Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Variation of H2S and COS emission fluxes from Calamagrostis angustifolia Wetlands in Sanjiang Plain, Northeast China
AbstractUsing the static chamber and Chromatograph method, H2S and COS emission fluxes from the mash meadow Calamagrostis angustifolia and typical meadow C. angustifolia in Sanjiang Plain Northeast China were measured during growth season (5–9 month), the results showed that the seasonal and diurnal variations of H2S and COS emission fluxes were obvious, the mean emission fluxes of H2S and COS from the mash meadow C. angustifolia were 0.34 and −0.29μgSm−2h−1, respectively, and from typical meadow C. angustifolia were 0.14 and −0.20μgSm−2h−1, respectively, the mean emission fluxes of H2S and COS from the mash meadow C. angustifolia were both higher than their from typical meadow C. angustifolia. The C. angustifolia wetlands both can emit H2S to the atmosphere and absorb COS from the atmosphere in the growth season. The H2S and COS emission fluxes were affected by the C. angustifolia growth, and the H2S emission peak and COS absorbed peak were observed during the bloom growth time. There were negative correlations of H2S and COS emission fluxes in C. angustifolia Wetlands.
Variation of H2S and COS emission fluxes from Calamagrostis angustifolia Wetlands in Sanjiang Plain, Northeast China
AbstractUsing the static chamber and Chromatograph method, H2S and COS emission fluxes from the mash meadow Calamagrostis angustifolia and typical meadow C. angustifolia in Sanjiang Plain Northeast China were measured during growth season (5–9 month), the results showed that the seasonal and diurnal variations of H2S and COS emission fluxes were obvious, the mean emission fluxes of H2S and COS from the mash meadow C. angustifolia were 0.34 and −0.29μgSm−2h−1, respectively, and from typical meadow C. angustifolia were 0.14 and −0.20μgSm−2h−1, respectively, the mean emission fluxes of H2S and COS from the mash meadow C. angustifolia were both higher than their from typical meadow C. angustifolia. The C. angustifolia wetlands both can emit H2S to the atmosphere and absorb COS from the atmosphere in the growth season. The H2S and COS emission fluxes were affected by the C. angustifolia growth, and the H2S emission peak and COS absorbed peak were observed during the bloom growth time. There were negative correlations of H2S and COS emission fluxes in C. angustifolia Wetlands.
Variation of H2S and COS emission fluxes from Calamagrostis angustifolia Wetlands in Sanjiang Plain, Northeast China
Li, Xinhua (Autor:in) / Liu, Jingshuang (Autor:in) / Yang, Jisong (Autor:in)
Atmospheric Environment ; 40 ; 6303-6312
18.05.2006
10 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Land Use and Landscape Pattern Changes in the Sanjiang Plain, Northeast China
| DOAJ | 2018