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Similar to Rgs 2019 Climate change and the carbon and water cycles in plants
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Rgs 2019 Climate change and the carbon and water cycles in plants
- 1. Professor Jeremy Pritchard @DrJPritchard The Carbon Cycle: Climate change and the BIFoR FACE experiment
- 2. CO2 - light - Sugar
- 4. Carbon Cycle
- 5. Carbon Cycle
- 6. Water Cycle
- 7. Water Cycle
- 8. CO2 H2O
- 10. Land plants evolved from an algal ancestor that lived in water.
- 11. Early land: A harsh environment
- 15. CO2 H2O
- 16. Bryophytes
- 17. H20 Bryophytes
- 18. H20 Bryophytes
- 19. H20 Bryophytes
- 20. H20 Bryophytes
- 22. Ferns
- 23. H20 Ferns
- 24. H20 Ferns
- 25. H20 Ferns
- 26. Ferns
- 27. Cycads
- 28. Cycads
- 29. H20 Cycads
- 30. H20 Cycads
- 31. H20 Cycads
- 32. H20 Cycads
- 33. Cycads
- 36. CO2 Sugar
- 37. CO2 can be good for plants
- 39. CO2 H2O
- 41. Stomata close at night Stomatal density decreases under elevated CO2 Stomatal density has decreased over climate change Hours Weeks Centuries
- 47. Education links – UoB school. Computer science
- 50. H2O
- 51. Water columns can snap
- 52. Cavitation is water boiling – Temperature AND pressure
- 53. • Cavitation effect makes a click • Clicks can be heard with a microphone
- 54. Cavitation greater when transpiration is high
- 56. Tree rings: transport efficiency vs cavitation resistance
- 57. Anna Gardner BiFor PhD Breaking news: Early data
- 58. Photosynthesis is higher at elevated CO2 Anna Gardner BiFor PhD
- 59. Stomata are more closed at elevated CO2 Anna Gardner BiFor PhD
- 61. Professor Jeremy Pritchard @DrJPritchard Stomata are the gate keepers to climate change
Editor's Notes
- Tree rings tells a story, even a cursory glance shows these two trees have had different experiences What are tree rings and why do they vary?
- http://phenocam.sr.unh.edu/webcam/sites/millhaft/ http://81.149.196.87:666/nick_test/index.html
- The width of the rings represents how successful the tree has been in doing photosyntheis each year Successful seedlings grow bigger each year (up to around the year 2000) Variation in tree rings each year are due to different environmental factors each year (eg drought, disease, competition, even volcanoes)
- Big vessels good for transport but caviate more easily Narrow vessels caviate ;ess