Soil Science

  1. Soil Formation (Pedogenesis)
    1. Soil-Forming Factors (CLORPT)
      1. Parent Material
        1. Types of Parent Material
          1. Residual Materials
            1. Transported Materials
              1. Colluvial Materials
                1. Alluvial Materials
                  1. Marine Materials
                    1. Lacustrine Materials
                      1. Glacial Materials
                        1. Eolian Materials
                        2. Organic Deposits
                          1. Peat
                            1. Muck
                          2. Influence on Soil Properties
                          3. Climate
                            1. Precipitation Patterns
                              1. Temperature Regimes
                                1. Effects on Weathering Rates
                                  1. Influence on Vegetation
                                  2. Biota (Organisms)
                                    1. Role of Vegetation
                                      1. Litter Input
                                        1. Root Activity
                                        2. Microorganisms
                                          1. Decomposition
                                            1. Nutrient Cycling
                                            2. Soil Animals
                                              1. Mixing and Bioturbation
                                              2. Human Influence
                                                1. Land Use Changes
                                                  1. Agricultural Practices
                                                2. Relief (Topography)
                                                  1. Slope Gradient
                                                    1. Slope Aspect
                                                      1. Elevation Effects
                                                        1. Landscape Position
                                                          1. Summit
                                                            1. Shoulder
                                                              1. Backslope
                                                                1. Footslope
                                                                  1. Toeslope
                                                                2. Time
                                                                  1. Soil Development Stages
                                                                    1. Rates of Soil Formation
                                                                  2. Basic Soil-Forming Processes
                                                                    1. Additions
                                                                      1. Organic Matter Input
                                                                        1. Deposition of Materials
                                                                        2. Losses
                                                                          1. Leaching of Nutrients
                                                                            1. Erosion
                                                                            2. Translocations
                                                                              1. Movement of Clay
                                                                                1. Movement of Organic Matter
                                                                                  1. Movement of Iron and Aluminum
                                                                                  2. Transformations
                                                                                    1. Weathering of Minerals
                                                                                      1. Decomposition of Organic Matter
                                                                                        1. Formation of Secondary Minerals

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                                                                                    1. Introduction to Soil Science

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                                                                                    3. The Soil Profile and Horizons