DISTRIBUTION AND STRUCTURE CHARACTERISTICS OF DISSOLVED ORGANIC MATTER IN SPARTINA ALTERNIFLORA WETLAND SOILS

Authors

  • RuPing Wu Fujian Provincial Key Lab of Coastal Basin Environment, Fujian Polytechnic Normal University, Fuqing 350300, Fujian, China.
  • KaiQi Li Fujian Provincial Key Lab of Coastal Basin Environment, Fujian Polytechnic Normal University, Fuqing 350300, Fujian, China.
  • YuXin Zheng Fujian Provincial Key Lab of Coastal Basin Environment, Fujian Polytechnic Normal University, Fuqing 350300, Fujian, China.
  • ShengJie Wu (Corresponding Author) Fujian Provincial Key Lab of Coastal Basin Environment, Fujian Polytechnic Normal University, Fuqing 350300, Fujian, China.

Keywords:

Dissolved organic carbon, Wetland, Composition

Abstract

The invasion of Spartina alterniflora has damaged coastal ecosystems in China. Current research focuses primarily on the total organic carbon stock and distribution in Spartina alterniflora wetlands, lacking a systematic exploration of the composition and characteristics of dissolved organic matter (DOM) in the soil. Therefore, Spartina alterniflora wetlands along China's coast were set as our research area. We determined the content and composition of the DOM in soils using UV-Vis absorption spectroscopy and three-dimensional fluorescence spectroscopy. The results show significant spatial differentiation in DOC content in Spartina alterniflora wetland soils across the study area. A positive correlation exists between CDOM and DOC content, indicating a synergistic effect between the formation of colored dissolved components and the release of organic carbon. DOM in Spartina alterniflora wetland soils is mainly composed of humic substances and protein-like substances, exhibiting high biological activity and a significant terrestrial-dominated characteristic. These findings provide a new perspective for assessing the carbon cycle effects of Spartina alterniflora invasion and offer a scientific basis for the ecological restoration and carbon sequestration management of coastal wetlands.

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Published

2026-04-20

Issue

Vol. 4 No. 1 (2026)

Section

Research Article

DOI:

https://doi.org/10.61784/fer3047

How to Cite

RuPing Wu, KaiQi Li, YuXin Zheng, ShengJie Wu. Distribution And Structure Characteristics Of Dissolved Organic Matter In Spartina Alterniflora Wetland Soils. Frontiers in Environmental Research. 2026, 4(1): 42-52. DOI: https://doi.org/10.61784/fer3047.