Temporal fluctuation in mean (± 1 SE) soil CO₂ and CH₄ fluxes.

Abstract

<p>a) Soil CO₂ fluxes by sample month over three years, and b) soil CH₄ fluxes by sample month over three years from five wetland sites (two <i>Phragmites australis</i>, two <i>Suaeda salsa</i>, one rice) located in the Liaohe Delta, China. Mean values reflect the responses of six replicate chambers per sampling event per site, each canvassing a 55x55 cm soil area. Fluxes were assumed to be zero from December-March when soils were frozen, as depicted by a straight line between open circles.</p