GLBRC Sustainability Data Catalog

Stand Counts of Perennial Crops — GLBRC Marginal Land 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Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director Full terms of use

Stand counts of perennial crops are occasionally conducted to monitor growth and recruitment at GLBRC Marginal Land Experiment sites.

This datatable is part of the Cropping Systems – Marginal Land Experiment dataset. This dataset contains data on the biofuel cropping systems of the GLBRC Marginal Land Experiment (MLE) originally established in 2013 at north, central and south sites in Wisconsin and Michigan. The experiment consists of six different biofuel cropping systems (a.k.a. treatments; G5-G10; including switchgrass, miscanthus, native grasses, hybrid poplar, early successional, and restored prairie) plus an historical vegetation control (G11), replicated in each of 4 blocks (R1-R4) at each site. Split-plot treatments were initiated in 2014-2016 to examine the effect of nitrogen fertilization [plus_n (+N) vs control (0N)] on all cropping systems.

Seasonal deployment of rainfall exclusion (rainout) shelters in the fertilized split plot of the switchgrass (G5) treatment began in 2018 to examine the effects of drought on plant growth. See the Marginal Land Rainfall Exclusion Experiment for these data.

Note that Block 1 at the Wisconsin Central – Hancock site was retired in 2015 and the entire Wisconsin South – Oregon site was retired after 2018 growing season when the maintenance, harvest, sampling and analysis of the remaining Wisconsin sites was transferred from UW staff to MSU staff.

Note

Experiment: GLBRC Marginal Land Experiment
Data available from: May 2017 to June 2019
Dataset: GLBRC126
Datatable ID: GLBRC094-014.97
Core Areas Primary Production
Repository link:
Related Tables:
Personnel:
Last Updated 2023-01-13
Variate Description Units
sample date sampling date
experiment
treatment experimental treatment
site sampling site
replicate experiment replicate
field section field section of plot
n treatment nitrogen treatment (with vs. without nitrogen fertilization)
average stand count average stand count squaremeter

Data Excerpt

sample_date experiment treatment site replicate field_section n_treatment average_stand_count_m2
2017-05-08 GLBRC Marginal Land Experiment G5 Michigan South - Lux Arbor Reserve R1 east control 22.0
2017-05-08 GLBRC Marginal Land Experiment G5 Michigan South - Lux Arbor Reserve R1 west plus_n 16.0
2017-05-08 GLBRC Marginal Land Experiment G5 Michigan South - Lux Arbor Reserve R2 east plus_n 37.6
2017-05-08 GLBRC Marginal Land Experiment G5 Michigan South - Lux Arbor Reserve R2 west control 40.0
2017-05-08 GLBRC Marginal Land Experiment G5 Michigan South - Lux Arbor Reserve R3 east control 34.8
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