Soil and Water Conservation Engineering

  1. Agricultural Drainage Systems
    1. Drainage Fundamentals
      1. Need for Drainage
        1. Waterlogging Problems
          1. Salt Accumulation
            1. Crop Response to Drainage
              1. Environmental Benefits
                1. Economic Justification
                2. Drainage Problems
                  1. Surface Waterlogging
                    1. Causes and Effects
                      1. Identification Methods
                        1. Subsurface Waterlogging
                          1. High Water Table
                            1. Perched Water Tables
                              1. Saline Seepage
                              2. Surface Drainage
                                1. Land Grading
                                  1. Grading Principles
                                    1. Equipment and Methods
                                      1. Grade Requirements
                                        1. Surface Smoothing
                                          1. Open Ditch Systems
                                            1. Field Ditches
                                              1. Collection Ditches
                                                1. Main Drains
                                                  1. Design Procedures
                                                    1. Hydraulic Design
                                                      1. Cross-Section Design
                                                        1. Grade Selection
                                                          1. Erosion Protection
                                                          2. Subsurface Drainage
                                                            1. Pipe Drainage Systems
                                                              1. Drain Pipe Materials
                                                                1. Corrugated Plastic Pipe
                                                                  1. Clay Tile
                                                                    1. Concrete Pipe
                                                                      1. Pipe Installation
                                                                        1. Trenching Methods
                                                                          1. Bedding Requirements
                                                                            1. Backfilling Procedures
                                                                              1. Mole Drainage
                                                                                1. Soil Suitability
                                                                                  1. Construction Methods
                                                                                    1. Effectiveness and Longevity
                                                                                    2. Drainage Design
                                                                                      1. Design Criteria
                                                                                        1. Drainage Coefficient
                                                                                          1. Design Discharge
                                                                                            1. Drain Spacing
                                                                                              1. Drain Depth
                                                                                                1. Drainage Equations
                                                                                                  1. Hooghoudt Equation
                                                                                                    1. Ernst Equation
                                                                                                      1. Steady-State Solutions
                                                                                                        1. Unsteady-State Solutions
                                                                                                        2. Drainage System Layout
                                                                                                          1. Pattern Selection
                                                                                                            1. Parallel Systems
                                                                                                              1. Herringbone Systems
                                                                                                                1. Random Systems
                                                                                                                  1. Outlet Requirements
                                                                                                                    1. Pump Stations
                                                                                                                      1. Gravity Outlets
                                                                                                                      2. Drainage Water Management
                                                                                                                        1. Controlled Drainage
                                                                                                                          1. Subirrigation
                                                                                                                            1. Water Table Management
                                                                                                                              1. Environmental Considerations
                                                                                                                                1. Water Quality Issues
                                                                                                                                  1. Disposal Methods