1、the regulation of methane oxidation in soil rocco.l mancinell 2 effects of soil cover and land-use on the relation flux-concentration of trace gases jacinthe p a lal r 3 fluxes of co2 ch4 and n2o from a temperate forest soil: the effects of leaves and humus layers dong y scharfee d 4 nitrous oxide and methane fluxes in six different land use systems in the paravian amazon c a palm jc alegre