Early Successional Microplot Biomass (Sorted to species)
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
|Experiment:||Main Cropping System Experiment (MCSE)|
|Data available from:||July 1989 to September 2014|
|Core Areas||Primary Production,Populations,Inorganic Nutrients,Disturbance|
|sample date||date of sampling|
|treatment||LTER treatment identifier|
|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|
|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|