Soil Microbial Biomass and Respiration of MCSE Baseline Study — Main Cropping System Experiment (MCSE)
Biomass C, respiration and population counts of soil microbial communities 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.
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|
|Core Areas||Populations,Organic Matter,Disturbance|
|year||year that the observation was made|
|easting||easting of the sample location in UTM 16N|
|northing||northing of the sample location in UTM 16N|
|organisms g||number of microbes per gram of soil|
|microbial respiration||microbial respiration in ng C/gram/day|
|microbial biomass||microbial biomass in ug C/g soil||μg/g|
|organisms m2||number of microbes on areal basis in number per square meter|
|microbial respiration m2||microbial respiration on areal basis in mg C per square meter per day||mg/m2/day|
|microbial biomass m2||microbial biomass on areal basis in mg C per square meter|