GLBRC Sustainability Data Catalog

Fine Root Production of Perennial Crops by Ingrowth Cores — 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Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director Full terms of use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 of BCSE perennial treatments (G5-G10) estimated by the ingrowth core method. Two ingrowth cores were buried in the soil at the beginning of the growing season at each sampling station (S1-S3); one was collected mid-season and the other at the end of the season to determine an approximate peak standing root biomass or belowground net primary production (BNPP).

This datatable is part of the Roots of the Biofuel Cropping System Experiment dataset.

Different sampling methods are used to measure root production in the diverse cropping systems of the GLBRC Biofuel Cropping System Experiment (BCSE). For annual crop treatments (G1-G4), root biomass is sampled by excavating a single plant (KBS) or a known soil area (Arlington). For perennial crop treatments (G5-G10), root biomass is sampled from ~1 m deep cores and fine root production is estimated from ingrowth cores buried at the beginning of the growing season. In general, root sampling occurs around three sampling stations (S1-S3) in each replicate block (R1-R5) and at peak biomass, which means physiological maturity for annuals and pre-senescence for perennials. Roots may be analyzed for total carbon and nitrogen content.

Note

Experiment: GLBRC Biofuel Cropping System Experiment
Data available from: January 2008 to January 2013
Dataset: GLBRC089
Datatable ID: GLBRC089-002.79
Core Areas Primary Production
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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
comments notes about the data row

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Data Excerpt

year date_installed sample_date site treatment replicate station depth_bottom core_area species biomass_g_m2 campaign wi_plot_id comments
2008 2008-08-14 2008-08-14 Arlington GLBRC Intensive Site G9 R1 S1 15.0 19.63 successional vegetation 229.18 mid-season 106 soil core assay of fine root biomass
2008 2008-08-14 2008-08-14 Arlington GLBRC Intensive Site G9 R2 S1 15.0 19.63 successional vegetation 96.77 mid-season 210 soil core assay of fine root biomass
2008 2008-08-14 2008-08-14 Arlington GLBRC Intensive Site G9 R3 S1 15.0 19.63 successional vegetation 208.81 mid-season 312 soil core assay of fine root biomass
2008 2008-08-25 2008-08-25 Arlington GLBRC Intensive Site G10 R1 S1 15.0 19.63 native prairie 45.84 mid-season 105 soil core assay of fine root biomass
2008 2008-08-25 2008-08-25 Arlington GLBRC Intensive Site G10 R2 S1 15.0 19.63 native prairie 779.22 mid-season 208 soil core assay of fine root biomass
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