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IB Geography > Ecosystems > Nutrient Cycling

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    IB Geography > Ecosystems > Nutrient Cycling - Presentation Transcript

    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
    2. What are nutrients?
    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.
    4. Nutrient Stores
    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
    27. The Carbon Cycle
    28. Carbon dioxide Carbon in plants in atmosphere Carbon in animals Carbon in dead organic matter Carbon in fossil fuels
    29. Carbon dioxide Carbon in plants in atmosphere Carbon in animals Carbon in dead organic matter Carbon in fossil fuels
    30. photosynthesis 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 respiration 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 ingestion / digestion 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 death 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 respiration of animals 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 death 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 respiration of composers 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 fossilisation 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 burning fossil fuels
    47. The Nitrogen Cycle
    48. Nitrogen in the Nitrogen fixing atmosphere bacteria Nitrogen compounds in soil Nitrogen compounds in plants Nitrogen Compounds in animals
    49. Nitrogen in the Nitrogen fixing atmosphere bacteria Nitrogen compounds in soil Nitrogen compounds in plants Nitrogen Compounds in animals
    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 fixation Nitrogen compounds in soil Nitrogen compounds in plants Nitrogen Compounds in animals
    52. Nitrogen in the Nitrogen fixing atmosphere bacteria Nitrogen fixation Nitrogen compounds in soil Nitrogen compounds in plants Nitrogen Compounds in animals
    53. Nitrogen in the Nitrogen fixing atmosphere bacteria lightening Nitrogen fixation Nitrogen compounds in soil Nitrogen compounds in plants Nitrogen Compounds in animals
    54. Nitrogen in the Nitrogen fixing atmosphere bacteria lightening 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 Denitrification by bacteria Nitrogen compounds in soil Nitrogen compounds in plants Nitrogen Compounds in animals
    56. 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
    57. 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
    58. 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
    59. 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
    60. 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
    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 Digestion 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 Digestion 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 Death / excretion Compounds in animals
    64. Human Impact Upon Nutrient Cycling
    65. verde... by Ana Cotta
    66. Deforestation - Backcountry Mad 7256-17A by World Resources Institute Staff
    67. Revision: Gersmehl’s Nutrient Cycle - Tropical Rainforest Circles: Compartments size proportional to amount of nutrient stored. Arrows: Width proportional to amount of nutrient flow
    68. 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
    69. Precipitation Biomass Fallout Pathway Litter Uptake Pathway Runoff Soil Decay Pathway Leaching Weathering
    70. 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
    71. 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

    + Richard AllawayRichard Allaway, 6 months ago

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