Temporal responses of hydrochemical variables and dissolved Fe(II) to flooding at a lake riparian wetland under different vegetation revealing by high resolution DGT.

Journal of Environmental Management
Yuexia WuHongxiang Fan

Abstract

The interplay between hydrological and biogeochemical processes in riparian wetland was recognized to lead directly to the temporal variations of surface water quality. However, the effects of flooding and vegetation on the release and entrapment of heavy metals and nutrients in riparian wetland remain poorly understood. The study aimed at investigating the influences of flooding and vegetation on the hydrochemical and Fe-redox change in the soil porewater and shallow groundwater, in Poyang lake riparian wetland through hydrochemical monitoring and diffusive gradient technology (DGT). The hydrochemical profiles and results of PCA analysis on the temporal datasets both demonstrated that vegetation had significant influences on the hydrochemistry of rhizosphere depth zone (RDZ) and shallow groundwater depth zone (SGZ). The Ca, K, Na, Mg, Mn and DOC at RDZ of both plants showed significant increasing trends from pre-to post-flooding while were observed minor change at the SGZ. The extracted PC1-PC3 from PCA analysis suggested that mineral dissolution and fermentation were dominating processes that explained 64.1% of the hydrochemical variability under the wetting-drying cycle. The synchronous changes of Fe(II), SO42-, DOC and ORP ...Continue Reading

References

Dec 14, 2005·Environmental Microbiology·Karrie A WeberEric E Roden
Sep 19, 2006·Nature Reviews. Microbiology·Karrie A WeberJohn D Coates
Nov 15, 2013·Journal of Agricultural and Food Chemistry·Krisztina KovácsLourdes Hernández-Apaolaza
Oct 21, 2014·Nature Reviews. Microbiology·Emily D MeltonAndreas Kappler
Nov 26, 2014·Global Change Biology·Adrien C FinziRichard P Phillips
Jan 9, 2017·The Science of the Total Environment·Niloofar KarimianEdward D Burton
Mar 9, 2019·Environmental Pollution·Nguyen Thanh-NhoTran-Thi Nhu-Trang

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