Characterizing variations in dissolved organic matter (DOM) properties in Nansi Lake: a typical macrophytes-derived lake in northern China.

Environmental Science and Pollution Research International
Haoyu RenYinghao Zhang

Abstract

Nansi Lake is the largest lake along the eastern route of China's South-to-North Water Diversion Project (SNWDP). It is divided into the upper lake and the lower lake by a dam. By using UV-Vis spectroscopy, synchronous fluorescence (SF) spectroscopy, excitation-emission matrix and parallel factor analysis (EEM-PARAFAC), spatial, and temporal differences in the properties of dissolved organic matter (DOM) were found in the 2 areas of Nansi Lake under different hydrological conditions. A total of 5 fluorescence components were obtained by EEM-PARAFAC, which included 3 humic-like components (C1-C3) and 2 protein-like components (C4 and C5). On the spatial scale, the fluorescence intensities (Fmax) of humic-like substances and the ratio of the fluorescence intensity of humic-like components to the total fluorescence intensity (%Fmax) and degree of humification (HIX) in the upper lake were higher than those in the lower lake. This indicated the strong contributions of terrestrial sources to the upper lake, while DOM properties in the lower lake were more endogenous than those in the upper lake. On the temporal scale, protein-like substances played a more important role in DOM properties in April (Fmax=0.72±0.03 in the upper lake and...Continue Reading

References

Dec 21, 2010·Environmental Management·Maria Th CheimonopoulouMaria Lazaridou
Apr 20, 2016·Journal of Environmental Sciences (China)·Huanguang DengShiyong Yu
Jan 28, 2017·Scientific Reports·Michiru NishitaYasuhiro Minami
Nov 22, 2017·The Science of the Total Environment·Min YuChunyan Wang
Jan 21, 2020·The Science of the Total Environment·Verónica GranadosAndrea Butturini
Nov 29, 2020·The Science of the Total Environment·Yunlin ZhangWeining Zhu

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Citations

Nov 27, 2021·Environmental Science and Pollution Research International·Changyong WuChunli Wan

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