GLBRC Sustainability Data Catalog

Fine Root Productivity (BNPP) and Carbon and Nitrogen - Perennial Crops (G5-G10)

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 and Arlington (repeats data in this table) at: http://data.sustainability.glbrc.org/datatables/302

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: May 2009 to April 2013
Dataset: GLBRC089
Datatable ID: GLBRC089-006.31
Related Tables:
Personnel:
Last Updated 2017-01-26
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
core area area of the root core tube squarecentimeters
plants crop plants
depth bottom Lower depth of the root core. Upper core area is at surface. centimeter
biomass g m2 root biomass to given depth g/m2
wi plot id plot identifier used only by Arlington site
campaign distinct research activity
comment notes about the data row
percent nitrogen root nitrogen as percent %
percent carbon root carbon as percent %
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
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

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Data Excerpt

year date_installed sample_date site treatment replicate station core_area plants depth_bottom biomass_g_m2 wi_plot_id campaign comments percent_nitrogen percent_carbon n_g_m2 c_g_m2
2008 2008-08-25 2008-08-25 Arlington GLBRC Intensive Site G10 R1 S1 19.63 native prairie 15 45.84 105 mid-season soil core assay of fine root biomass
2008 2008-08-25 2008-08-25 Arlington GLBRC Intensive Site G10 R2 S1 19.63 native prairie 15 779.22 208 mid-season soil core assay of fine root biomass
2008 2008-08-25 2008-08-25 Arlington GLBRC Intensive Site G10 R3 S1 19.63 native prairie 15 81.49 306 mid-season soil core assay of fine root biomass
2008 2008-08-25 2008-08-25 Arlington GLBRC Intensive Site G5 R1 S1 19.63 Panicum virgatum L. 15 183.35 112 mid-season soil core assay of fine root biomass
2008 2008-08-25 2008-08-25 Arlington GLBRC Intensive Site G5 R2 S1 19.63 Panicum virgatum L. 15 173.16 206 mid-season soil core assay of fine root biomass
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