Environmental Biology

  1. Biogeochemical Cycles
    1. Carbon Cycle
      1. Carbon Reservoirs
        1. Atmospheric Carbon
          1. Oceanic Carbon
            1. Terrestrial Carbon
              1. Geological Carbon
              2. Carbon Fluxes
                1. Photosynthesis
                  1. Respiration
                    1. Decomposition
                      1. Ocean-Atmosphere Exchange
                      2. Human Impacts
                        1. Fossil Fuel Combustion
                          1. Deforestation
                            1. Land Use Changes
                              1. Industrial Processes
                            2. Nitrogen Cycle
                              1. Nitrogen Forms
                                1. Atmospheric Nitrogen
                                  1. Organic Nitrogen
                                    1. Inorganic Nitrogen
                                    2. Nitrogen Transformations
                                      1. Nitrogen Fixation
                                        1. Nitrification
                                          1. Denitrification
                                            1. Mineralization
                                            2. Human Alterations
                                              1. Fertilizer Production
                                                1. Agricultural Applications
                                                  1. Fossil Fuel Combustion
                                                2. Phosphorus Cycle
                                                  1. Phosphorus Sources
                                                    1. Rock Weathering
                                                      1. Marine Sediments
                                                        1. Biological Uptake
                                                        2. Phosphorus Limitations
                                                          1. Terrestrial Systems
                                                            1. Aquatic Systems
                                                            2. Human Impacts
                                                              1. Mining Activities
                                                                1. Agricultural Runoff
                                                                  1. Detergent Use
                                                                2. Water Cycle
                                                                  1. Water Reservoirs
                                                                    1. Oceans
                                                                      1. Ice Caps and Glaciers
                                                                        1. Groundwater
                                                                          1. Surface Water
                                                                            1. Atmospheric Water
                                                                            2. Water Fluxes
                                                                              1. Evaporation
                                                                                1. Transpiration
                                                                                  1. Precipitation
                                                                                    1. Runoff
                                                                                      1. Infiltration
                                                                                      2. Human Modifications
                                                                                        1. Dam Construction
                                                                                          1. Irrigation
                                                                                            1. Urbanization
                                                                                              1. Climate Change Effects
                                                                                            2. Sulfur Cycle
                                                                                              1. Sulfur Reservoirs
                                                                                                1. Sulfur Transformations
                                                                                                  1. Acid Rain Formation
                                                                                                  2. Oxygen Cycle
                                                                                                    1. Oxygen Production
                                                                                                      1. Oxygen Consumption
                                                                                                        1. Atmospheric Oxygen Levels

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                                                                                                      2. Foundations of Ecology

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                                                                                                      4. Population Ecology