SOIL

SOIL

1. RELIEF

   • STEEP
     • good drainage
       • leaching
   • FLAT
     • poor drainage
       • water logging
         • possible gelling

2. CLIMATE

   • PRECIPITATION
     • LOW
       • capillary uplift
         • more minerals at the top
     • HIGH
       • leaching
         • iron pan forms
         • less fertile
   • TEMPERATURE
     • HIGH
       • rapid decomposition
       • organisms
         • mixing
           • merged horizons
     • LOW
       • few organisms
         • little mixing
           • thin soil
             • slow decomposition

3. ORGANISMS

   • NOT PRESENT
   • PRESENT
     • decompose
     • aerate
     • mix
     • tunnel

4. PARENT MATERIAL

   • PERMEABLE
   • IMPERMEABLE

5. VEGETATION