Journal
MARINE POLLUTION BULLETIN
Volume 149, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2019.110568
Keywords
Tidal constructed mangrove wetland; Global warming potential (GWP); In-situ continuous monitoring of greenhouse gases (GHGs); Diurnal and seasonal variation; Carbon sequestration and stock
Funding
- Ministry of Science and Technology (MOST) of ROC (Taiwan) [MOST105-2221-E-110-007-MY2]
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This study used a self-developed a NDIR monitoring system to continuously monitor GHG emissions from a tidal constructed mangrove wetland at three typical habitats (mudflat, mangrove, and water surface) in four seasons. The NDIR monitoring system is able to explore the diurnal and seasonal variation of GHG emissions from the tidal constructed mangrove wetland and to estimate more precisely for the GHG emission based carbon budget of the wetland. The continuous monitoring technique is feasible and valuable for assessing the temporal variation of GHG uptake/emission to/from the wetland. Daytime CO2 emissions were always lower than those at night-time due to photosynthesis process, while an opposite trend was observed for CH4 and N2O emissions. Seasonal variation of GHGs showed that the highest GHG emissions was observed in summer, and followed by fall, spring, and winter. For three typical habitats, mangrove emitted more amounts of GHGs than mudflat and water surface.
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