Seed Bank via Elutriation — Main Cropping System Experiment (MCSE)
Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director Full terms of use
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:
- how well the seed bank predicts weed abundances and composition in subsequent years, and
- 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: | KBS006-002.27 |
| Core Areas | Populations,Disturbance |
| Repository link: | http://doi.org/10.6073/pasta/c376065b1f83da0c335ca1091edf0491 |
| Related Tables: | |
| Personnel: |
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| Last Updated | 2020-07-10 |
| 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 | false | 28.35 | Anthemis arvensis L. | 3 | 141.75 | |
| 2008-05-29 | T4 | R1 | S1 | 0-5 cm | 10 | false | 28.35 | Chenopodium album L. | 26 | 141.75 | |
| 2008-05-29 | T4 | R1 | S1 | 0-5 cm | 10 | false | 28.35 | Setaria sp. (*) | 4 | 141.75 | |
| 2008-05-29 | T4 | R1 | S1 | 0-5 cm | 10 | false | 28.35 | Stellaria media (L.) Vill. | 12 | 141.75 | |
| 2008-05-29 | T4 | R1 | S1 | 0-5 cm | 10 | false | 28.35 | Trifolium pratense L. | 1 | 141.75 |