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Composition and source characteristics of dissolved organic matter (DOM) in the surface sediments of Erhai Lake were studied by using fluorescence spectroscopy and UV–Vis absorbance. Moreover, the influence factors and the indication significance for eutrophication are also discussed. The results are as follows: (1) The DOC content of Erhai Lake sediments ranges from 0.17 to 0.77 g kg−1, which is...
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