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The Nutrient Cycling Model - Coggle Diagram
The Nutrient Cycling
Model
nutrients are continuously being
circulated + recycled
Plants
absorb various
nutrients as:
gases from
atmosphere
soluble salts
from soil
Nutrients
D: chemical elements found in soil
which are essential for plant growth
& maintenance of fertility of soil
4 primary
elements
Carbon
Hydrogen,
Nitrogen
Oxygen
5 secondary
elements
(smaller amounts)
Calcium
Magnesium
Potassium
Sulfur
Phosphorous
Stores + Transfers
nutrients cycle
between stores
Biomass
fallout
Litter
2.Litter - dead organic matter broken
down +
decomposed
into Soil
Soil - plants
uptake
nutrients via
roots into Biomass
Inputs
carbon dissolved in
precipitation
minerals
weathered
from bedrock
Outputs
runoff
from
litter store
leeching
from
soil store
Proportion relative
amounts:
larger circles,
larger stores
thicker arrows,
greater volume transferred
Rate of Nutrient
Transfer
Climate
hot, wet tropical rainforests -
rate of decomposition +
leeching high
Soils
acidic soils fewer soil
organisms so slower
decomposition
Vegetation
Types
leaves from coniferous
trees longer to decompose
than deciduous