KBS055:Plant Community and Ecosystem Responses to Long-term Fertilization & Disturbance

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

Tables

KBS055-001 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.

KBS055-002 Soil Inorganic Nitrogen - Early Successional Microplots

Inorganic nitrogen concentrations of ammonia and nitrate in soils of the fertilization and disturbance microplots on the LTER Early Successional treatment (T7).

5 soil cores (0-10 cm, diam=1.9 cm) were collected on the SW-NE diagonal in the center of the 3×3m plot

KBS055-003 Early Successional Microplot Biomass (Bulk samples)

Plant biomass measured in response to long-term nitrogen fertilization and disturbance.
Bulk biomass samples and surface litter was collected. In some years the spring burn did not leave any surface litter.

KBS055-004 Early Successional Microplot ANPP

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.

Protocols

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