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Surface Samples and Trapping

Poska, Anneli LU (2013) In Encyclopedia of Quaternary Science (Second Edition) p.839-845
Abstract
Abstract: Reference pollen data for use in interpreting fossil pollen assemblages may be either collected as surface samples or monitored by means of pollen traps. Surface samples can be obtained from moss polsters or lake-surface sediment, or exceptionally soil, leaf litter, or snow. The advantage of such samples is that a large number can be collected relatively quickly. Within the resulting pollen assemblage, however, the presence of each taxon has to be expressed in percentage terms. Reference material obtained from pollen traps offers more possibilities because pollen accumulation rates (PARs, grains cmâ 2 yearâ 1) can be calculated, and the record of each taxon can be considered independently. This allows comparisons over distance... (More)
Abstract: Reference pollen data for use in interpreting fossil pollen assemblages may be either collected as surface samples or monitored by means of pollen traps. Surface samples can be obtained from moss polsters or lake-surface sediment, or exceptionally soil, leaf litter, or snow. The advantage of such samples is that a large number can be collected relatively quickly. Within the resulting pollen assemblage, however, the presence of each taxon has to be expressed in percentage terms. Reference material obtained from pollen traps offers more possibilities because pollen accumulation rates (PARs, grains cmâ 2 yearâ 1) can be calculated, and the record of each taxon can be considered independently. This allows comparisons over distance and between vegetation regions. The collection of such data using traps requires several years because the annual variation in pollen production, which is partly determined by climate, is great, and it is only the long-term average PAR that reflects vegetation composition. The number and location of samples and the amount of accompanying vegetation data should be appropriate for the research question to which they will be applied because there is no single standard that is suitable for the whole range of possible uses. (Less)
Please use this url to cite or link to this publication:
author
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Analog approach, Annual variation, Databases, Modern reference material, Moss polsters, Pollen accumulation rates, Pollen data training sets, Pollen dispersal models, Pollen monitoring program, Pollen percentages, Pollen productivity, Spatial resolution, Surface sample, Tauber-type trap, Temporal resolution
in
Encyclopedia of Quaternary Science (Second Edition)
editor
Mock, Scott A. EliasCary J.
pages
839 - 845
publisher
Elsevier
ISBN
978-0-444-53642-6
DOI
10.1016/B978-0-444-53643-3.00179-5
project
MERGE
language
English
LU publication?
no
id
9699a036-018e-42df-b0be-0aacb1f4b4bc (old id 4862947)
date added to LUP
2014-12-15 11:37:21
date last changed
2016-09-23 15:15:36
@misc{9699a036-018e-42df-b0be-0aacb1f4b4bc,
  abstract     = {Abstract: Reference pollen data for use in interpreting fossil pollen assemblages may be either collected as surface samples or monitored by means of pollen traps. Surface samples can be obtained from moss polsters or lake-surface sediment, or exceptionally soil, leaf litter, or snow. The advantage of such samples is that a large number can be collected relatively quickly. Within the resulting pollen assemblage, however, the presence of each taxon has to be expressed in percentage terms. Reference material obtained from pollen traps offers more possibilities because pollen accumulation rates (PARs, grains cmâ 2 yearâ 1) can be calculated, and the record of each taxon can be considered independently. This allows comparisons over distance and between vegetation regions. The collection of such data using traps requires several years because the annual variation in pollen production, which is partly determined by climate, is great, and it is only the long-term average PAR that reflects vegetation composition. The number and location of samples and the amount of accompanying vegetation data should be appropriate for the research question to which they will be applied because there is no single standard that is suitable for the whole range of possible uses.},
  author       = {Poska, Anneli},
  editor       = {Mock, Scott A. EliasCary J.},
  isbn         = {978-0-444-53642-6},
  keyword      = {Analog approach,Annual variation,Databases,Modern reference material,Moss polsters,Pollen accumulation rates,Pollen data training sets,Pollen dispersal models,Pollen monitoring program,Pollen percentages,Pollen productivity,Spatial resolution,Surface sample,Tauber-type trap,Temporal resolution},
  language     = {eng},
  pages        = {839--845},
  publisher    = {ARRAY(0xcfd6788)},
  series       = {Encyclopedia of Quaternary Science (Second Edition)},
  title        = {Surface Samples and Trapping},
  url          = {http://dx.doi.org/10.1016/B978-0-444-53643-3.00179-5},
  year         = {2013},
}