LTER Data Catalog

Seed Bank determined by Elutriation

Plant species and seed numbers determined by elutrication of soil.

The standard data use policy applies to the this dataset

Context:

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.
Experiment: Main Cropping System Experiment (MCSE)
Temporal Coverage: 1990-01-01 to 2002-01-01
Dataset: KBS006
Datatable ID: KBS006-002.21
Related Tables:
Personnel:
Last Updated 2009-12-31
Metadata
Variate Description Units
Year The year of the observation
Replicate The replicate (block) that the sample was taken from
Treatment The treatment (main site) that the sample was taken from
Station The station the sample was taken from
Depth The depth that the soil sample was taken from centimeter
Plantcode The plant code of the seeds observed
Species The Species name fo the seeds observed
number of seeds The number of seeds observed number

Data Excerpt

Year Replicate Treatment Station Depth Plantcode Species Number Of Seeds
2002 4 7 5 5 AMASP Amaranthus species 32
2002 4 7 2 5 AMASP Amaranthus species 6
2002 4 7 4 5 AMASP Amaranthus species 43
2002 5 1 4 5 AMASP Amaranthus species 5
2002 4 7 1 5 AMASP Amaranthus species 13
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