Biomass Compilation for Herbaceous Systems — Main Cropping System Experiment (MCSE)

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This is a combination of the crop biomass, cover crop and non-crop biomass tables to provide a consolidated view of the annual biomass production in the herbaceous cropping systems.

For data from the non-crop biomass harvest the category “Surface Litter” has been removed for this table. The category ‘Standing Dead’ is included. “Standing Dead” (standing dead plants of indeterminate species) was first sampled in 1997. The standing dead designation is for plants that grew this year but had senesced and were unidentifiable at harvest. From 1999 to 2011 this category may also include plant scraps that were unidentified after the plants were sorted to species in the field lab.

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.

Note

Experiment:	Main Cropping System Experiment (MCSE)
Data available from:	January 1990 to December 2022
Dataset:	KBS019
Datatable ID:	KBS019-021.123
Core Areas	Primary Production,Populations,Disturbance
Repository link:	http://doi.org/10.6073/pasta/f9b2a038b8a7ad43a252587a84935f30
Related Tables:	Standardized codes for identifying plant species Annual Crops and Alfalfa Biomass Non-crop (Weed) Biomass Cover Crop Biomass Scope of Non-crop Biomass Non-Crop (Weed) Species Diversity Index Annual Crops Population Estimates Temporal Harvest Top Non-crop species by Biomass Post Frost Biomass Biomass data from Hess et al. 2020 Biomass and Species composition from the Prairie Strips Switchgrass stand count in T6 T7 plant species composition
Personnel:	Phil Robertson, lead investigator Dick Harwood, original investigator Stacey VanderWulp, principal contact
Last Updated	2023-10-24

Variate	Description	Units
Year	sample year
Campaign	sampling campaign
Date	date the sample was collected
Treatment	treatment of the sampled plot
Replicate	replicate of the sampled plot
Station	sampling station within the plot
Species	species collected
Fraction	plant fraction collected (WHOLE, SEED, VEG)
Biomass g	measured biomass in grams per meter squared	g/m²

Protocols
Plant Identification
MCSE: Aboveground Net Primary Productivity
Aboveground Net Primary Production - MCSE
Aboveground Net Primary Production - MCSE
Plant Identification

Download complete data table The standard data use policy applies to the this dataset

Data Excerpt

year	campaign	date	treatment	replicate	station	species	fraction	biomass_g
2022	Peak Biomass	2022-08-15	T7	R1	S1	Achillea millefolium L.	WHOLE	80.86
2022	Peak Biomass	2022-08-15	T7	R1	S1	Dactylis glomerata L.	WHOLE	77.59
2022	Peak Biomass	2022-08-15	T7	R1	S1	Erigeron annuus (L.) Pers.	WHOLE	4.56
2022	Peak Biomass	2022-08-15	T7	R1	S1	Euthamia graminifolia (L.) Nutt.	WHOLE	97.59
2022	Peak Biomass	2022-08-15	T7	R1	S1	Hieracium sp. (*)	WHOLE	2.4

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