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Pollen Analysis - PowerPoint PPT Presentation


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Pollen Analysis. Correlate Quaternary stratigraphic units. Reconstruct vegetation history. To investigate the impact of human activities on late Quaternary vegetation and landscape in many parts of the world. Pollen Analysis. Pollen Characteristics. Resistant to decay .

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Presentation Transcript
slide1

Pollen Analysis

  • Correlate Quaternary stratigraphic units
  • Reconstruct vegetation history
  • To investigate the impact of human activities on late Quaternary vegetation and landscape in many parts of the world
slide2

Pollen Analysis

Pollen Characteristics

  • Resistant to decay
  • Morphological characteristics specific to plant groups
  • Produced in vast quantities
  • Reflect the natural vegetation of a location
  • Small (10-150 u)
slide3

Pollen Analysis

Pollen production

  • All plants that have sexual reproduction
  • Productivity depends on dispersal mechanism          Autogamous (self fertilised)                     = very small amounts of pollen           Entomophilous/zoophilous (insect & animal)                     = small amounts of pollen           Anemophilous (wind)                     = large amounts of pollen
slide4

Pollen Analysis

Pollen dispersal

  • Most pollen not carried far from site (1 km)
  • Some can travel very long distances
  • Dispersal as a function of:                     grain size                     wind (direction speed)                     precipitation
  • Plant habit and dispersal                    low vegetation                     trees
slide5

Pollen Analysis

Pollen Diagrams