Effects of site preparation for afforestation on methane fluxes at Harwood Forest, NE England
2010
Mojeremane, Witness | Rees, R. M. (Robert M) | Mencuccini, M. (Maurizio)
A field experiment was established at Harwood Forest to investigate the effects of three forest management practises (drainage, mounding and fertilisation) on methane (CH₄) emissions and environmental variables (soil temperature, soil moisture content, water table depth) from 2006 to 2008. The relationship between CH₄ emissions and environmental variables was also evaluated. The experiment was laid out in a factorial split-plot design on grassland in a peaty gley soil. Drainage increased daytime soil temperature at all depths. Mounding increased soil temperature at 1 and 5 cm depth. Soil moisture content was decreased by drainage and mounding. All practises affected soil CH₄ emissions with drainage reducing emissions by 57-76% and mounding and fertilisation increasing emissions by 34-59 and 20-59%, respectively. Water table depth was the major factor controlling CH₄ emissions.
显示更多 [+] 显示较少 [-]