Nematode Density of MCSE Baseline Study — Main Cropping System Experiment (MCSE)
Population counts, by feeding group, of nematodes in surface soils (0-15 cm) sampled in 1988 at an array of geo-referenced points across the LTER Main Site prior to establishment of the MCSE.
These data are summarized in the following publication:
Robertson, G. P. and D. W. Freckman. 1995. The spatial distribution of nematode trophic groups across a cultivated ecosystem. Ecology 76:1425-1432. https://doi.org/10.2307/1938145
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:
- geomorphology (elevation, soil bulk density and texture);
- soil chemistry (moisture, pH, inorganic N, total C and N);
- soil biology (microbial biomass C, respiration, and population size; N mineralization potentials; nematode counts by feeding type; seed bank);
- 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. https://doi.org/10.1890/1051-0761(1997)007[0158:SRMAAP]2.0.CO;2
|Experiment:||Main Cropping System Experiment (MCSE)|
|Data available from:||January 1988|
|year||year of the observation|
|easting||easting of the sample location in UTM 16N|
|northing||northing of the sample location in UTM 16N|
|fungivorus nematodes m2||number of fungivorus nematodes per square meter|
|bacteriovorus nematodes m2||number of bacteriovorus nematodes per square meter|
|omnivorus predacious nematodes m2||number of omnivorous/predaceous nematodes per square meter|
|plant parasitic nematodes m2||number of plant parasitic nematodes per square meter|
|total nematodes m2||number of total nematodes per square meter|