1. horizons
1.1. O
1.1.1. detritus
1.1.2. Oh horizon
1.1.3. organic
1.2. A
1.2.1. real surface soil is
1.2.2. "biomantine"
1.2.2.1. most soil organisms reside
1.3. eve
1.3.1. sometimes
1.3.2. silt and sand
1.4. B
1.4.1. subsurface
1.4.2. farthest plant roots will go for soil
1.5. C
1.5.1. bedrook degrading into soil
1.5.2. large rocks and gravel
1.6. R
1.6.1. just rock
1.7. Soil orders
1.7.1. gelisoil
1.7.1.1. permafrost
1.7.1.2. little horizon development
1.7.2. ultisoil
1.7.2.1. subtropical and humid
1.7.2.2. iron makes them red
1.7.3. entisoil
1.7.3.1. no development of the soil horizons
1.7.3.2. very young
1.7.3.3. most common
1.7.4. inceptisoil
1.7.4.1. slightly more horizon development
1.7.5. spodosoil
1.7.5.1. low fertility
1.7.5.2. acidic due to pine needless
1.7.5.3. conifererous and boreal forest
1.7.6. alfisoil
1.7.6.1. rich in Fe and Al
1.7.6.2. broadleaf and deciduous forest
1.7.7. oxisoil
1.7.7.1. low soil fertility
1.7.7.2. rainforest soil
1.7.7.3. very developed horizons
1.7.8. ardisoil
1.7.8.1. desert soil
1.7.8.2. no sand desert
1.7.9. mollisoil
1.7.9.1. best for agriculture
1.7.9.2. grassland soils
1.7.10. vertisoil
1.7.10.1. high clay
1.7.10.2. dry out
1.7.11. andisoil
1.7.11.1. rich nutrients
1.7.11.2. volcanic soil
1.7.12. histosoil
1.7.12.1. wetland soil
1.7.12.2. highly acidic
1.7.12.3. usually contain peat and other organic matter
2. what actually is?
2.1. weathering
2.1.1. can be
2.1.1.1. physical
2.1.1.2. chemical
2.1.2. breaking of rocks into smaller rocks
2.2. erosion
2.2.1. smaller rocks are carried away from the bigge parent rock
2.2.1.1. by
2.2.1.1.1. wind
2.2.1.1.2. water
2.2.2. can be consider
2.2.2.1. clay
2.2.2.1.1. 0,002 mm
2.2.2.1.2. soil is more clay
2.2.2.2. silt
2.2.2.2.1. 0,05 mm
2.2.2.2.2. soil is more silt
2.2.2.3. sand
2.2.2.3.1. 2,0 mm
2.2.2.3.2. soil is more sand
3. CLORPT
3.1. soil distribution
3.2. Cl for climate
3.3. O for organism
3.4. R for relief
3.5. P for parent material
3.6. T for time
3.6.1. 10 cm = 2 years
4. Degradation
4.1. decline soil condition
4.1.1. by
4.1.1.1. improper use
4.1.1.2. poor management
4.2. envioromental problem
5. Urbanization
5.1. erosion cost $70 peer year
5.2. cities grow rapid
5.2.1. into farming areas
6. Overexplotation
6.1. soils are no reovable
6.1.1. someday will finished
7. Land grabbing
7.1. local communities lose acces to land
7.1.1. into farming areas