Presentation is loading. Please wait.

Presentation is loading. Please wait.

Biogeochemical Cycles

Published byMarvin Lynch Modified over 6 years ago

Similar presentations

Presentation on theme: "Biogeochemical Cycles"— Presentation transcript:

1 Biogeochemical Cycles

2 3 Fundamental Laws of Nature
Conservation of Matter 1st Law of Thermodynamics (Conservation of Energy) 2nd Law of Thermodynamics (Entropy)

3 Earth: Matter does not come and go
Earth is a Closed System to Matter

4 Biogeochemical Cycles: Reservoirs & Pathways
Atmosphere Biosphere Lithosphere Hydrosphere

5 Some Major Cycles of Matter
Water Cycle Rock Cycle Chemical Cycles Carbon Nitrogen Phosphorous Sulfur

6 Carbon Cycle Atmosphere Biosphere Lithosphere Hydrosphere

7 Carbon Cycle: Reservoirs
Atmosphere 1x (= 7.3x1017 grams carbon) Biosphere 3x 55x 35,000x Lithosphere Hydrosphere

8 Carbon Cycle Atmosphere Biosphere Lithosphere Hydrosphere
Respiration& Decay Photosynthesis Biosphere Lithosphere Hydrosphere

9 Carbon Cycle Atmosphere Biosphere Lithosphere Hydrosphere
Respiration& Decay Photosynthesis Dissolution Weathering & Volcanism Exsolution Biosphere Burial & Lithification Lithosphere Photosynthesis Burial & Lithification Hydrosphere

10 Carbon Cycle Human Impacts Atmosphere Biosphere Net Effect:
Deforestation: Decrease Photosynthesis Increase Respiration Atmosphere Burning fossil fuels: Increased combustion Biosphere Net Effect: Increase in Carbon in Atmosphere Lithosphere Hydrosphere

11 Atmospheric Carbon Dioxide
northern winter northern summer

12

13 Nitrogen Cycle Atmosphere Biosphere Lithosphere Hydrosphere
Denitification: bacteria Biosphere Nitrogen fixation: bacteria lightning Absorption Waste & Decomposition Erosion Lithosphere Hydrosphere

14 Nitrogen-Fixing Bacteria in Root Nodules

15 Nitrogen Cycle Human Impacts Atmosphere Biosphere Net Effect:
Increase in Nitrogen in water & soil Nitrogen fixation: industrial (fertilizer) combustion Increased Erosion Lithosphere Hydrosphere

16 Phosphorous Cycle Atmosphere Biosphere Lithosphere Hydrosphere
Never enters the atmosphere Atmosphere Biosphere Absorption Waste & Decomposition Weathering & Erosion Lithosphere Hydrosphere Absorption Sedimentation

17 Phosphorous Cycle Human Impacts Biosphere Net Effect:
Increase in phosphorous in water & “algal blooms”; Depletion in soils Mining, use (fertilizer, detergent, etc.) & increased runoff Lithosphere Hydrosphere More Phos. for organisms

18 Eutrophication

19 Impact: Red Tide

20 Sulfur Cycle Atmosphere Biosphere Lithosphere Hydrosphere Bacteria
Absorption Bacteria Release Biosphere Volcanoes & Weathering Absorption Precipitation Waste & Decomposition Weathering “Evaporation” Sedimentation Lithosphere Hydrosphere Absorption Deep Sea Vents

21 Sulfur Cycle Human Impacts Atmosphere Biosphere Net Effect:
Increase in atmosphere (health effects) and acid rain Precipitation” Acid Rain Burning Fossil Fuels Lithosphere Hydrosphere

22 What is the ultimate interface of all 4 reservoirs for these cycles?
Soil

Download ppt "Biogeochemical Cycles"

Similar presentations

Geologic Time Scale.

Geologic Time Scale.
3-3 Cycles of Matter Page 74.

3-3 Cycles of Matter Page 74.
Cycling of Matter. Recap: Environment: all abiotic and biotic factors that exist on Earth as well as their interactions Abiotic: non-living factors Biotic:

Cycling of Matter. Recap: Environment: all abiotic and biotic factors that exist on Earth as well as their interactions Abiotic: non-living factors Biotic:
Environmental Cycles The Movement of Matter and Energy Through the World.

Environmental Cycles The Movement of Matter and Energy Through the World.
Scientific Method Raise question Gather data. Scientific Method Raise question Gather data Form hypothesis Test and modify hypothesis.

