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Characterization of CDOM absorption of reservoirs with its linkage of regions and ages across China
Y. X. Shang, K. S. Song, Z. D. Wen, L. L. Lyu, Y. Zhao, C. Fang and B. Zhang
2018
发表期刊Environmental Science and Pollution Research
卷号25期号:16页码:16009-16023
其他摘要The absorption of chromophoric dissolved organic matter (CDOM) is an important part of light absorptions in aquatic systems. The increasing eutrophication of reservoirs and regional characteristics would affect the CDOM properties sensitively which would be important for the application of remote sensing monitoring. The highest (4.07 +/- 2.31 m(-1)) and lowest (0.79 +/- 0.67 m(-1)) CDOM concentrations of reservoirs were observed in the northeastern lake region (NER) and Tibetan Plateau lake region (TPR), respectively. The differences between S(275-295)among the five lake regions were significant (p < 0.05) in which the steepest S275-295(0.0173 +/- 0.0026 nm(-1)) was observed in TPR and the shallowest (0.0326 +/- 0.0152 nm(-1)) in Yungui Plateau lake region (YGR). The strong relationships between a(CDOM)(355) and DOC appeared in the NER (R-2 = 0.43), eastern lake region (EAR) (R-2 = 0.69), Mengxin lake region (MXR) (R-2 = 0.61), and YGR (R-2 = 0.79) which would be a good proxy for DOC in regional reservoirs. Most of all, the correlation between reservoir's establishing time and CDOM absorption under oligotrophic states was relatively strong in the EAR and MXR regions. It indicated that the establishing time of reservoirs affected the CDOM absorption to some extent under the oligotrophic states without much human disturbance. Our results indicate CDOM absorption varies with regions, and the relationships between CDOM and DOC are variable for different regions. Therefore, DOC estimation in reservoirs through CDOM absorption needs to be considered according to lake regions and trophic states.
文献类型期刊论文
条目标识符http://ir.iga.ac.cn/handle/131322/9123
专题湿地生态系统管理学科组
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Y. X. Shang, K. S. Song, Z. D. Wen, L. L. Lyu, Y. Zhao, C. Fang and B. Zhang. Characterization of CDOM absorption of reservoirs with its linkage of regions and ages across China[J]. Environmental Science and Pollution Research,2018,25(16):16009-16023.
APA Y. X. Shang, K. S. Song, Z. D. Wen, L. L. Lyu, Y. Zhao, C. Fang and B. Zhang.(2018).Characterization of CDOM absorption of reservoirs with its linkage of regions and ages across China.Environmental Science and Pollution Research,25(16),16009-16023.
MLA Y. X. Shang, K. S. Song, Z. D. Wen, L. L. Lyu, Y. Zhao, C. Fang and B. Zhang."Characterization of CDOM absorption of reservoirs with its linkage of regions and ages across China".Environmental Science and Pollution Research 25.16(2018):16009-16023.
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