Early Successional Microplot ANPP

Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director Full terms of use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 table is drawn from https://lter.kbs.msu.edu/datatables/154 and https://lter.kbs.msu.edu/datatables/685 by excluding surface litter and summing the biomass.

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 2019
Dataset: KBS055
Datatable ID: KBS055-004.49
Core Areas Primary Production,Disturbance
Repository link: http://doi.org/10.6073/pasta/16f1a4e8d31297af7713e6cb3d70311b
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Last Updated 2021-11-16
Variate Description Units
sample date the date the plot was sampled
treatment the field treatment that was sampled
replicate the field replicate that was sampled
method the sample method used. 'sorted to species' means that an attempt was made to sort the biomass to species and any remaining biomass was classified as unsorted. 'not_ sorted' indicates that no attempt was made to sort the biomass to species and all of the biomass was classified as unsorted.
disturbed was the microplot tilled?
fertilized was the microplot fertilized?
biomass g m2 the dry weight of the biomass in grams/meter squared g/m2
area sampled the area that was harvested for the sample in square meters squaremeter

Data Excerpt

sample_date treatment replicate method disturbed fertilized biomass_g_m2 area_sampled
2019-09-16 T7 R1 not_sorted disturbed fertilized 636.2 1.0
2019-09-16 T7 R1 not_sorted disturbed unfertilized 285.71 1.0
2019-09-16 T7 R2 not_sorted disturbed fertilized 734.72 1.0
2019-09-16 T7 R2 not_sorted disturbed unfertilized 407.06 1.0
2019-09-16 T7 R3 not_sorted disturbed unfertilized 265.64 1.0
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