Environmental Science and Pollution Research

, Volume 23, Issue 6, pp 5203–5213 | Cite as

Influence of soil conditions on dissolved organic matter leached from forest and wetland soils: a controlled growth chamber study

  • Eun-Ah Kim
  • Hang Vo-Minh Nguyen
  • Hae Sung Oh
  • Jin Hur
  • Jung Hyun ChoiEmail author
Research Article


This study investigated the effects of various soil conditions, including drying-rewetting, nitrogen deposition, and temperature rise, on the quantities and the composition of dissolved organic matter leached from forest and wetland soils. A set of forest and wetland soils with and without the nitrogen deposition were incubated in the growth chambers under three different temperatures. The moisture contents were kept constant, except for two-week drying intervals. Comparisons between the original and the treated samples revealed that drying-rewetting was a crucial environmental factor driving changes in the amount of dissolved organic carbon (DOC). The DOC was also notably increased by the nitrogen deposition to the dry forest soil and was affected by the temperature of the dry wetland soil. A parallel factor (PARAFAC) analysis identified three sub-fractions of the fluorescent dissolved organic matter (FDOM) from the fluorescence excitation–emission matrices (EEMs), and their compositions depended on drying-rewetting. The data as a whole, including the DOC and PARAFAC components and other optical indices, were possibly explained by the two main variables, which were closely related with the PARAFAC components and DOC based on principal component analysis (PCA). Our results suggested that the DOC and PARAFAC component information could provide a comprehensive interpretation of the changes in the soil-leached DOM in response to the different environmental conditions.


Dissolved organic matter (DOM) Drying-rewetting, PARAFAC Fluorescence excitation–emission matrix (EEM) Humification Principle component analysis (PCA) 



This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Ministry of Education, Science and Technology (MEST) (Grant Nos. 2013R1A1A1058884 and 2009-0083527).

Compliance with ethical standards

• The manuscript has not been submitted to more than one journal for simultaneous consideration.

• The manuscript has not been published previously (partly or in full).

• A single study is not split up into several parts to increase the quantity of submissions and submitted to other journals.

• No data have been fabricated or manipulated (including images) to support its conclusions.

• There is no plagiarism.

Conflict of interest

The authors declare that they have no competing interests.

Supplementary material

11356_2015_5740_MOESM1_ESM.doc (92 kb)
ESM 1 (DOC 92 kb)


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Copyright information

© Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  • Eun-Ah Kim
    • 1
    • 3
  • Hang Vo-Minh Nguyen
    • 1
  • Hae Sung Oh
    • 1
  • Jin Hur
    • 2
  • Jung Hyun Choi
    • 1
    Email author
  1. 1.Department of Environmental Science and EngineeringEwha Womans UniversitySeodaemun-guSouth Korea
  2. 2.Department of Environment and EnergySejong UniversityGwangjin-guSouth Korea
  3. 3.Center for Chemical Safety and SecurityYuseongSouth Korea

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