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Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director Full terms of use

Plant biomass measured in response to long-term nitrogen fertilization and disturbance. Biomass was sorted to species until 2014 and periodically after that. In years where the biomass was not sorted it is reported as “unsorted”

This datatable is part of the Plant Community and Ecosystem Responses to Long-term Fertilization & Disturbance dataset. This work is part of the long-term sampling and monitoring of successional dynamics in abandoned fields – and responses to N-fertilization. Data from this research has been, and will continue to, contribute to LTER cross-site analysis of plant community dynamics, diversity-productivity, and responses to fertilization and disturbance.

N-fertilized and tilled (disturbed) microplots are located in the NW corner of all treatment 7 (early successional communities) on the LTER main site.

 Experimental treatments are:
1) Nitrogen addition vs. no nitrogen addition and 2) Annual disturbance vs. undisturbed

Note

Experiment: Main Cropping System Experiment (MCSE)
Data available from: July 1989 to September 2017
Dataset: KBS055
Datatable ID: KBS055-001.27
Core Areas Primary Production,Populations,Inorganic Nutrients,Disturbance
Repository link: http://doi.org/10.6073/pasta/16f1a4e8d31297af7713e6cb3d70311b
Related Tables:
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Last Updated 2020-07-02
Variate Description Units
sample date date of sampling
species species observed
treatment LTER treatment identifier
replicate replicate
disturbed has the plot been tilled annually (true or false)
fertilized has nitrogen fertilizer been applied to the plot (true or false)
biomass g dry biomass measured per square meter g/m2
area sampled area that was sampled squaremeter

Data Excerpt

sample_date species treatment replicate disturbed fertilized biomass_g area_sampled
2017-09-06 UnSorted 7 R1 disturbed unfertilized 263.4 1.0
2017-09-06 UnSorted 7 R1 disturbed fertilized 623.2 1.0
2017-09-06 UnSorted 7 R2 disturbed unfertilized 382.0 1.0
2017-09-06 UnSorted 7 R2 disturbed fertilized 850.2 1.0
2017-09-06 UnSorted 7 R3 disturbed unfertilized 289.3 1.0
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