Effects of Drying-Rewetting Frequency on Vertical and Lateral Loss of Soil Organic Carbon in a Tidal Salt Marsh
作者： Juanyong Li , Wendi Qu , Guangxuan Han , Feng Lu , Yingfeng Zhou
DOI: 10.1007/S13157-020-01286-5
关键词:
摘要: Tidal salt marshes, as “blue carbon” ecosystems, play a critical role in mitigation of global climate change since their large soil organic carbon (SOC) pool. Drying-rewetting cycles induced by periodic tides have profound influence on cycling tidal marshes. However, the magnitude and mechaanism effects drying-rewetting frequency SOC loss marshes is still uncertain. Here, we conducted mesocosm experiment to identify how changes alter vertical (CO2 CH4) lateral (dissolved carbon) losses soils marsh Yellow River Delta (YRD). We found that increasing moisture inhibited CO2 emission but stimulated CH4 marsh. Soil dissolved (DOC) was produced drying phase rewetting lead DOC. salinity were factors controlling DOC had significant emissions. Changes action cycle can affect pathway
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