Soil Inorganic Nitrogen — Main Cropping System Experiment (MCSE)

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Surface (0 to 25 cm) inorganic nitrogen concentrations of nitrate-N and ammonium-N for soils collected from the Main Cropping System Experiment organized by treatment and plot.

This datatable is part of the Soil Inorganic Nitrogen on the Main Cropping System Experiment dataset. Measurement of soil inorganic nitrogen began in 1989 for all treatments on the LTER Main Site and 1993 on the Successional and Forest sites. Ammonium and nitrate are analyzed twice monthly or monthly during the growing season on baseline soil samplings. Additional datasets from the Baseline Soil Samplings include soil moisture, total N and total C.

Note

Experiment: Main Cropping System Experiment (MCSE)
Data available from: January 1989 to January 2021
Dataset: KBS021
Datatable ID: KBS021-002.84
Core Areas Inorganic Nutrients,Disturbance
Repository link: http://doi.org/10.6073/pasta/ad375cd7fa90c175ab71430a363fd72e
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Last Updated 2022-09-14
Variate Description Units
Year year in which the date occurs
Campaign sampling effort with which the data is associated
Date date of soil sampling
Treatment main LTER treatment
Replicate replicate block
station station id if the samples were not composited
sub plot The treatment sub_plot. The prairie strips (ST) in T3 and T4
dry soil g dry soil weight used in the extraction gram
solution ml ml of KCL solution ml
no3 ppm measured NO3-N concentration in solution (ppm) mg/L
nh4 ppm measured NH4-N concentration in solution (ppm) mg/L
Nitrate soil extractable nitrate plus nitrite, as N (average of analytical replicates, screened for outliers and corrected for soil moisture) μg/g
Ammonium soil extractable ammonium, as N (average of analytical replicates, screened for outliers and corrected for soil moisture) μg/g
top depth cm top depth of the soil sample as measured from the soil surface centimeter
bottom depth cm bottom depth of the soil sample as measured from the soil surface centimeter

Data Excerpt

year campaign date treatment replicate station sub_plot dry_soil_g solution_ml no3_ppm nh4_ppm nitrate ammonium top_depth_cm bottom_depth_cm
2021 Soil Inorganic N 2021-11-30 T1 R1 8.41 101.59 0.23 0.21 2.74 2.48 0 25
2021 Soil Inorganic N 2021-11-30 T1 R2 8.46 101.54 0.28 0.3 3.35 3.57 0 25
2021 Soil Inorganic N 2021-11-30 T1 R3 8.28 101.72 0.64 0.66 7.9 8.07 0 25
2021 Soil Inorganic N 2021-11-30 T1 R4 8.47 101.53 0.3 0.22 3.6 2.62 0 25
2021 Soil Inorganic N 2021-11-30 T1 R5 8.45 101.55 0.24 0.2 2.87 2.37 0 25
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