Journal
SCIENCE OF THE TOTAL ENVIRONMENT
Volume 408, Issue 13, Pages 2761-2767Publisher
ELSEVIER
DOI: 10.1016/j.scitotenv.2010.03.007
Keywords
Mangrove swamp; Nitrous oxide; Methane; Carbon dioxide; Soil characteristics
Categories
Funding
- Research Grants Council of the Hong Kong SAR [CityU160907]
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The atmospheric fluxes of N2O, CH4 and CO2 from the soil in four mangrove swamps in Shenzhen and Hong Kong. South China were investigated in the summer of 2008 The fluxes ranged from 0.14 to 23.83 mu mol m(-2) h(-1), 11 9 to 5168.6 fund m(-2) h(-1) and 0 69 to 20 56 mmol m(-2) h(-1) for N2O, CH4 and CO2, respectively Futian mangrove swamp in Shenzhen had the highest greenhouse gas fluxes, followed by Mai Po mangrove in Hong Kong. Sha Kong Tsuen and Yung Shue O mangroves in Hong Kong had similar, low fluxes. The differences in both N2O and CH4 fluxes among different tidal positions, the landward, seaward and bare mudflat, in each swamp were insignificant. The N2O and CO2 fluxes were positively correlated with the soil organic carbon, total nitrogen, total phosphate, total iron and NH4+-N contents, as well as the soil porosity. However, only soil NH4+-N concentration had significant effects on CH4 fluxes (C) 2010 Elsevier B V. All rights reserved
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