IB Geography > Ecosystems > Nutrient Cycling
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IB Geography > Ecosystems > Nutrient Cycling
- 1. Nutrient Cycling What are nutrients? Nutrient Stores Model of the mineral nutrient cycle - Gersmehl’s Nutrient Cycles The Carbon Cycle The Nitrogen Cycle Human Impact Upon Nutrient Cycling
- 3. What are nutrients? Nutrients are the chemical elements and compounds needed for organisms to grow and function. Energy flow and nutrient cycling are interdependent. The rate of nutrient cycling may limit the rate that energy can be trapped. For example: plants cannot make new cells to trap energy (grow) if essential nutrients are absent.
- 5. Nutrient Stores There are three compartments within an ecosystem that store nutrients.
- 6. Nutrient Store - Soil Soil by Flat6
- 7. Nutrient Store - Soil The unconsolidated mineral material on the immediate surface of the earth that serves as a natural medium for the growth of land plants. Soil by Flat6
- 8. Nutrient Store - Litter leaf litter by sindesign
- 9. Nutrient Store - Litter The amount of organic matter, including humus and leaf litter, in the soil. leaf litter by sindesign
- 10. Nutrient Store - Biomass Rainforest living up to its name by pfly
- 11. Nutrient Store - Biomass The total mass of living organisms, mainly plant tissue. Rainforest living up to its name by pfly
- 12. Model of the mineral nutrient cycle - Gersmehl’s Nutrient Cycles
- 13. Model of the mineral nutrient cycle - Gersmehl’s Nutrient Cycles Biomass Litter Soil
- 14. Model of the mineral nutrient cycle - Gersmehl’s Nutrient Cycles Biomass Fall out as tissues die Litter Soil
- 15. Model of the mineral nutrient cycle - Gersmehl’s Nutrient Cycles Input dissolved in rainfall Biomass Fall out as tissues die Litter Soil
- 16. Model of the mineral nutrient cycle - Gersmehl’s Nutrient Cycles Input dissolved in rainfall Biomass Fall out as tissues die Litter Loss in runoff Soil
- 17. Model of the mineral nutrient cycle - Gersmehl’s Nutrient Cycles Input dissolved in rainfall Biomass Fall out as tissues die Litter Release as litter decomposes Loss in runoff Soil
- 18. Model of the mineral nutrient cycle - Gersmehl’s Nutrient Cycles Input dissolved in rainfall Biomass Fall out as tissues die Litter Release as litter decomposes Uptake by plants Loss in runoff Soil
- 19. Model of the mineral nutrient cycle - Gersmehl’s Nutrient Cycles Input dissolved in rainfall Biomass Fall out as tissues die Litter Release as litter decomposes Uptake by plants Loss in runoff Soil Input weathered from rock
- 20. Model of the mineral nutrient cycle - Gersmehl’s Nutrient Cycles Input dissolved in rainfall Biomass Fall out as tissues die Litter Release as litter decomposes Uptake by plants Loss in runoff Soil Loss by leaching Input weathered from rock
- 21. Gersmehl’s Nutrient Cycle - Tropical Rainforest Circles: Compartments size proportional to amount of nutrient stored. Arrows: Width proportional to amount of nutrient flow
- 22. Gersmehl’s Nutrient Cycle - Tropical Rainforest Circles: Compartments size proportional to amount of nutrient stored. Arrows: Width proportional to amount of nutrient flow Precipitation Biomass Fallout Pathway Litter Uptake Pathway Runoff Soil Decay Pathway Leaching Weathering
- 23. Gersmehl’s Nutrient Cycle - Tropical Grasslands Circles: Compartments size proportional to amount of nutrient stored. Arrows: Width proportional to amount of nutrient flow
- 24. Gersmehl’s Nutrient Cycle - Tropical Grasslands Circles: Compartments size proportional to amount of nutrient stored. Arrows: Width proportional to amount of nutrient flow Precipitation Fallout Pathway Biomass Litter Uptake Pathway Runoff Decay Pathway Soil Leaching Weathering
- 25. Gersmehl’s Nutrient Cycle - Tundra Circles: Compartments size proportional to amount of nutrient stored. Arrows: Width proportional to amount of nutrient flow
- 26. Gersmehl’s Nutrient Cycle - Tundra Circles: Compartments size proportional to amount of nutrient stored. Arrows: Width proportional to amount of nutrient flow Precipitation Biomass Fallout Pathway Litter Uptake Pathway Runoff Soil Decay Pathway Leaching Weathering
