Biogeochemical
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The document summarizes several key biogeochemical cycles, including the carbon, nitrogen, sulfur, phosphorus, hydrologic, rock, and tectonic cycles. It describes the processes involved in each cycle, such as photosynthesis, respiration, nitrogen fixation, and denitrification. It also notes how human activities like burning fossil fuels and agriculture can disrupt these natural cycles.
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Biogeochemical
- 1. BIOGEOCHEMICAL CYCLES Jonathan S. Rubio
- 4. D. T. Krohne, General Ecology
- 10. Hydrologic cycle
- 12. The Rock Cycle
- 14. The Carbon Oxygen Cycle
- 15. Fig 5.15 © 2005 John Wiley and Sons Publishers Respiration C 6 H 12 O 6 + 6 O 2 6 CO 2 + 6 H 2 O +energy
- 16. Modified from D. T. Krohne, General Ecology 15%/year CO 2 & CH 4
- 19. Modified from D. T. Krohne, General Ecology 50% fertilizer (Bacteria)
- 23. D. T. Krohne, General Ecology D. T. Krohne, General Ecology Modified from D. T. Krohne, General Ecology Gaseous phase
- 25. The Sulfur Cycle
Editor's Notes
- Idealized diagram illustrating photosynthesis for a green plan (tree) and generalized reaction.
- There are two general types of nitrogen fixers Cyanobacteria – primary producers, e.g., blue/green algae – fix their own carbohydrates Bacteria that require a source of carbohydrates Get it from dead organic matter in soil Get it directly from plants in a symbiotic relationship - mychorhizae