HOME > DATATABLES > GLBRC BIOFUEL CROPPING SYSTEM EXPERIMENT > FINE ROOT PRODUCTIVITY (BNPP) AND CARBON AND NITROGEN - PERENNIAL CROPS (G5-G10)

Fine Root Productivity (BNPP) and Carbon and Nitrogen - Perennial Crops (G5-G10) — 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Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director Full terms of use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 estimated using root in-growth cores. To determine an approximate peak standing crop, two root in-growth cores were installed at the beginning of the growing season at each sampling location; one of them was collected mid-season and the other was collected at the end of the season. BNPP (fine root biomass to given depth) was measured as well as carbon and nitrogen. Calculated grams of carbon and nitrogen in fine roots by area is also given.

KBS BNPP is averaged by station here because KBS CN data were grouped by station. BNPP data by station are available for KBS at: http://lter.kbs.msu.edu/datatables/306

This datatable is part of the GLBRC Roots dataset.

Below ground primary production for the GLBRC plots.

Note

Experiment: GLBRC Biofuel Cropping System Experiment
Data available from: January 2009 to January 2013
Dataset: KBS085
Datatable ID: KBS085-006.92
Repository link:
Related Tables:
Personnel:
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. cm
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
percent carbon root carbon as percent %
percent nitrogen root nitrogen as percent %
c g m2 percent carbon X BNPP in g/m2. KBS BNPP is averaged by station here. Arlington has CN data and BNPP for each station. g/m2
n g m2 Percent nitrogen X BNPP in g/m2. KBS BNPP is averaged by station here. Arlington has CN data and BNPP for each station. g/m2
comment notes about the data row

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Data Excerpt

year date_installed sample_date site treatment replicate station core_area plants depth_bottom average_biomass_g_m2 campaign comment percent_nitrogen percent_carbon n_g_m2 c_g_m2
2014 2014-04-20 2014-11-05 KBS GLBRC Intensive Site G5 R5 all stations 19.634954 Panicum virgatum L. 254.0709 end of season cores were combined before grinding for CN analysis 1.0655 38.5532 2.7071 97.9525
2014 2014-04-20 2014-11-05 KBS GLBRC Intensive Site G5 R4 all stations 19.634954 Panicum virgatum L. 138.24 end of season cores were combined before grinding for CN analysis 1.1065 34.7692 1.5296 48.0649
2014 2014-04-20 2014-11-05 KBS GLBRC Intensive Site G5 R3 all stations 19.634954 Panicum virgatum L. 214.6514 end of season cores were combined before grinding for CN analysis 1.149 40.3282 2.4663 86.565
2014 2014-04-20 2014-11-05 KBS GLBRC Intensive Site G5 R2 all stations 19.634954 Panicum virgatum L. 232.4768 end of season cores were combined before grinding for CN analysis 0.7493 32.8449 1.7419 76.3567
2014 2014-04-20 2014-11-05 KBS GLBRC Intensive Site G5 R1 all stations 19.634954 Panicum virgatum L. 245.7524 end of season cores were combined before grinding for CN analysis 0.9295 37.8148 2.2844 92.9308
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