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
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)|
|top depth cm||the top of the sample column with 0 cm as the soil surface||centimeter|
|bottom depth cm||the bottom of the soil column collected with 0 cm as the soil surface||centimeter|
|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|