CCZO -- Soil Gas -- Research areas 1, 4, 7 -- (2015-2017)

Authors:

Zachary S. Brecheisen Charles W. Cook Daniel deB. Richter

Owners:

CZO Calhoun CZO National

Type:

Resource

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The size of this resource is 87.5 KB

Created:

Nov 19, 2019 at 6:19 a.m.

Last updated:

Jul 12, 2021 at 5:37 p.m.

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Abstract

Zachary Brecheisen, with help from Dan Richter, Will Cook, Alex Cherkinsky, Jay Austin, and others, have augered and installed soil gas wells at 4 depths at 15 locations in the Calhoun CZO. Most installation occurred in the summer of 2015 and completed in summer 2016. Gas sampling of existing wells commenced 7-31-15 and has proceeded approximately every 3 weeks since then. The gas wells target 3 different land forms: flat uplands, mid-slopes, and steeper slopes in 3 different land use comparisons. The land uses consist of 3 reference hardwood forests minimally degraded by human activity, 3 old-field secondary succession pine forests >60 years old, and 1 pseudo-replicated agricultural plot which has been, to the best of our knowledge, continually cultivated from the 1930s at the latest. The goal of this sampling is to identify anthropogenic biogeochemical signals in the deep soil profile of cultivated lands and to evaluate their persistence or lack thereof in old-field pine forests relative to reference hardwoods. Soil gas is analyzed in the field for O2 using an Apogee oxygen meter and CO2 with a Vaisala meter. Other (greenhouse) gasses are brought back to the lab, where they are analyzed on a Varian gas chromatograph with known concentration standards.
Date Range Comments: samples collected and analyzed approximately every 3 weeks; ongoing

Subject Keywords

Coverage

Spatial

Coordinate System/Geographic Projection:

WGS 84 EPSG:4326

Coordinate Units:

Decimal degrees

Place/Area Name:

Calhoun CZO Research Area 1, Calhoun CZO Research Area 4, Calhoun CZO Research Area 7, Research areas 1, 4, 7

North Latitude

34.6162°

East Longitude

-81.6706°

South Latitude

34.5391°

West Longitude

-81.7654°

Temporal

Start Date:	07/31/2015
End Date:	11/22/2017

Streets Terrain Satelite

Spatial Extent

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Additional Metadata

Name	Value
czos	Calhoun
czo_id	4659
comments	Gasses analyzed/measured include O2, CO2, N2O, and CH4. O2 and CO2 are measured as percent concentrations. N2O and CH4 are measured in parts per million (ppm). Samples are collected from 4 depths in the soil profile: 0.5, 1.5, 3, & 5m.
keywords	greenhouse, gasses, N2O, CO2, O2, CH4, soil gas, weathering front, deep soil
subtitle	sampled at depths of 0.5, 1.5, 3, 5, and 8.5 meters
variables	Date, Site, Plot, Depth (m), Time, O2_pct, CO2_pct, GC_N2O_ppm, GC_CH4_ppm, GC_CO2_pct
disciplines	Biogeochemistry, Soil Science / Pedology
related_datasets	4658
date_range_comments	samples collected and analyzed approximately every 3 weeks; ongoing
related_datasets_hs	https://www.hydroshare.org/resource/57a0afc2bb0e42b180478668a565720d/

How to Cite

Brecheisen, Z. S., C. W. Cook, D. d. Richter (2021). CCZO -- Soil Gas -- Research areas 1, 4, 7 -- (2015-2017), HydroShare, http://www.hydroshare.org/resource/272f43b9d49d44ee97a0d3d143e7a5cc

This resource is shared under the Creative Commons Attribution CC BY.

http://creativecommons.org/licenses/by/4.0/

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