2.3 Nutrient (Biogeochemical)
Cycles
- organisms require essential
nutrients for growth (CHNOPS)
- nutrients are continually
recycled within an ecosystem
1. Water Cycle
Precipitation
Evaporation
Water vapor
in atmosphere
Evaporation
Evaporation
from land
&
from
ocean
transpiration
from plants Precipitation
Precipitation
over ocean
over land
Water in
ocean
Surface
(reservoir)
runoff
Groundwater
seepage
Water
Cycle
Reservoirs
Processes/
Locations
2. Carbon-Oxygen Cycles
Photosynthesis
CO2 + H2O
C6H12O6 + O2
Cellular Respiration
___
C6H12O6 + O2
CO2 + H2O
The Carbon Cycle
CO2 in
atmosphere
(reservoir)
Burning of
CO2 dissolvedfossil fuels
Fire
in ocean
Respitation
(reservoir)
Consumers
Wastes,
bodies
SoilDead
bacteria
&
detritus feeders
Producers
Reservoirs
Processes/
Locations
Trophic
Levels/
Organisms
3. Nitrogen Cycle
Nitrogen
Fixation
78% of
Atmosphere
Free Nitrogen
Denitrification
Producers
Soil
Consumers
Decomposers
The Nitrogen Cycle
Reservoirs
Nitrogen
Nitrogen in
in
Atmosphere
Reservoir
Reservoir
Electrical storms
produce nitrate
Processes/
Locations
Consumers
Producers
Trophic
Levels/
Wastes,
Organisms
Dead bodies
Uptake
Dentitrifying
Nitrogen-fixing
by Soil bacteria and
bacteria
bacteria in
plants detritus feeders
legume roots
Ammonia and soil
& nitrate
3
4
4
2
3
Simple food
1 web on a
2 short-grass
prairie
2
2
2
3
1
2
3
3
4
2
3
2
Food Web
Numbers
represent
trophic
levels
Energy Flow and
Nutrient Cycles
Nutrients Cycles
Energy From Sun
Energy Flows
Heat Lost at
Each Energy
Transfer
Primary Productivity: Photosynthesis
Energy
O2
Life uses <
from released
sunlight to air
.03% of the
sun's
CO2
Sugar
Growth
incident
absorbedPhotosynthesis
synthesized
from air
energy
Most is lost as
heat from
respiration
H2O
Minerals
absorbed absorbed
from soil from soil
Land Food Chain
Tertiary
Consumer
Primary
Consumer
Secondary
Consumer
Producer
Producers
Primary
Consumer
Tertiary
Consumer
Aquatic Food Chain
Secondary
Consumer
2.3 Nutrient (Biogeochemical)
Cycles
- organisms require essential
nutrients for growth (CHNOPS)
- nutrients are continually
recycled within an ecosystem
1. Water Cycle
Precipitation
Evaporation
Water vapor
in atmosphere
Evaporation
Evaporation
from land
&
from
ocean
transpiration
from plants Precipitation
Precipitation
over ocean
over land
Water in
ocean
Surface
(reservoir)
runoff
Groundwater
seepage
Water
Cycle
Reservoirs
Processes/
Locations
2. Carbon-Oxygen Cycles
Photosynthesis
CO2 + H2O
C6H12O6 + O2
Cellular Respiration
___
C6H12O6 + O2
CO2 + H2O
The Carbon Cycle
CO2 in
atmosphere
(reservoir)
Burning of
CO2 dissolvedfossil fuels
Fire
in ocean
Respitation
(reservoir)
Consumers
Wastes,
bodies
SoilDead
bacteria
&
detritus feeders
Producers
Reservoirs
Processes/
Locations
Trophic
Levels/
Organisms
3. Nitrogen Cycle
Nitrogen
Fixation
78% of
Atmosphere
Free Nitrogen
Denitrification
Producers
Soil
Consumers
Decomposers
The Nitrogen Cycle
Reservoirs
Nitrogen
