Seed Bank via Elutriation

Plant species and seed numbers determined by elutrication of soil.

This datatable is part of the Distribution and Composition of the Seed Bank dataset. The distribution and composition of the weed seed bank in treatments 1-7 of the LTER main site is periodically (every 3-6 years) evaluated using elutriation and seed counting methods. The goal is to determine:

  1. how well the seed bank predicts weed abundances and composition in subsequent years, and
  2. how changes in disturbance (tillage) and plant species (cropping systems) affect the bank. Composite soil samples to two depths are periodically elutriated to determine seed densities, species composition, and viabilities of seven target species which are dominant on the site.

Note

Experiment: Main Cropping System Experiment (MCSE)
Data available from: April 1990 to May 2008
Dataset: KBS006
Datatable ID: KBS006-002.25
Core Areas Populations,Disturbance
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Last Updated 2017-01-26
Status
  • Completed
Variate Description Units
sample date date of the observation
treatment treatment that the sample was taken from
replicate treatment (main site) that the sample was taken from
station station the sample was taken from
depth depth range that the soil sample was taken from
cores number of cores examined number
sample divided if the sample was divided before elutriation
surface area examined sq cm surface area examined by summing the surface area of all of the cores examined squarecentimeters
ridge or furrow if the sample was taken from a ridge or furrow area (denoted by R or F) or if the sample was not split into ridge and furrow as indicated by a blank entry
species species that was found
number of seeds number of seeds found number
soil volume elutriated cu cm soil volume elutriated in cubic centimeters cm^3

Data Excerpt

sample_date treatment replicate station depth cores sample_divided surface_area_examined_sq_cm ridge_or_furrow species number_of_seeds soil_volume_elutriated_cu_cm
2008-05-29 T4 R1 S1 0-5 cm 10 f 28.35 Anthemis arvensis L. 3 141.75
2008-05-29 T4 R1 S1 0-5 cm 10 f 28.35 Chenopodium album L. 26 141.75
2008-05-29 T4 R1 S1 0-5 cm 10 f 28.35 Setaria sp. (*) 4 141.75
2008-05-29 T4 R1 S1 0-5 cm 10 f 28.35 Stellaria media (L.) Vill. 12 141.75
2008-05-29 T4 R1 S1 0-5 cm 10 f 28.35 Trifolium pratense L. 1 141.75
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