fe(Ⅲ)oxide reduction versus iron-sulfide formation[J].Arch Hydrobiol,1997,139:347-378.
[15]	SCHEFFER M,VAN B M,BREUKELAAR A,et al.Vegetated area with clear water in turbid shallow lakes[J].Aqua Bot,1994,49:193-196.
[16]	RASHEED M,AL-ROUSAN S,MANASRAH R.Nutrient fluxes from deep sediment support nutrient budget in the oligotrophic waters of the Gulf of Aqaba[J].Journal of Oceanography,2006,62:83-89
[17]	CERMELJ B,BERTUZZI A,FAGANELI J.Modeling of pore water nutrient distribution and fluxes in shallow coastal waters(Gulf of Trieste,Northern Adriatic)[J].Water Air and Soil Pollution,1997,99:435-444.

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湿地沉积物-水界面营养盐交换的定量估算

作者简介:
古小治(1979- ),男,河南义马人,博士研究生,主要研究湖泊污染与湿地修复.E-mail:guxiaozhi@163.com

通讯作者:
范成新,cxfan@ niglas.as.cn

Nutrient exchange across sediment-water interface in wetlands

计量

湿地沉积物-水界面营养盐交换的定量估算

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, 江苏, 南京, 210008;

2. 中国科学院研究生院, 北京, 100039;

3. 南京农业大学资源与环境科学学院, 江苏, 南京, 210095

作者简介:
古小治(1979- ),男,河南义马人,博士研究生,主要研究湖泊污染与湿地修复.E-mail:guxiaozhi@163.com

通讯作者: 范成新,cxfan@ niglas.as.cn

English Abstract

Nutrient exchange across sediment-water interface in wetlands

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目录

留言板

湿地沉积物-水界面营养盐交换的定量估算

作者简介: 古小治(1979- ),男,河南义马人,博士研究生,主要研究湖泊污染与湿地修复.E-mail:guxiaozhi@163.com

通讯作者: 范成新,cxfan@ niglas.as.cn

Nutrient exchange across sediment-water interface in wetlands

计量

出版历程

湿地沉积物-水界面营养盐交换的定量估算

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, 江苏, 南京, 210008; 2. 中国科学院研究生院, 北京, 100039; 3. 南京农业大学资源与环境科学学院, 江苏, 南京, 210095

作者简介: 古小治(1979- ),男,河南义马人,博士研究生,主要研究湖泊污染与湿地修复.E-mail:guxiaozhi@163.com

通讯作者: 范成新,cxfan@ niglas.as.cn

English Abstract

Nutrient exchange across sediment-water interface in wetlands

全文HTML

目录

作者简介:
古小治(1979- ),男,河南义马人,博士研究生,主要研究湖泊污染与湿地修复.E-mail:guxiaozhi@163.com

通讯作者:
范成新,cxfan@ niglas.as.cn

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, 江苏, 南京, 210008;

2. 中国科学院研究生院, 北京, 100039;

3. 南京农业大学资源与环境科学学院, 江苏, 南京, 210095

作者简介:
古小治(1979- ),男,河南义马人,博士研究生,主要研究湖泊污染与湿地修复.E-mail:guxiaozhi@163.com