Fluorescence Characteristics of DOM in Overlying Water of Erhai Lake and Its Indication of Eutrophication
ZHAO Hai-chao2,3, LI Yan-ping3, WANG Sheng-rui1,3*, JIAO Li-xin3, ZHANG Li3
1. College of Water Sciences, Beijing Normal University, Beijing 100875, China
2. College of Agricultural Science, Hebei North University, Zhangjiakou 075131, China
3. National Engineering Laboratory for Lake Water Pollution Control and Ecological Restoration Technology,Research Center of Lake Eco-Environment, Chinese Research Academy of Environmental Sciences, Beijing 100012,China
Abstract:The composition characteristics of dissolved organic matter (DOM) have an important effect on water quality. The study on the composition characteristics of DOM in overlying water is the great significance to the indication of the lake eutrophication status. The temporal and spatial changes of DOM components in overlying water of Erhai Lake, and the relationship between DOM components and water quality factors were quantitatively analyzed by fluorescence spectroscopy regional volume integral analysis (FRI). The fluorescence characteristics of DOM components in the different source water bodies and different eutrophication levels of plateau lakes were compared and analyzed. The results showed that humic acid was the main type of DOM in overlying water of Erhai Lake, followed by fulvic acid. The contents of DOM and humic acid were higher in the middle of Erhai Lake. Tryptophan and tyrosine and other protein-like DOM were higher in the south, and a higher level of the fulvic acid DOM was in the north. During the Algal Bloom (in October), the protein DOM and the fulvic acid DOM were lower and the humic acid DOM significantly increased, and biological source DOM and biological activity of DOM decreased. The endogenous release of sediments in the Erhai Lake and its inflow rivers mainly affected the humic acid DOM in overlying water, and then the wet deposition mainly increased the protein-like DOM. During the poor nutrition stage, the fulvic acid DOM had greater impact on water quality,and in the eutrophic stage, the humic acid DOM had a great influence on water quality. Following the increase of the lake eutrophication, the proportion of the protein-like DOM and fulvic acid DOM decreased in overlying water, and then the proportion of microbial degradation products and the humic acid DOM showed an increasing trend. The proportion change of fluorescent components in DOM had an indication of the lake.
Key words:Dissolved organic matter (DOM); Erhai Lake; Fluorescence characteristics; The indication of eutrophication
赵海超,李艳平,王圣瑞,焦立新,张 莉. 洱海上覆水DOM荧光特征及对富营养化的指示意义[J]. 光谱学与光谱分析, 2019, 39(12): 3888-3896.
ZHAO Hai-chao, LI Yan-ping, WANG Sheng-rui, JIAO Li-xin, ZHANG Li. Fluorescence Characteristics of DOM in Overlying Water of Erhai Lake and Its Indication of Eutrophication. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2019, 39(12): 3888-3896.
[1] Chen H, Zheng B H. Environmental Science and Pollution Research, 2013, 20: 1762.
[2] Hirose K. Journal of Radioanalytical and Nuclear Chemistry —Articles, 1996, 204(1): 193.
[3] Kaiser K, Zech W. Soil Science, 1998, 163(9): 714.
[4] He X S, Xi B D, Wei Z M, et al. Journal of Hazardous Materials, 2011, 190: 293.
[5] Chen W, Westerhoff P, Leenheer J A, et al. Environmental Science & Technology, 2003, 37:5701.
[6] SONG Xiao-na, YU Tao, ZHANG Yuan, et al(宋晓娜, 于 涛, 张 远, 等). Acta Scientiae Circumstantiae(环境科学学报), 2010, 30(11): 2321.
[7] LI Yan-ping, WANG Sheng-rui, ZHAO Hai-chao, et al(李艳平, 王圣瑞, 赵海超, 等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2017, 37(4): 1189.
[8] He X S, Xi B D, Zhang Z Y, et al. Journal of Hazardous Materials, 2015, 283: 227.
[9] Wolfe A P, Kaushal S S, Fulton J R, et al. Environmental Science & Technology, 2002, 36: 3217.
[10] Huguet A, Vacher L, Relexans S, et al. Organic Geochemistry, 2009, 40: 706.
[11] ZHANG Zhen-ke, WU Rui-jin, ZHU Yu-xin, et al(张振克, 吴瑞金, 朱育新, 等). Acta Geographica Sinica(地理学报), 2000, 55(1): 66.
[12] SHEN Ji, YANG Li-yuan, YANG Xiang-dong, et al(沈 吉, 杨丽原, 羊向东, 等). Science in China Ser. D Earth Sciences(中国科学D辑 地球科学), 2004, 34(2): 130.
[13] ZHAO Hai-chao, WANG Sheng-rui, ZHAO Ming, et al(赵海超, 王圣瑞, 赵 明, 等). Environmental Science(环境科学), 2011, 32(7): 1952.
[14] State Environmental Protection Administration(国家环境保护总局). Determination Methods for Examination of Water and Wastewater(水和废水监测分析方法). Beijing: China Environmental Science Press(北京:中国环境科学出版社), 2002.
[15] WANG Yi-pin, ZHANG Wei-yan, XU Chun-yan, et al(汪益嫔, 张维砚, 徐春燕, 等). Environmental Science(环境科学), 2011, 32(5): 1249.
[16] Pullin M J, Cabaniss S E. Environmental Science & Technology, 1995, 29(6): 1460.
[17] LIU Qi, JIANG Yuan, DING Jiao, et al(刘 琦, 江 源, 丁 佼, 等). Journal of Natural Resources(自然资源学报), 2016, 31(7): 1231.
[18] Li Y P, Wang S R, Zhang L. Environmental Earth Sciences, 2015, 74: 3739.