Annual Crops and Alfalfa Biomass — 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Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director Full terms of use

Biomass clipped at ground level for LTER Main Site treatments 1-4 and 6. Weeds encountered during the crop harvest are reported in

This datatable is part of the Annual Net Primary Production on the Main Cropping System Experiment dataset. Aboveground annual net primary production (ANPP) has been measured on the LTER main site since 1990 and on the successional and forested sites since 1993. ANPP is measured at peak biomass for a given treatment. In some systems with multiple harvests or complex communities that have peaks occurring at different times of the year, measurements are taken at multiple times per year. Additional ANPP measurements are made where appropriate using leaf litter traps, estimates of diameter from tree basal diameter and for the poplar treatment occasional destructive harvests. See the ANPP protocol for descriptions of the sampling and measurement methods for each of the treatments.


Experiment: Main Cropping System Experiment (MCSE)
Data available from: January 1990 to October 2021
Dataset: KBS019
Datatable ID: KBS019-003.107
Core Areas Primary Production,Disturbance
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Last Updated 2022-06-02
Variate Description Units
Year year of the growing season relevant for the sample
Campaign a major multi-year research activity with a discreet purpose
Date date on which sampling occured
Treatment main experimental treatment
Replicate replicate block, nested within treatment
Station replicate station, nested within block
Species crop species collected
Fraction a specified component of total plant (or sample) biomass

Data Excerpt

year campaign date treatment replicate station species fraction biomass
2021 Harvest 2021-10-13 T4 R6 S2 Glycine max L. (*) SEED 222.23000000000002
2021 Harvest 2021-10-13 T4 R6 S2 Glycine max L. (*) WHOLE 415.19
2021 Harvest 2021-10-13 T4 R6 S1 Glycine max L. (*) SEED 255.75000000000003
2021 Harvest 2021-10-13 T4 R6 S1 Glycine max L. (*) WHOLE 528.3100000000001
2021 Harvest 2021-10-13 T4 R6 S3 Glycine max L. (*) SEED 152.15
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