GLBRC Sustainability Data Catalog

Plant Total Carbon and Nitrogen — GLBRC Scale-up 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Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director Full terms of use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 plants of the GLBRC Scale-up Experiment. Dried and ground subsamples of peak biomass samples are analyzed and include: 1) corn stems and grain at each sampling station in fields L1 and M1; 2) switchgrass, an aggregate of additional species, and surface litter, combined across stations, in fields L2 and M3; and 3) separate analysis of the top 3 species by weight, an aggregate of the remaining species, and surface litter, combined across stations, in fields L3, M2, and M4. Subsamples from soybean harvest in 2009 and occasional post-harvest residue collections are also included.

This datatable is part of the GLBRC Scale-up Experiment Cropping Systems dataset.

This dataset contains data on plant communities in fields at Lux Arbor Reserve (L1-L3) and Marshall Farm (M1-M4) planted to corn (L1, M1), switchgrass (L2, M3), and restored prairie (L3, M2) in 2010 after a 2009 no-till soybean crop in all fields to convert tilled corn-soybean-wheat rotations (AGR) at Lux Arbor and fields in the Conservation Reserve Program (CRP) at Marshall Farm to no-till bioenergy crops. One field at Marshall Farm (M4) remains as CRP brome grass to serve as a reference. Each field has 10 sampling stations (S1-S10) around which most sampling occurs.

Note

Experiment: GLBRC Scale-up Experiment
Data available from: March 2009 to December 2019
Dataset: GLBRC141
Datatable ID: GLBRC091-006.64
Core Areas Primary Production
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Last Updated 2023-10-24
Variate Description Units
campaign sampling intent
sample date date of sampling
treatment experimental treatment
treatment name name of the treatment
replicate replicate nested in treatment
station sampling location
species species name of the sample
fraction plant fraction of the sample
nitrogen percentage nitrogen percentage in sample %
carbon pertentage carbon percentage in sample %
comment

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Data Excerpt

campaign sample_date treatment treatment_name replicate station species fraction n_percentage c_percentage comment fraction
Harvest 2009-10-19 L1 AGR-Corn R1 S1 Glycine max L. stover 0.732 44.021 soybean planted for the baseline year stover
Harvest 2009-10-19 L1 AGR-Corn R1 S10 Glycine max L. grain 6.424 51.686 soybean planted for the baseline year grain
Harvest 2009-10-19 L1 AGR-Corn R1 S10 Glycine max L. stover 1.441 43.324 soybean planted for the baseline year stover
Harvest 2009-10-19 L1 AGR-Corn R1 S2 Glycine max L. stover 0.911 43.725 soybean planted for the baseline year stover
Harvest 2009-10-19 L1 AGR-Corn R1 S1 Glycine max L. grain 6.07 51.076 soybean planted for the baseline year grain
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