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Spectral Characterization of Colored Dissolved Organic Matter for Productive Inland Waters and Its Source Analysis

SONG Kaishan,  LI Lin,  Lenore TEDESCO,  Nicolas CLERCIN,  LI Linhai,  SHI Kun

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文章导航 > Chinese Geographical Science  > 2015 >  25(3): 295-308
SONG Kaishan, LI Lin, Lenore TEDESCO, Nicolas CLERCIN, LI Linhai, SHI Kun. Spectral Characterization of Colored Dissolved Organic Matter for Productive Inland Waters and Its Source Analysis[J]. 中国地理科学, 2015, 25(3): 295-308. doi: 10.1007/s11769-014-0690-5
引用本文: SONG Kaishan, LI Lin, Lenore TEDESCO, Nicolas CLERCIN, LI Linhai, SHI Kun. Spectral Characterization of Colored Dissolved Organic Matter for Productive Inland Waters and Its Source Analysis[J]. 中国地理科学, 2015, 25(3): 295-308. doi: 10.1007/s11769-014-0690-5
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SONG Kaishan, LI Lin, Lenore TEDESCO, Nicolas CLERCIN, LI Linhai, SHI Kun. Spectral Characterization of Colored Dissolved Organic Matter for Productive Inland Waters and Its Source Analysis[J]. Chinese Geographical Science, 2015, 25(3): 295-308. doi: 10.1007/s11769-014-0690-5
Citation: SONG Kaishan, LI Lin, Lenore TEDESCO, Nicolas CLERCIN, LI Linhai, SHI Kun. Spectral Characterization of Colored Dissolved Organic Matter for Productive Inland Waters and Its Source Analysis[J]. Chinese Geographical Science, 2015, 25(3): 295-308. doi: 10.1007/s11769-014-0690-5
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Spectral Characterization of Colored Dissolved Organic Matter for Productive Inland Waters and Its Source Analysis

doi: 10.1007/s11769-014-0690-5
  • 1.

    Department of Earth Sciences, Indiana University-Purdue University, Indianapolis 46202, US;

  • 2.

    Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China;

  • 3.

    The Wetlands Institute, Stone Harbor, New Jersey 08247, US

基金项目: Under the auspices of National Aeronautics and Space Administration of US (NASA) (No. NNG06GA92G), National Natural Science Foundation of China (No. 41171293)
详细信息
    通讯作者:

    SONG Kaishan. E-mail:songks@iga.ac.cn

Spectral Characterization of Colored Dissolved Organic Matter for Productive Inland Waters and Its Source Analysis

  • 1.

    Department of Earth Sciences, Indiana University-Purdue University, Indianapolis 46202, US;

  • 2.

    Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China;

  • 3.

    The Wetlands Institute, Stone Harbor, New Jersey 08247, US

Funds: Under the auspices of National Aeronautics and Space Administration of US (NASA) (No. NNG06GA92G), National Natural Science Foundation of China (No. 41171293)
More Information
    Corresponding author: SONG Kaishan. E-mail:songks@iga.ac.cn

  • 摘要: This study examined the spatiotemporal dynamics of colored dissolved organic matter (CDOM) and spectral slope (S), and further to analyze its sources in three productive water supplies (Eagle Creek, Geist and Morse reservoirs) from Indiana, USA. The results showed that he absorption coefficient aCDOM(440) ranged from 0.37 m-1 to 3.93 m-1 with an average of 1.89±0.76 m-1 (±SD) for the aggregated dataset, and S varied from 0.0048 nm-1 to 0.0239 nm-1 with an average of 0.0108±0.0040 nm-1. A significant relationship between S and aCDOM(440) can be fitted with a power equation (S=0.013×aCDOM(440)-0.42, R2=0.612), excluding data from Geist Reservoir during high flow (12 April 2010) and the Morse Reservoir on 25 June 2010 due to a T-storm achieves even higher determination coefficient (R2=0.842). Correlation analysis indicated that aCDOM(440) has strong association with inorganic suspended matter (ISM) concentration (0.231 < R2< 0.786) for each of the field surveys, and this trend followed the aggregated datasets (R2=0.447, p< 0.001). In contrast, chlorophyll-a was only correlated with aCDOM(440) in summer and autumn (0.081 < R2< 0.763), indicating that CDOM is mainly from terrigenous sources in early spring and that phytoplankton contributed during the algal blooming season. The S value was used to characterize CDOM origin. The results indicate that the CDOM source is mainly controlled by hydrological variations, while phytoplankton originated organic matter also closely linked with CDOM dynamics in three productive reservoirs.
    Abstract: This study examined the spatiotemporal dynamics of colored dissolved organic matter (CDOM) and spectral slope (S), and further to analyze its sources in three productive water supplies (Eagle Creek, Geist and Morse reservoirs) from Indiana, USA. The results showed that he absorption coefficient aCDOM(440) ranged from 0.37 m-1 to 3.93 m-1 with an average of 1.89±0.76 m-1 (±SD) for the aggregated dataset, and S varied from 0.0048 nm-1 to 0.0239 nm-1 with an average of 0.0108±0.0040 nm-1. A significant relationship between S and aCDOM(440) can be fitted with a power equation (S=0.013×aCDOM(440)-0.42, R2=0.612), excluding data from Geist Reservoir during high flow (12 April 2010) and the Morse Reservoir on 25 June 2010 due to a T-storm achieves even higher determination coefficient (R2=0.842). Correlation analysis indicated that aCDOM(440) has strong association with inorganic suspended matter (ISM) concentration (0.231 < R2< 0.786) for each of the field surveys, and this trend followed the aggregated datasets (R2=0.447, p< 0.001). In contrast, chlorophyll-a was only correlated with aCDOM(440) in summer and autumn (0.081 < R2< 0.763), indicating that CDOM is mainly from terrigenous sources in early spring and that phytoplankton contributed during the algal blooming season. The S value was used to characterize CDOM origin. The results indicate that the CDOM source is mainly controlled by hydrological variations, while phytoplankton originated organic matter also closely linked with CDOM dynamics in three productive reservoirs.
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  • 收稿日期:  2013-02-27
  • 修回日期:  2013-05-28
  • 刊出日期:  2015-03-27

