• five primitives for all land operations
  • Primitives

    ElementPurposeSurface
    plotConstructionFlat, cleared
    pondWater retentionBasin
    roadVehicle accessContinuous grade
    terraceCultivationContoured slopes
    trailFoot trafficAny grade, stairs OK
  • Distinctions

    • plot vs terrace — both can be cut into slopes. Plot is for building, terrace is for growing.
    • road vs trail — road allows vehicles (no stairs). Trail allows stairs.
  • Principles

    • Every clearing operation has a target type
    • Drainage is integrated into all elements
    • Protected forest is outside this grammar (separate management)
    • Infrastructure (biogas, tanks) lives under buildings on plots
  • Coverage

    • This set is complete and minimal. Every intervention on the land falls into one of these five types.