GLBRC Sustainability Data Catalog

Poplar - Understory Biomass

Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director Full terms of use

Understory biomass sampled on the poplar treatments (G8) in the Biofuel Cropping System Experiment (BCSE) including cover crop and weed biomass. Cover crops were only sampled in 2008 and 2009 (KBS and Arlington). KBS poplar weed biomass was sampled in 2008-2009 and since 2012. Arlington poplar weed biomass was sampled in 2008-2011 and 2014 and was discontinued in 2015.

This datatable is part of the GLBRC Annual Net Primary Productivity dataset. This dataset contains the aboveground biomass data. Annual net primary production (ANPP) data is measured at peak biomass for a given treatment. Additional ANPP measurements are made where appropriate such as occasional destructive harvests for poplar. See the ANPP protocols for descriptions of the sampling and measurement methods for each of the treatments. Below ground net primary production (BNPP) are available for these same sites.


Experiment: GLBRC Biofuel Cropping System Experiment
Data available from: January 2008 to January 2017
Dataset: GLBRC082
Datatable ID: GLBRC082-005.117
Core Areas Primary Production
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Last Updated 2020-07-10
Variate Description Units
year growing season year
sample date harvest date
site location of biomass collection
treatment experimental treatment
replicate replicate nested within treatment
station sampling location
species biomass crop or weed
fraction portion of crop harvested
biomass dry mass of sampled matter g/m2
comments sample notes

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Data Excerpt

year sample_date site treatment replicate station species fraction biomass comments
2019 2019-06-06 KBS G8 R1 S2 UnSorted whole 114.24
2019 2019-06-06 KBS G8 R1 S3 UnSorted whole 47.25
2019 2019-04-23 KBS G8 R1 S3 Populus nigra × P. maximowiczii whole 32.86
2019 2019-04-23 KBS G8 R1 S2 Populus nigra × P. maximowiczii whole 371.61
2019 2019-09-18 KBS G8 R1 NS UnSorted whole 119.71
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