洱海不同来源溶解性有机氮特征
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- 论文作者：张莉 ; 王圣瑞 ; 李文章
- 年：2016
- 作者机构：中国环境科学研究院环境基准与风险评估国家重点实验室;中国环境科学研究院国家环境保护湖泊污染控制重点实验室湖泊生态环境创新基地;
- 论文关键词：上覆水 ; 间隙水 ; DON ; 荧光光谱
- 会议召开时间：2016-10-14
- 会议录名称：2016中国环境科学学会学术年会论文集（第一卷）
- 英文会议录名称：Proceedings of 2016 Annual Meeting of Chinese Society for Environmental Sciences
- 语种：中文
- 分类号：X524
- 学会代码：HJKP
- 会议名称：中国环境科学学会2016年学术年会
- 会议地点：中国海南海口
- 主办单位：中国环境科学学会
- 学会名称：中国环境科学学会
- 页数：7
- 文件大小：659k
- 原文格式：O
- 会议级别：全国
摘要
选取洱海不同来源(洱海上覆水、间隙水、入湖河流和大气湿沉降)水样,研究其溶解性有机氮(DON)含量及分布特征,利用三维荧光光谱与紫外可见吸收光谱技术研究其结构组分特征,并探讨了其结构特征与其与湖泊水质间的关系。结果表明:(1)DON浓度在0.052~1.710mg/L之间,呈间隙水>入湖河流>大气湿沉降>上覆水趋势;(2)不同来源DON受微生物和外源输入共同作用,入湖河流DON芳香性、分子量以及腐殖化程度最高,其次为间隙水和上覆水,不利于生物的利用;而湿沉降DON类蛋白组分最高,生物有效性高。(3)相关分析和聚类分析表明,DON浓度与芳香化程度和分子量大小呈现显著正相关,入湖河流DON为影响上覆水DON结构组分特征的主要来源,间隙水为潜在影响源,湿沉降为藻华诱导源。
引文
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[15]胡春明,张远,于涛,等.太湖典型湖区水体溶解有机质的光谱学特征[J].光谱学与光谱分析,2011,11:3022-3025.
[16]罗专溪,魏群山,王振红,等.淡水水体溶解有机氮对有毒藻种的生物有效性[J].生态环境学报,2010,01:45-50.
[17]虞敏达,张慧,何小松,等.河北洨河溶解性有机物光谱学特性[J].环境科学,2015,09:3194-3202.
[18]赵海超,王圣瑞,焦立新,等.2010年洱海全湖氮负荷时空分布特征[J].环境科学研究,2013,26(4):389-395.
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[20]朱荣,王欢,余得昭,等.2013年洱海水华期间微囊藻毒素和浮游植物动态变化[J].湖泊科学,2015(3):378-384.
[2]Bronk,D.A.,See,J.H.,Bradley,P.,et al.DON as a source of bioavailable nitrogen for phytoplankton[J].Biogeosciences.2007,4,283-296.
[3]Chen W.,Westerhoff P.,Leenheer J.A.,Booksh K.Fluorescence excitation-emission matrix regional integration to quantify spectra for dissolved organic matter,Environ.Sci.Technol.37(24)(2003)5701-5710.
[4]Fu J,Ji M,Wang Z,et al.A new submerged membrane photocatalysis reactor(SMPR)for fulvic acid removal using a nano-structured photocatalyst[J].Journal of hazardous materials,2006,131(1):238-242.
[5]Huguet,L.Vacher,S.Relexans,S.Saubusse,J.-M.Froidefond,E.Parlanti,Properties of fluorescent dissolved organic matter in the Gironde Estuary[J].Org.Geochem.40(2009)706-719.
[6]Johnson,L.T.,Tank,J.L.,Hall,R.0.,Mulholland Jr.,P.J.,Hamilton,S.K.,Balett,H.M.,et al.,Quantifying the production of dissolved organic nitrogen in headwater streams using 15N tracer additions[J].Limnol.Oceanogr.2013,58,1271-1285.
[7]Li Y,Wang S,Zhang L,et al.Composition and spectroscopic characteristics of dissolved organic matter extracted from the sediment of Erhai Lake in China[J].Journal of Soils and Sediments,2014,14(9):1599-1611.
[8]McKenna,J.,2003.An enhanced cluster analysis program with bootstrapsignificance testing for ecological community analysis.EnvironmentalModelling and Software 18:205-220.
[9]McKnight,D.M.E.W.Boyer,P.K.Westerhoff,et al.Andersen,Spectrofluorometric characterization of dissolved organic matter for indicationof precursor organic material and aromaticity[J].Limnol.Oceanogr.46(2001)38-48.
[10]Mladenov N,Williams M W,Schmidt S K,et al.Atmospheric deposition as a source of carbon and nutrients to an alpine catchment of the Colorado Rocky Mountains[J].Biogeosciences,2012,9(8):3337-3355.
[11]Salve P R,Lohkare H,Gobre T,et al.Characterization of chromophoric dissolved organic matter(CDOM)in rainwater using fluorescence spectrophotometry[J].Bulletin of environmental contamination and toxicology,2012,88(2):215-218.
[12]Wang L.Y.,.Wu F.C.Zhang R.Y..,et al.Characterization of dissolved organic matter fractions from Lake Hongfeng,Southwestern China Plateau[J].Journal of Environmental Sciences,2009,21(5),581-588.
[13]Zhang L,Wang S,Imai A.Spatial and temporal variations in sediment enzyme activities and their relationship with the trophic status of Erhai Lake[J].Ecological Engineering,2015,75:365-369.
[14]郭旭晶,席北斗,谢森,等.乌梁素海沉积物孔隙水中溶解有机质的荧光及紫外光谱研究[J].环境工程学报,2012,02:440-444.陈小峰,揣小明,刘涛,等.江苏省西部湖泊溶解性有机物光谱学特征和来源解析[J].湖泊科学,2012,02:259-266.
[15]胡春明,张远,于涛,等.太湖典型湖区水体溶解有机质的光谱学特征[J].光谱学与光谱分析,2011,11:3022-3025.
[16]罗专溪,魏群山,王振红,等.淡水水体溶解有机氮对有毒藻种的生物有效性[J].生态环境学报,2010,01:45-50.
[17]虞敏达,张慧,何小松,等.河北洨河溶解性有机物光谱学特性[J].环境科学,2015,09:3194-3202.
[18]赵海超,王圣瑞,焦立新,等.2010年洱海全湖氮负荷时空分布特征[J].环境科学研究,2013,26(4):389-395.
[19]赵海超,千圣瑞,赵明,等.洱海水体溶解氧及其与环境因子的关系[J].环境科学,2011,07:1952-1959.
[20]朱荣,王欢,余得昭,等.2013年洱海水华期间微囊藻毒素和浮游植物动态变化[J].湖泊科学,2015(3):378-384.
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