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Leaf area index (LAI)
the total surface area of leaves per unit ground area
Soil formation 5 factors that influence it
) Parent material
) Climate factors
) Biotic factors
) Topography
) Time
5 Major soil horizons
O =organic layer
A & E = topsoil
B = subsoil
C = Bedrock, unconsolidated
Cation exchange capacity
Smaller particles (↑clay) and organic matter increase ion-soil interactions (cation exchange)
Cation exchange capacity (CEC)
total number of negatively charged sites
Biomes are in response to climatic pattern of…
mean annual temperature and preciptiation… topography, soil type, disturbance, etc.
