Summer fluxes of atmospheric greenhouse gases N2O, CH4 and CO2 from mangrove soil in South China

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • G. C. Chen
  • N. F Y Tam
  • Y. Ye

Detail(s)

Original languageEnglish
Pages (from-to)2761-2767
Journal / PublicationScience of the Total Environment
Volume408
Issue number13
Publication statusPublished - Jun 2010

Abstract

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 23.83μmolm-2h-1, 11.9 to 5168.6μmolm-2h-1 and 0.69 to 20.56mmolm-2h-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. © 2010 Elsevier B.V.

Research Area(s)

  • Carbon dioxide, Mangrove swamp, Methane, Nitrous oxide, Soil characteristics