Nitrogen in
in
Atmosphere
Reservoir
Reservoir
Electrical storms
produce nitrate
Processes/
Locations
Consumers
Producers
Trophic
Levels/
Wastes,
Organisms
Dead bodies
Uptake
Dentitrifying
Nitrogen-fixing
by Soil bacteria and
bacteria
bacteria in
plants detritus feeders
legume roots
Ammonia and soil
& nitrate
3
4
4
2
3
Simple food
1 web on a
2 short-grass
prairie
2
2
2
3
1
2
3
3
4
2
3
2
Food Web
Numbers
represent
trophic
levels
Energy Flow and
Nutrient Cycles
Nutrients Cycles
Energy From Sun
Energy Flows
Heat Lost at
Each Energy
Transfer
Primary Productivity: Photosynthesis
Energy
O2
Life uses <
from released
sunlight to air
.03% of the
sun's
CO2
Sugar
Growth
incident
absorbedPhotosynthesis
synthesized
from air
energy
Most is lost as
heat from
respiration
H2O
Minerals
absorbed absorbed
from soil from soil
Land Food Chain
Tertiary
Consumer
Primary
Consumer
Secondary
Consumer
Producer
Producers
Primary
Consumer
Tertiary
Consumer
Aquatic Food Chain
Secondary
Consumer
2.3 Nutrient (Biogeochemical)
Cycles
- organisms require essential
nutrients for growth (CHNOPS)
- nutrients are continually
recycled within an ecosystem
1. Water Cycle
Precipitation
Evaporation
Water vapor
in atmosphere
Evaporation
Evaporation
from land
&
from
ocean
transpiration
from plants Precipitation
Precipitation
over ocean
over land
Water in
ocean
Surface
(reservoir)
runoff
Groundwater
seepage
Water
Cycle
Reservoirs
Processes/
Locations
2. Carbon-Oxygen Cycles
Photosynthesis
CO2 + H2O
C6H12O6 + O2
Cellular Respiration
___
C6H12O6 + O2
CO2 + H2O
The Carbon Cycle
CO2 in
atmosphere
(reservoir)
Burning of
CO2 dissolvedfossil fuels
Fire
in ocean
Respitation
(reservoir)
Consumers
Wastes,
bodies
SoilDead
bacteria
&
detritus feeders
Producers
Reservoirs
Processes/
Locations
Trophic
Levels/
Organisms
3. Nitrogen Cycle
Nitrogen
Fixation
78% of
Atmosphere
Free Nitrogen
Denitrification
Producers
Soil
Consumers
Decomposers
The Nitrogen Cycle
Reservoirs
Nitrogen
Nitrogen in
in
Atmosphere
Reservoir
Reservoir
Electrical storms
produce nitrate
Processes/
Locations
Consumers
Producers
Trophic
Levels/
Wastes,
Organisms
Dead bodies
Uptake
Dentitrifying
Nitrogen-fixing
by Soil bacteria and
bacteria
bacteria in
plants detritus feeders
legume roots
Ammonia and soil
& nitrate
3
4
4
2
3
Simple food
1 web on a
2 short-grass
prairie
2
2
2
3
1
2
3
3
4
2
3
2
Food Web
Numbers
represent
trophic
levels
Energy Flow and
Nutrient Cycles
Nutrients Cycles
Energy From Sun
Energy Flows
Heat Lost at
Each Energy
Transfer
Primary Productivity: Photosynthesis
Energy
O2
Life uses <
from released
sunlight to air
.03% of the
sun's
CO2
Sugar
Growth
incident
absorbedPhotosynthesis
synthesized
from air
energy
Most is lost as
heat from
respiration
H2O
Minerals
absorbed absorbed
from soil from soil
Land Food Chain
Tertiary
Consumer
Primary
Consumer
Secondary
Consumer
Producer
Producers
Primary
Consumer
Tertiary
Consumer
Aquatic Food Chain
Secondary
Consumer