Top Non-crop species by Biomass

Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director Full terms of use

This datatable is derived from KBS019-004 it includes the average species proportion and the treatment species proportion. The treatment species proportion is calculated by diving the total biomass of the species for the whole treatment by the total biomass for that treatment.

This table excludes standing dead biomass (which is part of the current year’s biomass) and surface litter (which may not be part of the current year’s biomas).

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 January 2012
Dataset: KBS019
Datatable ID: KBS019-019.97
Repository link:
Related Tables:
Last Updated 2017-10-24
Variate Description Units
Year The sample year
Treatment main experimental treatment
Species The species observed
Proportion The proportion of this species by biomass in the treatment g/g

Data Excerpt

year treatment species proportion
2018 T1 Digitaria sanguinalis (L.) Scop. 1.0
2018 T3 Ambrosia artemisiifolia L. 0.171469740634006
2018 T3 Chenopodium album L. 0.730547550432277
2018 T3 Poa annua L. 0.0979827089337176
2018 T4 Ambrosia artemisiifolia L. 0.545313762456235
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