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Soil sensor data in an irrigated pecan orchard of western Texas from the Drylands critical zone project


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Created: May 16, 2024 at 7:09 p.m.
Last updated: May 16, 2024 at 7:09 p.m.
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Abstract

Abstract
In natural drylands, the formation of pedogenic carbonate (secondary calcite, CaCO3) is critical in impacting the soil properties hydrologically and biogeochemically, and modifying the global carbon cycle over geological time. When dryland ecosystems are converted to managed agricultural sites, irrigation water supplies HCO3- and Ca2+, accelerating the rates of CaCO3 formation and releasing abiotic CO2. We investigated the abiotic and biotic processes that have produced soil CO2 in dryland soils at an irrigated pecan orchard in Tornillo, Texas. Two sites within the pecan orchard, Pecan_Coarse, and Pecan_Fine, have contrasting soil textures resulting in different soil salinity, pedogenic carbonate accumulation rates, and tree sizes. A range of methods was employed including soil CO2, soil O2, and soil moisture sensors at two different soil depths (30 cm and 60 cm below ground surface). The overall objective of this study is to quantify the release of abiotic CO2 during the precipitation of irrigation-induced calcite, as a function of spatial variability due to soil texture, and as a function of growing season and irrigation events at a high temporal scale.

Subject Keywords

Coverage

Spatial

Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
Place/Area Name:
Pecan_Coarse
Longitude
-106.0548°
Latitude
31.4053°

Temporal

Start Date:
End Date:

Content

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Credits

Funding Agencies

This resource was created using funding from the following sources:
Agency Name Award Title Award Number
NSF Network Cluster: Patterns and controls of ecohydrology, CO2 fluxes, and nutrient availability in pedogenic carbonate-dominated dryland critical zones 2012475
NSF Combine sensors, geophysical survey and geochemical tools to investigate pedogenic carbonate precipitation and carbon dioxide emission in irrigated soils of aridlands 1853680

Contributors

People or Organizations that contributed technically, materially, financially, or provided general support for the creation of the resource's content but are not considered authors.

Name Organization Address Phone Author Identifiers
Valeria Molina UTEP

How to Cite

Jin, L. (2024). Soil sensor data in an irrigated pecan orchard of western Texas from the Drylands critical zone project, HydroShare, http://www.hydroshare.org/resource/760ee7dd79ec4d819fc106aed1e79f0a

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

http://creativecommons.org/licenses/by/4.0/
CC-BY

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