Soil Bulk Density and Texture of MCSE Baseline Study — Main Cropping System Experiment (MCSE)

Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director Full terms of use

Soil bulk density and texture (percentage sand, silt and clay) of surface soils (0-15 cm) sampled in 1988 at an array of spatially referenced points across the LTER Main Site prior to the establishment of the MCSE. The designated MCSE treatment plot that includes the referenced point is also given.

This datatable is part of the Baseline Spatial Variability Study—Main Cropping System Experiment dataset.

This dataset contains the results of a spatial variability study conducted across the KBS LTER Main Site (48 ha) prior to establishment of the 1-ha treatment plots of the Main Cropping System Experiment (MCSE). During the 1988 growing season, the site was uniformly planted to a single variety of soybeans and a stratified unaligned sampling scheme was used to collect 400-600 geo-referenced samples across the site. Samples were analyzed for:

  1. geomorphology (elevation, soil bulk density and texture);
  2. soil chemistry (moisture, pH, inorganic N, total C and N);
  3. soil biology (microbial biomass C, respiration, and population size; N mineralization potentials; nematode counts by feeding type; seed bank);
  4. primary production (soybean biomass, soybean C and N).

Most soil samples (0-15 cm) were taken before crop emergence; plant biomass samples were taken at physiological maturity. Dried soil and plant samples were archived for potential future analysis.

Data in this dataset are summarized in the publication:
Robertson, G. P., K. M. Klingensmith, M. J. Klug, E. A. Paul, J. R. Crum, and B. G. Ellis. 1997. Soil resources, microbial activity, and primary production across an agricultural ecosystem. Ecological Applications 7:158-170.[0158:SRMAAP]2.0.CO;2


Experiment: Main Cropping System Experiment (MCSE)
Data available from: January 1988
Dataset: KBS003
Datatable ID: KBS003-001.83
Core Areas Inorganic Nutrients,Disturbance
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Last Updated 2023-10-24
Variate Description Units
year year of the observation
easting easting of sampling location in UTM 16N
northing northing of the sampling location in UTM 16N
bulk density gravel bulk density of gravel in mg/cm3
bulk density soil bulk density of soil in mg/cm3
sand percent sand %
silt percent silt %
clay percent clay %
plot the current plot

Data Excerpt

year easting northing bulk_density_gravel bulk_density_soil sand silt clay plot
1988 633981 4696121 0.021 1.5 49.7 35.7 14.6
1988 634280 4696128 0.036 1.48 51.7 33.7 14.6
1988 634081 4696127 0.025 1.31 41.7 41.7 16.6
1988 633913 4696126 0.011 1.06 31.7 47.7 20.6
1988 633914 4696128 0.014 1.08 31.7 49.7 18.6
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