Fine Root Production of Perennial Crops by Ingrowth Cores — GLBRC Biofuel Cropping System Experiment
Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director Full terms of use
Fine root production of BCSE perennial treatments (G5-G10) estimated by the ingrowth core method. Two ingrowth cores were buried in the soil at the beginning of the growing season at each sampling station (S1-S3); one was collected mid-season and the other at the end of the season to determine an approximate peak standing root biomass or belowground net primary production (BNPP).
This datatable is part of the Roots of the Biofuel Cropping System Experiment dataset.
Different sampling methods are used to measure root production in the diverse cropping systems of the GLBRC Biofuel Cropping System Experiment (BCSE). For annual crop treatments (G1-G4), root biomass is sampled by excavating a single plant (KBS) or a known soil area (Arlington). For perennial crop treatments (G5-G10), root biomass is sampled from ~1 m deep cores and fine root production is estimated from ingrowth cores buried at the beginning of the growing season. In general, root sampling occurs around three sampling stations (S1-S3) in each replicate block (R1-R5) and at peak biomass, which means physiological maturity for annuals and pre-senescence for perennials. Roots may be analyzed for total carbon and nitrogen content.
Note
| Experiment: | GLBRC Biofuel Cropping System Experiment |
| Data available from: | January 2008 to January 2013 |
| Dataset: | GLBRC089 |
| Datatable ID: | GLBRC089-002.79 |
| Core Areas | Primary Production |
| Repository link: | |
| Related Tables: |
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| Personnel: |
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| Last Updated | 2023-10-24 |
| Variate | Description | Units |
|---|---|---|
| year | year of growing season | |
| date installed | The date that the root ingrowth core was installed. | |
| sample date | The date that the root ingrowth core was removed. | |
| site | experiment location | |
| treatment | experiment treatment | |
| replicate | replicate nested within treatment | |
| station | sampling location | |
| depth bottom | Lower depth of the root core. Upper core area is at surface. | |
| core area | area of the root core tube | |
| species | crop plants | |
| biomass g m2 | root biomass | g/m2 |
| campaign | distinct research activity | |
| wi plot id | plot identifier used only by Arlington site | |
| comments | notes about the data row |
| Protocols |
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| Below Ground Net Primary Production- GLBRC Intensive Sites |
| Belowground Net Primary Production – Biofuel Cropping System Experiment |
GLBRC data is not yet publicly available.
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| year | date_installed | sample_date | site | treatment | replicate | station | depth_bottom | core_area | species | biomass_g_m2 | campaign | wi_plot_id | comments |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2008 | 2008-08-14 | 2008-08-14 | Arlington GLBRC Intensive Site | G9 | R1 | S1 | 15.0 | 19.63 | successional vegetation | 229.18 | mid-season | 106 | soil core assay of fine root biomass |
| 2008 | 2008-08-14 | 2008-08-14 | Arlington GLBRC Intensive Site | G9 | R2 | S1 | 15.0 | 19.63 | successional vegetation | 96.77 | mid-season | 210 | soil core assay of fine root biomass |
| 2008 | 2008-08-14 | 2008-08-14 | Arlington GLBRC Intensive Site | G9 | R3 | S1 | 15.0 | 19.63 | successional vegetation | 208.81 | mid-season | 312 | soil core assay of fine root biomass |
| 2008 | 2008-08-25 | 2008-08-25 | Arlington GLBRC Intensive Site | G10 | R1 | S1 | 15.0 | 19.63 | native prairie | 45.84 | mid-season | 105 | soil core assay of fine root biomass |
| 2008 | 2008-08-25 | 2008-08-25 | Arlington GLBRC Intensive Site | G10 | R2 | S1 | 15.0 | 19.63 | native prairie | 779.22 | mid-season | 208 | soil core assay of fine root biomass |