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Abstract
Shale and sandstone are the most common lithologies of the forested ridges throughout the Appalachian Mountains. The overall goal of this thesis was to determine whether these two rock types impart distinct biogeochemical properties to soils and plants. The effects of rock type (lithology) on soil gas concentration, nutrient concentration and nutrient limitation were studied in the Ridge and Valley province of central Pennsylvania. To increase understanding of lithological controls on soil gases (Chapter 1), we monitored the depth distribution of soil CO2 and O2 concentrations in central Pennsylvania in two watersheds on different lithologies. We deployed gas monitoring instrumentation on two catena transects that included four topographical positions, one located on sandstone and the other on shale. As expected, with increasing soil depth O2 concentrations decreased while pCO2 increased. CO2 and O2 concentrations varied more with topographical position than with lithology, as the valley floor positions in both catenas had the highest pCO2 for a given depth. Both manual sampling from gas access tubes throughout the soil profile and continuous sampling by buried sensors documented these patterns.
Subject Keywords
Coverage
Spatial
Temporal
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Content
ReadMe.md
SSHCZO -- Soil Gas, Soil Moisture -- Garner Run and Shale Hills -- (2015-2016)
OVERVIEW
Description/Abstract
Shale and sandstone are the most common lithologies of the forested ridges throughout the Appalachian Mountains. The overall goal of this thesis was to determine whether these two rock types impart distinct biogeochemical properties to soils and plants. The effects of rock type (lithology) on soil gas concentration, nutrient concentration and nutrient limitation were studied in the Ridge and Valley province of central Pennsylvania. To increase understanding of lithological controls on soil gases (Chapter 1), we monitored the depth distribution of soil CO2 and O2 concentrations in central Pennsylvania in two watersheds on different lithologies. We deployed gas monitoring instrumentation on two catena transects that included four topographical positions, one located on sandstone and the other on shale. As expected, with increasing soil depth O2 concentrations decreased while pCO2 increased. CO2 and O2 concentrations varied more with topographical position than with lithology, as the valley floor positions in both catenas had the highest pCO2 for a given depth. Both manual sampling from gas access tubes throughout the soil profile and continuous sampling by buried sensors documented these patterns.
Creator/Author
Jason Kaye|Lillian Hill
CZOs
Shale Hills
Contact
Dr. Jason Kaye, Professor of Soil Biogeochemistry, The Pennsylvania State University, 416 Agricultural Sciences and Industries Building, University Park, PA 16802, (814) 863-1614 jpk12@psu.edu, Lillian Hill, lillianzane13@gmail.com, Former Graduate Student
SUBJECTS
Disciplines
Geophysics|Geochemistry / Mineralogy
Topics
Soil Gas|Soil Moisture
Keywords
Soil Gas|CO2|O2|automated sensors|hand sampled|soil moisture|TDR
Variables
TIMESTAMP|RECORD| O2_30_Avg|O2_80_Avg|DiffVolt_1_Avg|DiffVolt_2_Avg|CO2_30_lo_Avg|CO2_30_hi_Avg|CO2_80_lo_Avg|CO2_80_hi_Avg
Variables ODM2
Carbon dioxide|Voltage|Oxygen|Recorder code
TEMPORAL
Date Start
2015-08-15
Date End
2016-12-01
SPATIAL
Field Areas
Susquehanna Shale Hills Critical Zone Observatory
Location
Garner Run and Shale Hills
North latitude
40.704951
South latitude
40.689399
West longitude
-77.928923
East longitude
-77.912089
REFERENCE
Citation
The following acknowledgment should accompany any publication or citation of these data: Logistical support and/or data were provided by the NSF-supported Susquehanna Shale Hills Critical Zone Observatory.
CZO ID
6639
Additional Metadata
| Name | Value |
|---|---|
| czos | Shale Hills |
| czo_id | 6639 |
| citation | The following acknowledgment should accompany any publication or citation of these data: Logistical support and/or data were provided by the NSF-supported Susquehanna Shale Hills Critical Zone Observatory. |
| keywords | Soil Gas, CO2, O2, automated sensors, hand sampled, soil moisture, TDR |
| variables | TIMESTAMP, RECORD, O2_30_Avg, O2_80_Avg, DiffVolt_1_Avg, DiffVolt_2_Avg, CO2_30_lo_Avg, CO2_30_hi_Avg, CO2_80_lo_Avg, CO2_80_hi_Avg |
| disciplines | Geophysics, Geochemistry / Mineralogy |
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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