鄱阳湖CDOM三维荧光光谱的平行因子分析

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (1606 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要利用三维荧光光谱（3DEEM）结合平行因子分析法（PARAFAC），对鄱阳湖水样的荧光光谱进行研究，探讨了有色溶解有机物（CDOM）荧光组分与氮磷营养盐之间的关系.结果表明，鄱阳湖水体CDOM由2类3个荧光组分组成，即类腐殖荧光组分C1（245/391nm）和C2（255，340/453nm），及类酪氨酸组分C3（275/304nm）.在CDOM组成中，微生物作用类腐殖质C1占40.8%，陆源类腐殖质C2占30.8%，类酪氨酸物质占28.4%.类腐殖质和类酪氨酸在两个极端水文条件下表现出截然不同规律，即类腐殖质在枯水期荧光强度和贡献都为最低，在丰水期贡献率最大，而类酪氨酸在丰水期，荧光强度和贡献为最低，在枯水期贡献率最大.CDOM各荧光组分强度分布因水文条件不同具有差异性.各荧光组分在同一水文条件下，荧光强度变化趋势相似.荧光光谱参数结果表明，鄱阳湖水中CDOM呈现外源和内源的特征，其中枯水期以外源输入为主.各荧光组分都与水体中总氮（TN）和溶解性总氮（DTN）呈现显著正相关，类酪氨酸组分与总磷（TP）呈现显著正相关.

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	刘丽贞
	黄琪
	吴永明
	吴代赦
	游海林

关键词 ：鄱阳湖, CDOM, 三维荧光光谱, 平行因子分析

Abstract：Based on the three-dimensional excitation-emission matrix spectrum (3DEEM) and the parallel factor analysis (PARAFAC) of Poyang Lake samples, a relationship between fluorescent components of chromophoric dissolved organic matter (CDOM) and nitrogen and phosphorus nutrients in the lake was established. Three fluorescence components were identified for CDOM including humic-like components C1 (245/391nm); C2 (255, 340/453nm), each of which accounted for 40.8% and 30.8% of total CDOM, and a tyrosine-like component C3 (275/304nm) with a contribution of 28.4% to total CDOM. The fluorescent intensities and proportion of humic-like components were the lowest in the dry season but the highest in the flooding season. On the contrary, the tyrosine-like component was the lowest contributor to total CDOM in the flooding season but the highest in the dry season. The fluorescent intensity of each component was subject to the changes in lacustral hydrological conditions. Similar fluorescent intensity of different components was observed under the same hydrological condition. The CDOM in Poyang Lake originated from both allochthonous and autochthonous sources, yet the allochthonous source dominated in the dry season. In addition, the fluorescent intensities of all components showed significantly positive correlations with total nitrogen (TN) and dissolved total nitrogen (DTN), and tyrosine-like component was significantly and positively correlated with total phosphorus (TP).

Key words： Poyang Lake CDOM three dimensional excitation-emission matrix spectroscopy parallel factor analysis

收稿日期: 2017-06-09

PACS:

X524

基金资助:国家自然科学基金资助项目（41561093，41661102，41661018）；江西省青年科学基金资助项目（20151BAB213033，20161BAB213076）；江西省科学院引进博士项目（2014-YYB-30）；鄱阳湖湿地与流域研究教育部重点实验室开放基金资助项目（PK2015007）

通讯作者: 黄琪,助理研究员,hbhuangqi@hotmail.com E-mail: hbhuangqi@hotmail.com

作者简介: 刘丽贞(1987-),女,江西万年人,助理研究员,博士,主要从事湖泊生态和水环境研究.发表论文20余篇.

引用本文:

刘丽贞, 黄琪, 吴永明, 吴代赦, 游海林. 鄱阳湖CDOM三维荧光光谱的平行因子分析[J]. 中国环境科学, 2018, 38(1): 293-302. LIU Li-zhen, HUANG Qi, WU Yong-ming, WU Dai-she, YOU Hai-lin. Fluorescent characteristics of CDOM in Poyang Lake analyzed by three-dimensional excitation-emission matrix spectroscopy and parallel factor analysis. CHINA ENVIRONMENTAL SCIENCECE, 2018, 38(1): 293-302.

链接本文:

http://manu36.magtech.com.cn/Jweb_zghjkx/CN/ 或 http://manu36.magtech.com.cn/Jweb_zghjkx/CN/Y2018/V38/I1/293

