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Abstract
Zachary Brecheisen, with help from Dan Richter, Will Cook, and others, augered and install 66 soil gas wells at various depths at 15 locations in the Calhoun CZO. Three of these locations are instrumented and continuously monitored, with data recorded every 30 minutes on a Campbell CR1000 datalogger, the rest sampled manually every 3 weeks. Installation occurred in the winter of 2015 through summer 2016. The continuously monitored gas wells target 3 different land use comparisons on flat upland topography. The land uses consist of a reference hardwood forest minimally degraded by human activity, an old-field secondary succession pine forest ~60 years old, and 1 plowed agricultural plot which has been, to the best of our knowledge, continually cultivated since at least the 1930s. The goal of this sampling is to identify anthropogenic biogeochemical signals in the soil profile of cultivated lands and to evaluate their persistence (or lack thereof) in old-field pine forests relative to reference hardwoods.
Methods:
Gasses measured include O2 (Apogee) and CO2 (Vaisala) probes located in soil gas wells at 25, 50, and 150 cm depths. Data are logged on a Campbell CR1000 datalogger every 30 minutes. Daily average values are computed.
Measurements (depths in cm):
Soil CO2: 50, 150 (all plots)
Soil O2: 50, 150 (all plots)
Soil temperature: 0 (soil surface temperature probe), 25 (all plots via TDR probe), 50 (all plots via TDR and apogee O2 probe), 150 (all plots via Apogee O2 probe)
Soil moisture (TDR probe): 25 (all plots), 50 (all plots)
Sites:
R1P1 - pine forest 34.60739,-81.72279
R1C1 - cultivated field 34.61014,-81.72699
R1H1 - hardwood forest 34.60643,-81.72332
Date Range Comments: data collection is ongoing, with data logged every 30 minutes
Subject Keywords
Coverage
Spatial
Temporal
| Start Date: | |
|---|---|
| End Date: |
Content
ReadMe.md
CCZO -- Soil Gas, Soil Moisture, Soil Temperature -- Research area 1 -- (2016-2019)
OVERVIEW
Description/Abstract
Zachary Brecheisen, with help from Dan Richter, Will Cook, and others, augered and install 66 soil gas wells at various depths at 15 locations in the Calhoun CZO. Three of these locations are instrumented and continuously monitored, with data recorded every 30 minutes on a Campbell CR1000 datalogger, the rest sampled manually every 3 weeks. Installation occurred in the winter of 2015 through summer 2016. The continuously monitored gas wells target 3 different land use comparisons on flat upland topography. The land uses consist of a reference hardwood forest minimally degraded by human activity, an old-field secondary succession pine forest ~60 years old, and 1 plowed agricultural plot which has been, to the best of our knowledge, continually cultivated since at least the 1930s. The goal of this sampling is to identify anthropogenic biogeochemical signals in the soil profile of cultivated lands and to evaluate their persistence (or lack thereof) in old-field pine forests relative to reference hardwoods.
Methods: Gasses measured include O2 (Apogee) and CO2 (Vaisala) probes located in soil gas wells at 25, 50, and 150 cm depths. Data are logged on a Campbell CR1000 datalogger every 30 minutes. Daily average values are computed.
Measurements (depths in cm): Soil CO2: 50, 150 (all plots) Soil O2: 50, 150 (all plots) Soil temperature: 0 (soil surface temperature probe), 25 (all plots via TDR probe), 50 (all plots via TDR and apogee O2 probe), 150 (all plots via Apogee O2 probe) Soil moisture (TDR probe): 25 (all plots), 50 (all plots)
Sites: R1P1 - pine forest 34.60739,-81.72279 R1C1 - cultivated field 34.61014,-81.72699 R1H1 - hardwood forest 34.60643,-81.72332
Creator/Author
Brecheisen, Z. S.|Cook, Charles W.|Richter, Daniel deB.
CZOs
Calhoun
Contact
Zachary Brecheisen, Nicholas School of the Environment, Duke University, Box 90328 Durham NC 27708, zbrecheisen@gmail.com
Subtitle
Sampled at depths of 0.25 m, 0.5 m, and 1.5 m.
SUBJECTS
Disciplines
Biogeochemistry|Soil Science / Pedology|Hydrology
Topics
Soil Gas|Soil Moisture|Soil Temperature
Keywords
CO2|O2|soil gas|deep soil|logged|Vaisala|Apogee|Campbell
Variables
Date|time|site|Treatment|surf_degC|0.5m_degC|0.5m_O2|0.5m_CO2|0.5m_H2O|1.5m_degC|1.5m_O2|1.5m_CO2|1.5m_H2O
Variables ODM2
Carbon dioxide|Temperature|Water Content|Oxygen
TEMPORAL
Date Start
2016-03-30
Date End
2019-06-26
Date Range Comments
data collection is ongoing, with data logged every 30 minutes
SPATIAL
Field Areas
Calhoun CZO Research Area 1
Location
Research area 1
North latitude
34.61306
South latitude
34.60555
West longitude
-81.72993000000001
East longitude
-81.71696999999999
REFERENCE
CZO ID
4658
Related datasets
CCZO -- Soil Gas -- Research areas 1, 4, 7 -- (2015-2017)
COMMENTS
Comments
Gasses measured include O2 (Apogee) and CO2 (Vaisala).
Additional Metadata
| Name | Value |
|---|---|
| czos | Calhoun |
| czo_id | 4658 |
| comments | Gasses measured include O2 (Apogee) and CO2 (Vaisala). |
| keywords | CO2, O2, soil gas, deep soil, logged, Vaisala, Apogee, Campbell |
| subtitle | Sampled at depths of 0.25 m, 0.5 m, and 1.5 m. |
| variables | Date, time, site, Treatment, surf_degC, 0.5m_degC, 0.5m_O2, 0.5m_CO2, 0.5m_H2O, 1.5m_degC, 1.5m_O2, 1.5m_CO2, 1.5m_H2O |
| disciplines | Biogeochemistry, Soil Science / Pedology, Hydrology |
| related_datasets | 4659 |
| date_range_comments | data collection is ongoing, with data logged every 30 minutes |
| related_datasets_hs | https://www.hydroshare.org/resource/272f43b9d49d44ee97a0d3d143e7a5cc/ |
How to Cite
This resource is shared under the Creative Commons Attribution CC BY.
http://creativecommons.org/licenses/by/4.0/
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