BIOL333 Lecture Notes - Lecture 11: Photosynthesis, Freshwater Marsh, Central Cross-Island Highway
18 Nov 2018
School
Department
Course
Professor
Document Summary
Interpretation of concentration profiles: rewetting: depletion of sulfate (green line) = production of methane (purple, chemical mass balance in wetlands. Inputs and outputs affect changing storage: open vs closed ecosystem, hydrological perspective, sink, storage up. If not, losses to the atmosphere: source, storage down. The nitrogen cycle: all metabolic processes required nitrogen, key n forms in the n cycle, going from organic n to no3. = oxidation: n pools in wetlands, largely stored in soil and sediments, key processes in n cycle, mineralization, assimilation. In soils with high or low cation exchange capacity: low, cations are less fixed, ammonium ions don"t have to compete as much, when do expect soils to have greater exchangeable nh4. In drained (oxic) or flooded (anoxic): anoxic conditions. Iron and manganese: less ammonium will be adsorbed and available to. Exchange onto the organic matter: oxic, greater exchangeable nh4.
