Early Successional Microplot Biomass (Sorted to species)

Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director Full terms of use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, The remaining biomass that was not identifiable was classified as un-sorted.

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 2014
Dataset: KBS055
Datatable ID: KBS055-001.49
Core Areas Primary Production,Populations,Inorganic Nutrients,Disturbance
Repository link: http://doi.org/10.6073/pasta/16f1a4e8d31297af7713e6cb3d70311b
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Last Updated 2021-11-16
Variate Description Units
sample date date of sampling
species species observed
treatment LTER treatment identifier
replicate replicate
method the sampling protocol used. "sorted to species" means that the samples were sorted to species and any remaining material is classified as unsorted. "not_sorted" means that no attempt was made to sort and the material is just classified as unsorted.
disturbed has the plot been tilled annually (true or false)
fertilized has nitrogen fertilizer been applied to the plot (true or false)
biomass g m2 dry biomass measured per square meter g/m2
area sampled area that was sampled squaremeter

Data Excerpt

sample_date species treatment replicate method disturbed fertilized biomass_g_m2 area_sampled
2014-09-03 Cyperus esculentus L. T7 R1 sorted_to_species disturbed unfertilized 66.21 1.0
2014-09-03 Ambrosia artemisiifolia L. T7 R1 sorted_to_species disturbed unfertilized 71.93 1.0
2014-09-03 Digitaria sanguinalis (L.) Scop. T7 R1 sorted_to_species disturbed unfertilized 80.34 1.0
2014-09-03 Setaria faberi Herrm. T7 R1 sorted_to_species disturbed unfertilized 84.98 1.0
2014-09-03 Panicum dichotomiflorum Michx. T7 R1 sorted_to_species disturbed unfertilized 24.04 1.0
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