Soils in seasonally flooded forests as methane sources: A case study of West Siberian South taiga

Abstract

In this study, we measured the methane and carbon dioxide fluxes by static chamber method from the soil of periodically flooded forests under different water table levels (WTL) in West Siberian south taiga (Tomsk oblast, Russia) in summer seasons of 2016 and 2017 years. The study shows that seasonally flooded forests may become a methane source when the WTL increases up to 15-45 cm below the surface. The fluxes of methane from soil were from-0.08±0.07 to 9.3±0.8 mg•m-2•h-1, from 0.05±0. 04 to 0.14±0.13 mg•m-2•h-1, from-0.03±0.02 to 5.4±0.2 mg•m-2•h-1 depending on variou s WTL in different seasonally flooded forests in 2017.