The effect of soil oxygen availability on greenhouse gases emission in a double rice field Daily variation of the rhizosphere redox potential of six wetland plants Effect of ridging and fertilization on soil redox in cold waterlogged paddy fields Dynamics of ferrous iron, redox potential and pH of forested wetland soils Influence of Perturbation of Energy Metabolism in Escherichia coli K235 on Biosynthesis of Polysialic Acid