Soil organic carbon and nitrogen data across the Resource Gradient Experiment — Resource Gradient Experiment
Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director Full terms of use
Soil cores were collected in Nov 2016 from 12 plots, 3 cores per plot, and 3 CHN analysis reps per core. These data are the average across the 3 CHN reps. CV among CHN reps were all <0.1, most <0.05. Also provided: bulk density, 2016 crop yield, and soil texture.
This datatable is part of the Data for McGill et.al. 2018. The greenhouse gas cost of agricultural intensification with groundwater irrigation in a Midwest US row cropping system. dataset.
Data for Data for McGill et.al. 2018. The greenhouse gas cost of agricultural intensification with groundwater irrigation in a Midwest US row cropping system. https://doi.org/10.1111/gcb.14472
Note
Experiment: | Resource Gradient Experiment |
Dataset: | KBS125 |
Datatable ID: | KBS127-002.181 |
Repository link: | http://doi.org/10.6073/pasta/6ab26c6ead42552a1d4f0261e8dac9bc |
Related Tables: | |
Related Files: | |
Personnel: |
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Last Updated | 2023-10-24 |
Variate | Description | Units |
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plot | plot number | |
depth | core length in cm | cm |
core | core number | |
treatment | experimental treatment name | |
block | replicate plot | |
is irrigated | 't' the plot is irrigated 'f' if it is not | |
c percent | total carbon percent in the soil core | g/g |
n percent | total nitrogen percent in the soil core | g/g |
bulk density | soil bulk density | |
crop yield 2011 to 2016 | total crop yield from 2011 to 2016 | kg/ha |
crop yield 2016 | wheat yield in 2016 | kg/ha |
yield11 100 | 2011 yield divided by 100 to reduce the numerical instability for the fitting routine | |
yield16 100 | 2016 yield divided by 100 to reduce the numerical instability for the fitting routine | |
total carbon | calculated from bulk density and carbon percent | |
total nitrogen | calculated from bulk density and nitrogen percent | |
sand | sand percent | g/g |
silt | silt percent | g/g |
clay | clay percent | g/g |
Protocols |
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Data Excerpt
plot | depth | core | treatment | block | is_irrigated | c_percent | n_percent | bulk_density | crop_yield_2011_to_2016 | crop_yield_2016 | yield11_100 | yield16_100 | total_carbon | total_nitrogen | sand | silt | clay |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
203 | 0-10 | 1 | F1 | 2 | false | 0.8081 | 0.09633333 | 1.463 | 20830.0 | 3375.0 | 208.3 | 33.75 | 1.1822503 | 0.2114035 | 0.5 | 0.32 | 0.18 |
203 | 0-10 | 2 | F1 | 2 | false | 0.7488667 | 0.09063333 | 1.401 | 20830.0 | 3375.0 | 208.3 | 33.75 | 1.0491621 | 0.19046596 | 0.5 | 0.32 | 0.18 |
203 | 0-10 | 3 | F1 | 2 | false | 0.9317333 | 0.10983333 | 1.381 | 20830.0 | 3375.0 | 208.3 | 33.75 | 1.2867237 | 0.22751975 | 0.5 | 0.32 | 0.18 |
203 | 10-25 | 1 | F1 | 2 | false | 0.58806664 | 0.0753 | 1.237 | 20830.0 | 3375.0 | 208.3 | 33.75 | 0.72743845 | 0.13971914 | 0.5 | 0.32 | 0.18 |
203 | 10-25 | 2 | F1 | 2 | false | 0.56116664 | 0.0762 | 1.245 | 20830.0 | 3375.0 | 208.3 | 33.75 | 0.6986525 | 0.1423035 | 0.5 | 0.32 | 0.18 |