GLBRC Sustainability Data Catalog

Total Carbon and Nitrogen of Perennial Fine Roots 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Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director Full terms of use

Total carbon and nitrogen content of fine roots of BCSE perennial treatments (G5-G10) collected from ingrowth cores. Roots were sampled two times during the growing season: mid-season and at the end of the season. At KBS, roots are composited by replicate before CN analysis; at Arlington, roots from all stations are analyzed.

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 2009 to January 2013
Dataset: GLBRC089
Datatable ID: GLBRC089-008.71
Repository link:
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Last Updated 2023-04-20
Variate Description Units
year year of the growing season
sample date the date that the root ingrowth core was removed
site experiment location
experiment
treatment experimental treatment
treatment name description of the treatment
replicate replicate nested within treatment
station sampling location
percent carbon root carbon as percent %
percent nitrogen root nitrogen as percent %
wi plot id Arlington Wisconsin plot identifier
comment notes about the data row

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Data Excerpt

year sample_date site experiment treatment treatment_name replicate station percent_carbon percent_nitrogen wi_plot_id comments
2009 2009-08-17 Arlington GLBRC Intensive Site GLBRC Biofuel Cropping System Experiment G10 Restored Prairie R1 S1 30.91 1.08 105
2009 2009-08-17 Arlington GLBRC Intensive Site GLBRC Biofuel Cropping System Experiment G10 Restored Prairie R1 S3 36.48 1.72 105
2009 2009-08-17 Arlington GLBRC Intensive Site GLBRC Biofuel Cropping System Experiment G10 Restored Prairie R1 S2 36.57 1.22 105
2009 2009-08-17 Arlington GLBRC Intensive Site GLBRC Biofuel Cropping System Experiment G10 Restored Prairie R2 S2 33.83 1.63 208
2009 2009-08-17 Arlington GLBRC Intensive Site GLBRC Biofuel Cropping System Experiment G10 Restored Prairie R2 S3 29.51 1.21 208
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