Spectroscopy and Spectral Analysis, Volume. 41, Issue 10, 3286(2021)
Characterizing Chromophoric Dissolved Organic Matter (CDOM) in Lake Chaohu in Different Hydrologic Seasons
Figures & Tables(9)
Fig. 1. Location of sampling sites in Lake Chaohu in January, April, and July 2018
Fig. 2. Mothly average rainfall in the Chaohu Lake Basin from (1961—2018)
Fig. 3. Spatial distribution of dead, flat water and water-rich
Fig. 4. The three fluorescent components obtained using parallel factor analysis and the split-half validation results were also shown
Fig. 5. Spatial distribution of the four fluorescent components in the dry, the wet-to-dry transition, and the wet seasons
Fig. 6. Correlation between DOC, TN, TP and shortwave humus components C1, tryptophan component scoline C2, tyrosine component C3, and longwave humus components C4
Fig. 7. Spatial distribution of Chl-
Table 1. Comparison of mean and
t -test results of the CDOM optical indices of Lake Chaohu during the dry and the wet seasonsView tableView in ArticleTable 1. Comparison of mean and
t -test results of the CDOM optical indices of Lake Chaohu during the dry and the wet seasons时期 DOC/
(mg·L-1)S275~295/
μm-1a350/
m-1荧光强度/R.U. C1 C2 C3 C4 枯水期 3.89±0.19 19.24±0.98 3.50±0.64 0.84±0.07 0.71±0.16 0.26±0.05 0.15±0.02 丰水期 3.90±0.40 21.48±1.56 3.31±0.90 0.76±0.17 0.48±0.07 0.25±0.03 0.17±0.05 p值 >0.05 <0.001 >0.05 >0.05 <0.001 >0.05 <0.05
Table 2. Pearson correlation coefficient between microbial humic-like C1, tryptophan-like C2, tyrosine-like C3, and terrestrial humic-like C4 and water quality parameters
View tableView in ArticleTable 2. Pearson correlation coefficient between microbial humic-like C1, tryptophan-like C2, tyrosine-like C3, and terrestrial humic-like C4 and water quality parameters
TN TP Chl-a DOC C1 0.57** 0.51** 0.42** 0.78** C2 0.16 -0.10 -0.15 0.35* C3 0.26 0.01 -0.06 0.01 C4 0.69** 0.70** 0.57** 0.57**
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Yu-yang LI, Yan-ni GUO, Jun-yu ZHU, Lei ZHOU, Yong-qiang ZHOU, Chun-hua HU. Characterizing Chromophoric Dissolved Organic Matter (CDOM) in Lake Chaohu in Different Hydrologic Seasons[J]. Spectroscopy and Spectral Analysis, 2021, 41(10): 3286
Paper Information
Category: Research Articles
Received: Sep. 22, 2020
Accepted: --
Published Online: Oct. 29, 2021
The Author Email: LI Yu-yang (liyuyangqaq@126.com)
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