Soil Organic Matter - PowerPoint PPT Presentation

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Soil Organic Matter

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Soil Organic Matter Chapter 12 I. Global Carbon Cycle II. Process of Decomposition III. Factors Controlling Rates of Decomp IV. Humus V. Composting I. Global ... – PowerPoint PPT presentation

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Title: Soil Organic Matter


1
Soil Organic Matter
  • Chapter 12

2
  • I. Global Carbon Cycle
  • II. Process of Decomposition
  • III. Factors Controlling Rates of Decomp
  • IV. Humus
  • V. Composting

3
  • I. Global Carbon Cycle
  • A. Pathways
  • B. Carbon sources to soil

4
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5
  • II. Process of Decomposition
  • A. Definition
  • B. Composition of plant material
  • C. Aerobic decomposition
  • D. Anaerobic decomposition
  • E. Mineralization

6
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7
  • III. Factors Controlling Rates of Decomposition
    and Mineralization
  • A. Environmental Conditions
  • B. Residue Quality

8
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9
Figure 12.7
10
  • IV. Humus
  • A. Definitions
  • B. Colloidal Characteristics

11
Figure 12.9
12
  • V. Composting

13
Fig. 12.13
14
Fig. 12.12
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