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Lake sediments and inorganicN
Transformations in the Ncycle
12 other sections not shown
activity aerobic Alexander algae algal ammonia ammonium amounts anaerobic aquatic assimilation rates autotrophic biochemical biological bottles Bremner Brezonik cation chemical chemoautotrophic Chen compounds cycle decomposition decrease denitrification depth dissolved Domogalla Dugdale enzymes epilimnion eutrophic exchangeable NH^-N gaseous heterotrophic hypolimnion immobilization increased incubation indicate inorganic interface interstitial water Keeney KLuesener laboratory lake sediments lake water Lake Wingra levels McKee methane microbial microorganisms mineralization N-fixation N-serve natural waters nitrate nitrification nitrifying bacteria Nitrobacter nitrogen cycle Nitrogen fixation Nitrosomonas nitrous nitrous acid nutrient obtained occur OJ OJ OO OO OO organic matter ouo0 overlying water oxidation oxygen phytoplankton plants processes production protein reactions reduction release reported seasonal sediment samples sediment-water soil soluble organic studies substrate surface water temperature water and sediment water column water samples Wingra sediment Wingra water zooplankton