Soil Bulk Density — Resource Gradient 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Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director Full terms of use

Bulk density of surface soils (0-25 cm) collected in fall 2016 from treatments F1, F5, and F8 under both rainfed and irrigated conditions and divided into 0-10 and 10-25 cm intervals. For 2007 samples, core dimensions were 14 cm height x 7.9 cm diameter.

This datatable is part of the Resource Gradient Experiment dataset. This dataset contains the agronomic yields and soil properties of the LTER Resource Gradient Experiment, which applies nine different rates of nitrogen fertilization (F1-F9) to annual row crops under rainfed (since 1999) and irrigated (since 2003) conditions. Since 2006, row crops have followed the same rotation as the LTER Main Cropping System Experiment (MCSE; corn-soybean-wheat); continuous corn was grown from 1999-2005. Nitrogen fertilization rates differ by crop (since 2008) and are given on the plot map.

The experiment moved to its current location in the LTER Main Site in 2005; previous experimental designs and locations are given here


Experiment: Resource Gradient Experiment
Data available from: August 2007 to November 2016
Dataset: KBS033
Datatable ID: KBS033-008.113
Core Areas Disturbance
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Last Updated 2023-11-27
Variate Description Units
sample date date the sample was taken
treatment the treatment sampled
replicate the replicate sampled
plot the plot sampled
core The core number
top depth cm top of the depth of the sample (cm) cm
bottom depth cm bottom depth of the sample (cm) cm
gravel free bulk density bulk density of the gravel free soil fraction (gravel >4 mm removed)
total bulkt density g cm3 total bulk density (including any gravel)
moisture soil moisture at sampling (dry weight basis) g/g
gravel weight

Data Excerpt

sample_date treatment replicate plot core top_depth_cm bottom_depth_cm gravel_free_bulk_density_g_cm3 total_bulk_density_g_cm3 moisture gravel_weight
2016-11-01 F1 R2 203 3 10.0 25.0 1.36 1.4 0.19 11.470002
2016-11-01 F1 R2 203 3 0.0 10.0 1.38 1.41 0.18 5.280001
2016-11-01 F1 R2 203 2 10.0 25.0 1.25 1.29 0.19 14.539976
2016-11-01 F1 R2 203 2 0.0 10.0 1.4 1.43 0.19 6.299992
2016-11-01 F1 R2 203 1 10.0 25.0 1.24 1.32 0.17 24.349976
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