- 28. The Carbon Cycle
- 29. Carbon dioxide Carbon in plants in atmosphere Carbon in animals Carbon in dead organic matter Carbon in fossil fuels
- 30. Carbon dioxide Carbon in plants in atmosphere Carbon in animals Carbon in dead organic matter Carbon in fossil fuels
- 31. photosynthesis Carbon dioxide Carbon in plants in atmosphere Carbon in animals Carbon in dead organic matter Carbon in fossil fuels
- 32. photosynthesis Carbon dioxide Carbon in plants in atmosphere Carbon in animals Carbon in dead organic matter Carbon in fossil fuels
- 33. photosynthesis Carbon dioxide Carbon in plants in atmosphere respiration Carbon in animals Carbon in dead organic matter Carbon in fossil fuels
- 34. photosynthesis Carbon dioxide Carbon in plants in atmosphere respiration Carbon in animals Carbon in dead organic matter Carbon in fossil fuels
- 35. photosynthesis Carbon dioxide Carbon in plants in atmosphere respiration ingestion / digestion Carbon in animals Carbon in dead organic matter Carbon in fossil fuels
- 36. photosynthesis Carbon dioxide Carbon in plants in atmosphere respiration ingestion / digestion Carbon in animals Carbon in dead organic matter Carbon in fossil fuels
- 37. photosynthesis Carbon dioxide Carbon in plants in atmosphere respiration ingestion / digestion Carbon in death animals Carbon in dead organic matter Carbon in fossil fuels
- 38. photosynthesis Carbon dioxide Carbon in plants in atmosphere respiration ingestion / digestion Carbon in death animals Carbon in dead organic matter Carbon in fossil fuels
- 39. photosynthesis Carbon dioxide Carbon in plants in atmosphere respiration ingestion / digestion respiration of animals Carbon in death animals Carbon in dead organic matter Carbon in fossil fuels
- 40. photosynthesis Carbon dioxide Carbon in plants in atmosphere respiration ingestion / digestion respiration of animals Carbon in death animals Carbon in dead organic matter Carbon in fossil fuels
- 41. photosynthesis Carbon dioxide Carbon in plants in atmosphere respiration ingestion / digestion respiration of animals Carbon in death animals death Carbon in dead organic matter Carbon in fossil fuels
- 42. photosynthesis Carbon dioxide Carbon in plants in atmosphere respiration ingestion / digestion respiration of animals Carbon in death animals death Carbon in dead organic matter Carbon in fossil fuels
- 43. photosynthesis Carbon dioxide Carbon in plants in atmosphere respiration ingestion / digestion respiration of animals Carbon in death animals death respiration of composers Carbon in dead organic matter Carbon in fossil fuels
- 44. photosynthesis Carbon dioxide Carbon in plants in atmosphere respiration ingestion / digestion respiration of animals Carbon in death animals death respiration of composers Carbon in dead organic matter Carbon in fossil fuels
- 45. photosynthesis Carbon dioxide Carbon in plants in atmosphere respiration ingestion / digestion respiration of animals Carbon in death animals death respiration of composers Carbon in dead organic matter fossilisation Carbon in fossil fuels
- 46. photosynthesis Carbon dioxide Carbon in plants in atmosphere respiration ingestion / digestion respiration of animals Carbon in death animals death respiration of composers Carbon in dead organic matter fossilisation Carbon in fossil fuels
- 47. photosynthesis Carbon dioxide Carbon in plants in atmosphere respiration ingestion / digestion respiration of animals Carbon in death animals death respiration of composers Carbon in dead organic matter fossilisation Carbon in burning fossil fuels
- 50. Nitrogen in the Nitrogen fixing atmosphere bacteria Nitrogen compounds in soil Nitrogen compounds in plants Nitrogen Compounds in animals
- 51. Nitrogen in the Nitrogen fixing atmosphere bacteria Nitrogen compounds in soil Nitrogen compounds in plants Nitrogen Compounds in animals
- 52. Nitrogen in the Nitrogen fixing atmosphere bacteria Nitrogen compounds in soil Nitrogen compounds in plants Nitrogen Compounds in animals
