Nitrogen Mineralization — GLBRC Biofuel Cropping System 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Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director Full terms of use
During 2013, nitrogen mineralization and nitrification rates were measured at the GLBRC Intensive sites. Each main plot and microplot was measured 3 times (early growing season, mid-growing season, and post-harvest) using 28-day lab incubations at constant soil moisture and temperature. This table contains the change in soil nitrate (plus nitrite) and ammonium over the incubation period, which is used to calculate potential mineralization and nitrification rates.
This datatable is part of the GLBRC soil properties dataset. Soil measurements from GLBRC experiments.
Note
| Experiment: | GLBRC Biofuel Cropping System Experiment |
| Data available from: | May 2013 to November 2013 |
| Dataset: | GLBRC088 |
| Datatable ID: | GLBRC088-019.154 |
| Repository link: | |
| Related Tables: |
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| Personnel: |
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| Last Updated | 2023-05-16 |
| Variate | Description | Units |
|---|---|---|
| sample collection date | date the soil was collected from the field | |
| initial incubation date | first date of the incubation | |
| final incubation date | last day of the incubation | |
| site | site location | |
| treatment | experimental treatment | |
| replicate | replicate nested within treatment | |
| main or microplot | sample was collected from the main section of field or section of field where micro plot activity occurs | |
| depth | the depth to which the soil was sampled | centimeter |
| soil moisture | percent gravimetric moisture on a dry weight basis | % |
| adjusted soil moisture | the moisture at which the assay was run. | % |
| no3 initial | the NO3-N amount at the beginning of the incubation | μg/g |
| nh4 initial | the NH4-N amount at the beginning of the incubation | μg/g |
| no3 final | the NO3-N amount at the end of the incubation. | μg/g |
| nh4 final | the NH4-N amount at the end of the incubation | μg/g |
| days | the number of days of the incubation | number |
| net nitrification | net nitrification per day | micrograms/gram/day |
| net mineralization | net mineralization (final n - initial n)/days | micrograms/gram/day |
GLBRC data is not yet publicly available.
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| sample_collection_date | initial_incubation_date | final_incubation_date | site | treatment | replicate | main_or_microplot | depth | soil_moisture | adjusted_soil_moisture | no3_initial | nh4_initial | no3_final | nh4_final | days | net_nitrification | net_mineralization |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2013-04-29 | 2013-05-02 | 2013-05-30 | KBS GLBRC Intensive Site | G1 | R1 | main | 25.0 | 14.7 | 18.75 | 2.078 | 1.401 | 9.318 | 0.716 | 28 | 0.259 | 0.234 |
| 2013-04-29 | 2013-05-02 | 2013-05-30 | KBS GLBRC Intensive Site | G1 | R1 | mp | 25.0 | 15.47 | 18.75 | 1.904 | 1.663 | 6.476 | 0.895 | 28 | 0.163 | 0.136 |
| 2013-04-29 | 2013-05-02 | 2013-05-30 | KBS GLBRC Intensive Site | G1 | R2 | main | 25.0 | 15.62 | 18.75 | 2.569 | 2.636 | 7.604 | 0.412 | 28 | 0.18 | 0.1 |
| 2013-04-29 | 2013-05-02 | 2013-05-30 | KBS GLBRC Intensive Site | G1 | R2 | mp | 25.0 | 14.97 | 18.75 | 1.686 | 0.851 | 4.382 | 0.665 | 28 | 0.096 | 0.09 |
| 2013-04-29 | 2013-05-02 | 2013-05-30 | KBS GLBRC Intensive Site | G1 | R3 | main | 25.0 | 15.99 | 18.75 | 1.892 | 1.314 | 6.163 | 0.629 | 28 | 0.153 | 0.128 |