Annual Crops and Alfalfa/Switchgrass Biomass — Main Cropping System Experiment (MCSE)

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Aboveground biomass of MCSE annual crops (corn-soybean-wheat; T1-T4) and alfalfa/switchgrass (T6) clipped at ground level. Annual crops are sampled just before harvest near peak biomass and are threshed after drying to separate seed from stover. Alfalfa (1990-2017) was replaced by switchgrass in 2019 after a fallow year (2018). Alfalfa was sampled before crop harvest(s); switchgrass is sampled at peak biomass. See Related Tables for biomass of non-crop species in samples.

This datatable is part of the Primary Production of Herbaceous Systems of the Main Cropping System Experiment dataset.

This dataset contains the biomass data of herbaceous systems of the Main Cropping System Experiment (MCSE), including Treatments 1-4 and 6-8 at the LTER Main Site (since 1990) and the Mid-successional (TSF) site (since 1993). Included are the data collected at or near peak biomass to estimate aboveground net primary production (ANPP). Systems with multiple harvests or with peaks occurring at different times throughout the growing season may have multiple measurements per year. See the ANPP protocol for sampling and measurement methods of these treatments.

Note

Experiment: Main Cropping System Experiment (MCSE)
Data available from: January 1990 to October 2021
Dataset: KBS019
Datatable ID: KBS019-003.140
Core Areas Primary Production,Disturbance
Repository link: http://doi.org/10.6073/pasta/f9b2a038b8a7ad43a252587a84935f30
Related Tables:
Personnel:
Last Updated 2024-02-06
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
Biomass g/m2

Data Excerpt

year campaign date treatment replicate station species fraction biomass
2022 Peak Biomass 2022-09-22 T6 R4 S4 Panicum virgatum L. WHOLE 1154.2
2022 Peak Biomass 2022-09-22 T6 R4 S3 Panicum virgatum L. WHOLE 1303.0700000000002
2022 Peak Biomass 2022-09-22 T6 R5 S5 Panicum virgatum L. WHOLE 1281.19
2022 Peak Biomass 2022-09-22 T6 R5 S4 Panicum virgatum L. WHOLE 1302.04
2022 Peak Biomass 2022-09-22 T6 R5 S1 Panicum virgatum L. WHOLE 1291.73
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