Mindmap

Soil

Lauren Power Englisch

Inhalt der Mindmap

Soil

Leaching
- Definition
  - Washing of minerals, humus and nutrients from A to B horizon
    - Hardpan
      - Minerals build up at the bottom of A horizon-cemented together.
Formation
- Relief
- Parent Material
- Climate
- Time
- Vegetation
- Living Organisms
Soil composition
- Mineral matter
- Water
- Humus
- Air
- Living organisms
Soil Texture
- Particles in the soil
  - Sand
  - Silt
  - Clay
Irish Soils
- Brown Earth
  - Most common in Ireland
  - Lowland
  - even amounts of -sand ,silt and clay
  - Deciduous Forest-lots of humus
- Podzol
  - Coniferous forests
  - upland
  - infertile and acidic
    - Poorly drained areas
- Gley
  - Grey in colour
  - Bedrock is impermeable
  - Sticky and waterlogged
  - Pastoral farming
- Peaty
  - Dark in Colour
  - cold upland areas
  - waterlogged
    - organic matter that has not broken down
      - fuel
    - Blanket and raised bogs
Human interaction
- Deforestation
  - Cutting away of trees
    - economic purposes
  - Implications
    - Soil erosion
    - Climate change
    - loss of fertility in soil
  - reforestation
- Farming
  - over-cropping
    - Nutrients are constantly removed from land
    - cash crop
  - overgrazing
    - soil erosion