Scientific Method Raise question Gather data. Scientific Method Raise question Gather data Form hypothesis Test and modify hypothesis.
Applying the Rules to Environmental Science: Biogeochemical Cycles.

Applying the Rules to Environmental Science: Biogeochemical Cycles.
CYCLING OF CARBON ATOMS. Life on Earth depends upon one–way flow of high–quality energy from sun & cycling of crucial elements.

CYCLING OF CARBON ATOMS. Life on Earth depends upon one–way flow of high–quality energy from sun & cycling of crucial elements.
Nutrient Cycling Biogeochemical Cycles Energy vs. Matter  Energy flows throughout an ecosystem in ONE direction from the sun to autotrophs to heterotrophs.

Nutrient Cycling Biogeochemical Cycles Energy vs. Matter  Energy flows throughout an ecosystem in ONE direction from the sun to autotrophs to heterotrophs.
KEY CONCEPT Matter cycles in and out of an ecosystem.

KEY CONCEPT Matter cycles in and out of an ecosystem.
Cycles Unit 4 Section 3. Water Cycle Water constantly moves between the oceans, atmosphere and the land It can be inside or outside of living organisms.

Cycles Unit 4 Section 3. Water Cycle Water constantly moves between the oceans, atmosphere and the land It can be inside or outside of living organisms.
Biogeochemical Cycles. 3 Fundamental Laws of Nature Conservation of Matter 1st Law of Thermodynamics (Conservation of Energy) 2nd Law of Thermodynamics.

Biogeochemical Cycles. 3 Fundamental Laws of Nature Conservation of Matter 1st Law of Thermodynamics (Conservation of Energy) 2nd Law of Thermodynamics.
KEY CONCEPT Matter cycles in and out of an ecosystem.

KEY CONCEPT Matter cycles in and out of an ecosystem.
CH. 3.3 CYCLES OF MATTER. RECYCLING IN THE BIOSPHERE ENERGY MOVES ONE WAY THROUGH THE BIOSPHERE BUT MATTER IS RECYCLED WITHIN AND BETWEEN ECOSYSTEMS.

CH. 3.3 CYCLES OF MATTER. RECYCLING IN THE BIOSPHERE ENERGY MOVES ONE WAY THROUGH THE BIOSPHERE BUT MATTER IS RECYCLED WITHIN AND BETWEEN ECOSYSTEMS.
Hydrological Carbon Nitrogen Phosphorous Biogeochemical Cycles.

Hydrological Carbon Nitrogen Phosphorous Biogeochemical Cycles.
Section 3 Cycling of Materials in Ecosystems Grade 10 Biology Spring 2011.

Section 3 Cycling of Materials in Ecosystems Grade 10 Biology Spring 2011.
Biogeochemical Cycles 12/6/11. What are biogeochemical cycles? Biogeochemical cycles= complete path a chemical takes through the atmosphere, hydrosphere.

Biogeochemical Cycles 12/6/11. What are biogeochemical cycles? Biogeochemical cycles= complete path a chemical takes through the atmosphere, hydrosphere.
Nutrient Cycling 3.3. Energy vs. Matter  Energy flows throughout an ecosystem in ONE direction from the sun to autotrophs to heterotrophs  Matter is.

Nutrient Cycling 3.3. Energy vs. Matter  Energy flows throughout an ecosystem in ONE direction from the sun to autotrophs to heterotrophs  Matter is.
Cycles That Occur in Nature. Water cycle  Moves between atmosphere, oceans & land  1 – water evaporates from the ocean  2 – water also evaporates.

Cycles That Occur in Nature. Water cycle  Moves between atmosphere, oceans & land  1 – water evaporates from the ocean  2 – water also evaporates.
CYCLING IN THE ECOSYSTEM pp. 371-374. DEFINITIONS Ecosystem: an environment where the living (biotic) and non-living (abiotic) things affect one another.

CYCLING IN THE ECOSYSTEM pp DEFINITIONS Ecosystem: an environment where the living (biotic) and non-living (abiotic) things affect one another.
13.5 Cycling of Matter A biogeochemical cycle is the movement of a particular chemical through the biological and geological parts of an ecosystem. Matter.

13.5 Cycling of Matter A biogeochemical cycle is the movement of a particular chemical through the biological and geological parts of an ecosystem. Matter.

Similar presentations

Ads by Google