Spectral Characterization of Colored Dissolved Organic Matter for Productive Inland Waters and Its Source Analysis

doi: 10.1007/s11769-014-0690-5
  • 1. Department of Earth Sciences, Indiana University-Purdue University, Indianapolis 46202, US;
  • 2. Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China;
  • 3. The Wetlands Institute, Stone Harbor, New Jersey 08247, US
    • 基金项目:  Under the auspices of National Aeronautics and Space Administration of US (NASA) (No. NNG06GA92G), National Natural Science Foundation of China (No. 41171293)
    通讯作者: SONG Kaishan. E-mail:songks@iga.ac.cn
  • 收稿日期: 2013-02-27
  • 修回日期: 2013-05-28
  • 刊出日期: 2015-03-27

摘要: This study examined the spatiotemporal dynamics of colored dissolved organic matter (CDOM) and spectral slope (S), and further to analyze its sources in three productive water supplies (Eagle Creek, Geist and Morse reservoirs) from Indiana, USA. The results showed that he absorption coefficient aCDOM(440) ranged from 0.37 m-1 to 3.93 m-1 with an average of 1.89±0.76 m-1 (±SD) for the aggregated dataset, and S varied from 0.0048 nm-1 to 0.0239 nm-1 with an average of 0.0108±0.0040 nm-1. A significant relationship between S and aCDOM(440) can be fitted with a power equation (S=0.013×aCDOM(440)-0.42, R2=0.612), excluding data from Geist Reservoir during high flow (12 April 2010) and the Morse Reservoir on 25 June 2010 due to a T-storm achieves even higher determination coefficient (R2=0.842). Correlation analysis indicated that aCDOM(440) has strong association with inorganic suspended matter (ISM) concentration (0.231 < R2< 0.786) for each of the field surveys, and this trend followed the aggregated datasets (R2=0.447, p< 0.001). In contrast, chlorophyll-a was only correlated with aCDOM(440) in summer and autumn (0.081 < R2< 0.763), indicating that CDOM is mainly from terrigenous sources in early spring and that phytoplankton contributed during the algal blooming season. The S value was used to characterize CDOM origin. The results indicate that the CDOM source is mainly controlled by hydrological variations, while phytoplankton originated organic matter also closely linked with CDOM dynamics in three productive reservoirs.

English Abstract

SONG Kaishan, LI Lin, Lenore TEDESCO, Nicolas CLERCIN, LI Linhai, SHI Kun. Spectral Characterization of Colored Dissolved Organic Matter for Productive Inland Waters and Its Source Analysis[J]. 中国地理科学, 2015, 25(3): 295-308. doi: 10.1007/s11769-014-0690-5
引用本文: SONG Kaishan, LI Lin, Lenore TEDESCO, Nicolas CLERCIN, LI Linhai, SHI Kun. Spectral Characterization of Colored Dissolved Organic Matter for Productive Inland Waters and Its Source Analysis[J]. 中国地理科学, 2015, 25(3): 295-308. doi: 10.1007/s11769-014-0690-5
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SONG Kaishan, LI Lin, Lenore TEDESCO, Nicolas CLERCIN, LI Linhai, SHI Kun. Spectral Characterization of Colored Dissolved Organic Matter for Productive Inland Waters and Its Source Analysis[J]. Chinese Geographical Science, 2015, 25(3): 295-308. doi: 10.1007/s11769-014-0690-5
Citation: SONG Kaishan, LI Lin, Lenore TEDESCO, Nicolas CLERCIN, LI Linhai, SHI Kun. Spectral Characterization of Colored Dissolved Organic Matter for Productive Inland Waters and Its Source Analysis[J]. Chinese Geographical Science, 2015, 25(3): 295-308. doi: 10.1007/s11769-014-0690-5
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