Characterizing Chromophoric Dissolved Organic Matter (CDOM) in Lake Chaohu in Different Hydrologic Seasons
文献类型：期刊论文
| 作者 | Li Yu-yang; Guo Yan-ni; Zhu Jun-yu; Zhou Lei; Zhou Yong-qian; Hu Chun-hua |
| 刊名 | SPECTROSCOPY AND SPECTRAL ANALYSIS
 |
| 出版日期 | 2021 |
| 卷号 | 41期号:10页码:3286-3293 |
| 英文摘要 | In this paper, water samples were taken from Lake Chaohu in January (dry) , April (wet-to-dry transition) , and July (wet) to explore the spectral composition and distribution characteristics of chromophoric dissolved organic matter (CDOM) under different hydrologic conditions. Our results showed that there was no significant difference between the mean of dissolved organic carbon (DOC) in the wet season (3. 90 +/- 0. 40) mg . L-1 and in the dry season (3. 89 +/- 0. 19) mg . L-1. The mean spectral slope of CDOM, i. e. S-275 similar to 295 in the wet season (21. 48 +/- 1. 56) mu m(-1) was significantly higher than that in the dry season (19. 24 +/- 0. 98) mu m(-1) (t-test, p<0. 001). Using CDOM fluorescence and parallel factor analysis, four fluorescence components were obtained including a microbial humic-like C1, a tryptophan-like C2, a tyrosine-like C3, and a terrestrial humic-like C4. C1 and C4 increased with increasing TP, TN, Chl-a, and DOC (p<0. 01), and we further found a positive relationship between DOC and tryptophan-like C2 (p<0. 05). There were seasonal differences in the optical component and sources of CDOM in Chaohu. In the wet season, terrestrial humic-rich CDOM contributed primarily while in the wet-to-dry transition season, autochthonous CDOM derived from algal degradation contributed to the lake's CDOM pool. In order to protect the water quality of the lake effectively, certain control measures should be carried out in the watersheds of the Shiwuli River and the Nanfei River. |
| 源URL | [http://159.226.73.51/handle/332005/20382]  |
| 专题 | 中国科学院南京地理与湖泊研究所 |
| 推荐引用方式 GB/T 7714 | Li Yu-yang,Guo Yan-ni,Zhu Jun-yu,et al. Characterizing Chromophoric Dissolved Organic Matter (CDOM) in Lake Chaohu in Different Hydrologic Seasons[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2021,41(10):3286-3293. |
| APA | Li Yu-yang,Guo Yan-ni,Zhu Jun-yu,Zhou Lei,Zhou Yong-qian,&Hu Chun-hua.(2021).Characterizing Chromophoric Dissolved Organic Matter (CDOM) in Lake Chaohu in Different Hydrologic Seasons.SPECTROSCOPY AND SPECTRAL ANALYSIS,41(10),3286-3293. |
| MLA | Li Yu-yang,et al."Characterizing Chromophoric Dissolved Organic Matter (CDOM) in Lake Chaohu in Different Hydrologic Seasons".SPECTROSCOPY AND SPECTRAL ANALYSIS 41.10(2021):3286-3293. |
入库方式： OAI收割
来源：南京地理与湖泊研究所
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