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240814s2024 xx |||||o 00| ||eng c |
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|a 10.2166/wst.2024.267
|2 doi
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|a eng
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|a Zhang, Jin
|e verfasserin
|4 aut
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|a Spatial differences of dissolved organic matter composition and humification in an artificial lake
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|c 2024
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|a Text
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|2 rdacontent
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 14.08.2024
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|a Date Revised 14.08.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2024 The Authors This is an Open Access article distributed under the terms of the Creative Commons Attribution Licence (CC BY 4.0), which permits copying, adaptation and redistribution, provided the original work is properly cited (http://creativecommons.org/licenses/by/4.0/).
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|a The depth-dependent dynamics of dissolved organic matter (DOM) structure and humification in an artificial lake limits the understanding of lake eutrophication and carbon cycling. Using fluorescence regional integration (FRI) and parallel factor analysis (PARAFAC) models to analyze the 3D fluorescence spectroscopy dataset, we revealed the depth-dependent structure and vertical distribution of DOM in the estuarine and center regions of Lake Hongfeng. The percentage fluorescence response (Pi,n) showed humic acid is an important part of DOM in Lake Hongfeng. Fluorescence results show that the fulvic-like and protein-like materials in HF1-DOM located at the estuarine position showed greater variation in the middle stage, probably due to human influence and sediment suspension. Fluorescence index (PI+II+IV,n/PIII+V,n and FIC4/FIC3) can be used to indicate the degree of humification of DOM in artificial lakes. Results of each index show that the estuary is more affected by human activities, and the humification degree is significantly lower than that of the center of the lake. The evaluation index system of the humification degree of artificial lake established in this study can effectively predict the eutrophication state of the typical area of artificial lake and deeply understand the possible important influence of human activities on the carbon cycle of lake
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|a Journal Article
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|a artificial lake
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|a dissolved organic matter
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|a fluorescence indices
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|a humification degree
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|a parallel factor analysis
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|a Humic Substances
|2 NLM
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|a Organic Chemicals
|2 NLM
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| 700 |
1 |
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|a Tan, Jiajia
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Yingjie
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Water science and technology : a journal of the International Association on Water Pollution Research
|d 1986
|g 90(2024), 3 vom: 14. Aug., Seite 995-1008
|w (DE-627)NLM098149431
|x 0273-1223
|7 nnns
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| 773 |
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|g volume:90
|g year:2024
|g number:3
|g day:14
|g month:08
|g pages:995-1008
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|u http://dx.doi.org/10.2166/wst.2024.267
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