Environmental and biological controls on methyl halide emissions from southern California coastal salt marshes.

Discusses the biogeochemical lines of evidence pointing to vegetation as the primary source of methyl bromide and methyl chloride emissions from salt marshes. Soil inundation; Relation of methyl chloride and methyl bromide fluxes with overall plant biomass; Diurnal variabilities of fluxes that correspond with variations in air, temperature, sunlight and carbon dioxide emissions.