Soil Total Carbon and Nitrogen by Depth - Deep Cores — Main Cropping System Experiment (MCSE)
Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director Full terms of use
Total carbon and nitrogen determinations of deep core soil samples from the LTER Main Site and Successional and Forested sites organized by treatment, replicate and core depth (surface, middle, deep) sections.
Citation (in review):
Córdova, S. C., Kravchenko, A. N., Miesel, J.R., Robertson, G.P., (2022). Whole-profile Changes in Soil Carbon and Nitrogen after 25 Years under Agricultural and Conservation Management
This datatable is part of the Soil Carbon and Nitrogen Deep Core Surveys dataset.
An LTER project goal is to periodically collect and analyze deep soil cores for the main site treatments and successional and forest sites. Soil is sampled to a depth of one meter, and analyzed for horizon depths, texture, moisture, and carbon and nitrogen content.
Note
Experiment: | Main Cropping System Experiment (MCSE) |
Data available from: | May 2001 to September 2013 |
Dataset: | KBS044 |
Datatable ID: | KBS044-001.69 |
Core Areas | Organic Matter,Disturbance |
Repository link: | http://doi.org/10.6073/pasta/8c9f759d32699902d88c7b5d607fb2f7 |
Related Tables: | |
Personnel: |
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Last Updated | 2024-01-16 |
Variate | Description | Units |
---|---|---|
sample date | date the sample was taken | |
treatment | treatment the sample was collected from | |
replicate | replicate that the sample was collected from | |
station | station within the plot that was sampled | |
core | there were 2 cores taken at each sample site. in 2001 core 1 was analyzed and core 2 was archived. | |
section | slice of the deepcore | |
section length | length of the section | cm |
top depth | top depth of the core section in centimeters from the surface | cm |
bottom depth | bottom depth of the core in centimeters from the surface | cm |
core volume cm3 | the volume of the core section | cm^3 |
gravel free bulk density | bulk density of the core section excluding gravel | |
total bulk density | total bulk density of the core section including the gravel. | |
n percent | average percent N in the sample | % |
c percent | average percent of C in the sample | % |
flag | outlier flag 'O' | |
comment | comment about the sample |
Protocols |
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Soil Total Carbon and Nitrogen |
Soil Bulk Density - Deep Cores |
Carlo Erba NA1500 SeriesII Combustion Analyzer |
Costech Elemental Combustion System CHNS-O (ECS 4010) |
Data Excerpt
sample_date | treatment | replicate | station | core | section | section_length | top_depth | bottom_depth | core_volume_cm3 | gravel_free_bulk_density | total_bulk_density | n_percent | c_percent | flag | comment |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2001-10-19 | TSF | R1 | S1 | C1 | Deep | 0.02 | 0.2165 | ||||||||
2001-10-19 | TSF | R1 | S1 | C1 | Middle | 0.0545 | 0.3165 | ||||||||
2001-10-19 | TSF | R1 | S1 | C1 | Surface | 0.196 | 1.9323 | ||||||||
2001-10-19 | TSF | R1 | S2 | C1 | Deep | 0.035 | 0.111 | ||||||||
2001-10-19 | TSF | R1 | S2 | C1 | Middle | 0.055 | 0.3037 |