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Relationship changes between CDOM and DOC in the Songhua River affected by highly polluted tributary, Northeast China
Y. Zhao, K. S. Song, L. L. Lv, Z. D. Wen, J. Du and Y. X. Shang
2018
发表期刊Environmental Science and Pollution Research
卷号25期号:25页码:25371-25382
其他摘要In this study, the dissolved organic carbon (DOC) concentrations, chromophoric dissolved organic matter (CDOM) absorption coefficient a(254), and excitation-emission matrix fluorescence (EEM) were examined in the Songhua River (SHR) and its highly polluted tributary of Northeast China. Fluorescence regional integration (FRI) was used to identify five fluorescent regions: one tyrosine-like (R1), one tryptophan-like (R2), one fulvic-like (R3), one microbial by-product-like (R4), and one humic-like (R5) regions. The five EEM-FRI regions for all water samples have site-specific properties. Principle component analysis (PCA) was conducted to assess variations in the five FRI regions and the humification index (HIX) for all water samples. For the water samples from the mainstream of SHR, CDOM absorption coefficient a(254) was correlated with either DOC or FRI fluorescent regions (R3 and R5), respectively. FRI R3 region was also correlated with R5 region for the water samples in the mainstream of SHR. However, the determination coefficients (R2) and slopes of these relationships among CDOM absorption, fluorescent regions, and DOC all decreased when the SHR waters were influenced by the highly polluted tributary of Yinma River (YMR) and Yitong River (YTR), which has a negative effect on the estimation of DOC flux transported by the SHR to oceans.
文献类型期刊论文
条目标识符http://ir.iga.ac.cn/handle/131322/9235
专题湿地生态系统管理学科组
推荐引用方式
GB/T 7714
Y. Zhao, K. S. Song, L. L. Lv, Z. D. Wen, J. Du and Y. X. Shang. Relationship changes between CDOM and DOC in the Songhua River affected by highly polluted tributary, Northeast China[J]. Environmental Science and Pollution Research,2018,25(25):25371-25382.
APA Y. Zhao, K. S. Song, L. L. Lv, Z. D. Wen, J. Du and Y. X. Shang.(2018).Relationship changes between CDOM and DOC in the Songhua River affected by highly polluted tributary, Northeast China.Environmental Science and Pollution Research,25(25),25371-25382.
MLA Y. Zhao, K. S. Song, L. L. Lv, Z. D. Wen, J. Du and Y. X. Shang."Relationship changes between CDOM and DOC in the Songhua River affected by highly polluted tributary, Northeast China".Environmental Science and Pollution Research 25.25(2018):25371-25382.
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