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).
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:||April 1996 to October 2011|
|Core Areas||Inorganic Nutrients,Disturbance|
|sample date||collection date of the sample|
|Year||year the sample is assigned to|
|treatment||Main Site treatment that the microplot is located in|
|replicate||Main Site replicate that microplot is located in|
|plot id||plot ID that the sample was collected from|
|disturbed||indicates whether the plot is tilled (true) or not (false)|
|fertilized||indicates whether the plot is fertilized (true) or not (false)|
|moisture percent||soil moisture of the sample in percent (w/w)||%|
|nh4 n ug g||ammonium N content of the sample (micro grams NH4-N per gram of soil)||μg/g|
|no3 n ug g||nitrate N content of the sample (micro grams NO3-N per gram of soil)||μg/g|