Soil Dry-down experiment data — Research Context
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Soil Dryness Determination
Objective: Gravimetric soil moisture calculations are taken from the difference in the wet and dry weights of a given soil sample. The oven temperature used to achieve dry soil is important. Soil samples were dried at 50, 60 and 105 Celsius and reweighed daily to determine dryness.
Procedure:
- Collect soil samples to desired depth.
- Sieve soil through 4mm screen.
- Weigh fresh soil into tin containers. Record soil weight.
- Place open tins of soil into oven at 50C.
- After at least 24 hours, remove the tins from the oven and allow them to cool to room temperature. Record the weight of each sample. Replace samples into the oven. Continue to reweigh the tins daily until they are no longer losing moisture.
- Increase oven temperature to 60C and repeat step 5.
- Increase oven temperature to 105C and repeat step 5.
This datatable is part of the Soil Dry-down experiment dataset.
A test to evaluate the residual soil moisture at various oven temperatures
Note
| Experiment: | Research Context |
| Dataset: | KBS141 |
| Datatable ID: | KBS141_001.6 |
| Repository link: | |
| Personnel: |
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| Last Updated | 2023-10-24 |
| Variate | Description | Units |
|---|---|---|
| weigh date | The date the sample was weighed | |
| day | the number of days since the start of the experiment | |
| core | the core number | |
| depth | the depth interval of the sample taken | |
| sub sample | the sub_sample number | |
| tin number | the number of the weighing tin | |
| oven temperature c | the oven temperature | |
| soil weight g | the soil weight |
| Protocols |
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Data Excerpt
| weigh_date | day | core | depth | sub_sample | tin_number | oven_temperature_c | soil_weight_g |
|---|---|---|---|---|---|---|---|
| 2016-10-28 | 1 | 1 | 0-10cm | 1 | 61 | 28.14 | |
| 2016-10-28 | 1 | 1 | 0-10cm | 2 | 141 | 27.63 | |
| 2016-10-28 | 1 | 1 | 0-10cm | 3 | CC 127 | 25.7 | |
| 2016-10-28 | 1 | 1 | 10-25cm | 1 | 188 | 27.12 | |
| 2016-10-28 | 1 | 1 | 10-25cm | 2 | 139 | 25.49 |