- 53. Nitrogen in the Nitrogen fixing atmosphere bacteria Nitrogen fixation Nitrogen compounds in soil Nitrogen compounds in plants Nitrogen Compounds in animals
- 54. Nitrogen in the Nitrogen fixing atmosphere bacteria Nitrogen fixation Nitrogen compounds in soil Nitrogen compounds in plants Nitrogen Compounds in animals
- 55. Nitrogen in the Nitrogen fixing atmosphere bacteria lightening Nitrogen fixation Nitrogen compounds in soil Nitrogen compounds in plants Nitrogen Compounds in animals
- 56. Nitrogen in the Nitrogen fixing atmosphere bacteria lightening Nitrogen fixation Nitrogen compounds in soil Nitrogen compounds in plants Nitrogen Compounds in animals
- 57. Nitrogen in the Nitrogen fixing atmosphere bacteria lightening Nitrogen fixation Denitrification by bacteria Nitrogen compounds in soil Nitrogen compounds in plants Nitrogen Compounds in animals
- 58. Nitrogen in the Nitrogen fixing atmosphere bacteria lightening Nitrogen fixation Denitrification by bacteria Nitrogen compounds in soil Nitrogen compounds in plants Nitrogen Compounds in animals
- 59. Nitrogen in the Nitrogen fixing atmosphere bacteria lightening Nitrogen fixation Denitrification by bacteria Nitrogen compounds in soil Protein synthesis Nitrogen compounds in plants Nitrogen Compounds in animals
- 60. Nitrogen in the Nitrogen fixing atmosphere bacteria lightening Nitrogen fixation Denitrification by bacteria Nitrogen compounds in soil Protein synthesis Nitrogen compounds in plants Nitrogen Compounds in animals
- 61. Nitrogen in the Nitrogen fixing atmosphere bacteria lightening Nitrogen fixation Denitrification by bacteria Nitrogen compounds in soil Death / nitrification Protein synthesis Nitrogen compounds in plants Nitrogen Compounds in animals
- 62. Nitrogen in the Nitrogen fixing atmosphere bacteria lightening Nitrogen fixation Denitrification by bacteria Nitrogen compounds in soil Death / nitrification Protein synthesis Nitrogen compounds in plants Nitrogen Compounds in animals
- 63. Nitrogen in the Nitrogen fixing atmosphere bacteria lightening Nitrogen fixation Denitrification by bacteria Nitrogen compounds in soil Death / nitrification Protein synthesis Nitrogen compounds in plants Digestion Nitrogen Compounds in animals
- 64. Nitrogen in the Nitrogen fixing atmosphere bacteria lightening Nitrogen fixation Denitrification by bacteria Nitrogen compounds in soil Death / nitrification Protein synthesis Nitrogen compounds in plants Digestion Nitrogen Compounds in animals
- 65. Nitrogen in the Nitrogen fixing atmosphere bacteria lightening Nitrogen fixation Denitrification by bacteria Nitrogen compounds in soil Death / nitrification Protein synthesis Nitrogen compounds in plants Digestion Nitrogen Death / excretion Compounds in animals
- 67. Human Impact Upon Nutrient Cycling
- 68. verde... by Ana Cotta
- 69. Deforestation - Backcountry Mad 7256-17A by World Resources Institute Staff
- 70. Revision: Gersmehl’s Nutrient Cycle - Tropical Rainforest Circles: Compartments size proportional to amount of nutrient stored. Arrows: Width proportional to amount of nutrient flow
- 71. Revision: Gersmehl’s Nutrient Cycle - Tropical Rainforest Circles: Compartments size proportional to amount of nutrient stored. Arrows: Width proportional to amount of nutrient flow Precipitation Biomass Fallout Pathway Litter Uptake Pathway Runoff Soil Decay Pathway Leaching Weathering
- 72. Precipitation Biomass Fallout Pathway Litter Uptake Pathway Runoff Soil Decay Pathway Leaching Weathering
- 73. Trees logged and removed Precipitation Biomass Fallout Pathway Litter Crop harvest Uptake Pathway Biomass Runoff Soil Precipitation Decay Pathway Crop Leaching Litter Weathering Ash - if burnt nutrients enter the soil as ash, such minerals are quickly used in crops or washed or leached Increased runoff Soil through the soil. Increased leaching
- 74. Ensure that you could discuss the impact of human activity upon the nutrient cycles in a named location. Sources of possible case study material: http://www.diigo.com/user/geogalot/rainforest_human_impacts