[1]	Liu X, Zhang Y, Shi K, et al. Absorption and fluorescence properties of chromophoric dissolved organic matter:implications for the monitoring of water quality in a large subtropical reservoir[J]. Environmental Science and Pollution Research, 2014,21(24):14078.
[2]	Wang X, Zhang F, Kung H T, et al. Evaluation and estimation of surface water quality in an arid region based on EEM-PARAFAC and 3D fluorescence spectral index:A case study of the Ebinur Lake Watershed, China[J]. Catena, 2017,155:62-74.
[3]	Zhang Y, Zhang E, Yin Y, et al. Characteristics and sources of chromophoric dissolved organic matter in lakes of the Yungui Plateau, China, differing in trophic state and altitude[J]. Limnology & Oceanography, 2010,55(6):2645-2659.
[4]	Zhou Y, Shi K, Zhang Y, et al. Fluorescence peak integration ratio IC:IT as a new potential indicator tracing the compositional changes in chromophoric dissolved organic matter[J]. Science of the Total Environment, 2016,574:1588-1598.
[5]	虞敏达,何小松,檀文炳,等.城市纳污河流有色溶解有机物时空演变特征[J]. 中国环境科学, 2016,36(1):133-142.
[6]	Zhou Y, Zhang Y, Shi K, et al. Dynamics of chromophoric dissolved organic matter influenced by hydrological conditions in a large, shallow, and eutrophic lake in China[J]. Environmental Science & Pollution Research, 2015,22(17):12992-13003.
[7]	王书航,王雯雯,姜霞,等.基于三维荧光光谱-平行因子分析技术的蠡湖CDOM分布特征[J]. 中国环境科学, 2016,36(2):517-524.
[8]	程庆霖,郑丙辉,王圣瑞,等.滇池水体有色溶解性有机质(CDOM)三维荧光光谱特征[J]. 光谱学与光谱分析, 2014,34(3):698-703.
[9]	周永强,张运林,牛城,等.基于EEMs及PARAFAC的洪湖,东湖与梁子湖CDOM组成特征分析[J]. 光谱学与光谱分析, 2013,33(12):3286-3292.
[10]	Zhou Y, Zhang Y, Jeppesen E, et al. Inflow rate-driven changes in the composition and dynamics of chromophoric dissolved organic matter in a large drinking water lake[J]. Water Research, 2016, 100:211-221.
[11]	Mcknight D M, Boyer E W, Westerhoff P K, et al. Spectrofluorometric characterization of dissolved organic matter for indication of precursor organic material and aromaticity[J]. Limnology & Oceanography, 2001,46(1):38-48.
[12]	Huguet A, Vacher L, Relexans S, et al. Properties of fluorescent dissolved organic matter in the Gironde Estuary[J]. Organic Geochemistry, 2009,40(6):706-719.
[13]	金相灿,屠清瑛.湖泊富营养化调查规范(第二版)[M]. 北京:中国环境科学出版社, 1990.
[14]	Zsolnay A, Baigar E, Jimenez M, et al. Differentiating with fluorescence spectroscopy the sources of dissolved organic matter in soils subjected to drying[J]. Chemosphere, 1999,38(1):45-50.
[15]	祝鹏,华祖林,李惠民.湖泊水体三维荧光光谱的PARAFAC法在污染源解析中的应用[J]. 光谱学与光谱分析, 2012,32(12):3290-3294.
[16]	胡春华,周文斌,王毛兰,等.鄱阳湖氮磷营养盐变化特征及潜在性富营养化评价[J]. 湖泊科学, 2010,22(05):723-728.
[17]	Redfield A C, The biological control of chemical factors in the environment[J]. Science Progress, 1960,11(11):150-170.
[18]	Coble P G. Characterization of marine and terrestrial DOM in seawater using excitation-emission matrix spectroscopy[J]. Marine Chemistry, 1996,51(4):325-346.
[19]	Xu H, Jiang H. UV-induced photochemical heterogeneity of dissolved and attached organic matter associated with cyanobacterial blooms in a eutrophic freshwater lake[J]. Water Research, 2013,47(17):6506-6515.
[20]	Yao X, Wang S, Ni Z, et al. The response of water quality variation in Poyang Lake (Jiangxi, People's Republic of China) to hydrological changes using historical data and DOM fluorescence[J]. Environmental Science and Pollution Research, 2015,22(4):3032-3042.
[21]	蔡文良,许晓毅,罗固源,等.长江重庆段溶解性有机物的荧光特性分析[J]. 环境化学, 2012,31(7):1003-1008.
[22]	祝鹏,华祖林,李惠民.PARAFAC法解析太湖水体DOM三维荧光光谱[J]. 光谱学与光谱分析, 2013,33(6):1619-1625.
[23]	Stedmon C A, Markager S. Resolving the variability in dissolved organic matter fluorescence in a temperate estuary and its catchment using PARAFAC analysis[J]. Limnology & Oceanography, 2005,50(2):686-697.
[24]	刘学利,姚昕,董杰,等.东平湖可溶性有机物的荧光特征及环境意义[J]. 生态与农村环境学报, 2016,32(6):933-939.
[25]	Liu L, Song C Y, Yan Z G, et al. Characterizing the release of different composition of dissolved organic matter in soil under acid rain leaching using three-dimensional excitation-emission matrix spectroscopy[J]. Chemosphere, 2009,77(1):15-21.
[26]	Hur J, Cho J. Prediction of BOD, COD, and Total Nitrogen Concentrations in a Typical Urban River Using a Fluorescence Excitation-Emission Matrix with PARAFAC and UV Absorption Indices[J]. Sensors (Basel, Switzerland), 2012,12(1):972-986.
[27]	金国花,谢冬明,邓红兵,等.鄱阳湖水文特征及湖泊纳污能力季节性变化分析[J]. 江西农业大学学报, 2011,33(2):0388-0393.
[28]	刘发根,李梅,郭玉银.鄱阳湖水质时空变化及受水位影响的定量分析[J]. 水文, 2014,34(4):37-43.
[29]	李艳红,葛刚,王茂林,等.垂向归纳模型下鄱阳湖丰、枯水期初级生产力特征及与环境因子相关性分析[J]. 湖泊科学, 2016,28(3):575-582.
[30]	Helms J R, Aron S, Ritchie J D, et al. Absorption spectral slopes and slope ratios as indicators of molecular weight, source, and photobleaching of chromophoric dissolved organic matter[J]. Limnology & Oceanography, 2008,54(3):955-969.