Summary & Purpose

Soil depth to bedrock or impermeable layer can vary greatly, contributing to landscape heterogeneity that may yield strong control on near-surface soil biogeochemical processes. We experimentally manipulate soil depth (i.e. control volume), water inputs, and plant functional type, and quantified the response of soil carbon (C) and nitrogen (N) dynamics in soils 0-10 cm deep for a cold desert ecosystem. Soil moisture was consistently greater in 0.5 m vs. 2 m control volumes. However, the coefficient of variation for soil moisture pools trended significantly higher with less effective precipitation in 0.5 m control volumes, whereas 2 m profile soil moisture pools remained relatively constant and well buffered. Net N mineralization was 1.24× greater in 0.5 vs. 2 m control volumes during dry conditions but decreased in a cold wet year. Net N mineralization also varied between native shrub-steppe vs. exotic bunchgrass during the wet spring. Net nitrification rates were 4.8× greater in 0.5 vs. 2 m control volumes and were positively correlated with surface soil moisture content. Mean profile δ13C values were significantly more enriched (0.8‰) in 2 vs. 0.5 m control volumes, reflecting greater plant-water limitation. Mean profile δ15N values were 0.8‰ more enriched in 0.5 vs. 2 m control volumes, indicating enhanced pathways of N cycling and loss. Total C and N pools were 1.56× and 1.23× greater, respectively, in 0.5 vs. 2 m control volumes.

Author Identifier

David P. Huber, ORCID: 0000-0003-4746-7137
Kathleen A. Lohse, ORCID: 0000-0003-1779-6773
Ken Aho, ORCID: 0000-0001-5998-2916
Mark Seyfried, ORCID: 0000-0001-8081-0713
Matthew Germino, ORCID: 0000-0001-6326-7579

Date of Publication or Submission

4-14-2022

DOI

https://doi.org/10.18122/reynoldscreek.27.boisestate

Funding Citation

Support for this research was provided in part by a grant from the Idaho State University College of Science & Engineering, a Geological Society of America Graduate Student Research Grant (#9961-12), Idaho EPSCoR RII via NSF EPS-0814387, and Reynolds Creek CZO Cooperative agreement NSF EAR-1331872.

Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. USDA is an equal-opportunity provider and employer.

Data Source Credits

Flerchinger, G.N., & Seyfried, M.S. (2014). "Comparison of Methods for Estimating Evapotranspiration in a Small Rangeland Catchment". Vadose Zone Journal, 13(4), 1-11. https://doi.org/10.2136/vzj2013.08.0152 MesoWest Data (Accessed 2021) http://mesowest.utah.edu/index.html

Single Dataset or Series?

Series

Data Format

*.xlsx; *.csv

Data Attributes

See metadata *.csv file

Map Area

4829322.5m N

Map Area

346442.9m E

Map Area Coordinate System

WGS1984 - 12T elev. 1490 m

Time Period

2011-2014

Privacy and Confidentiality Statement

Boise State is explicitly compliant with federal and state laws surrounding data privacy including the protection of personal financial information through the Gramm-Leach-Bliley Act, personal medical information through HIPAA, HITECH and other regulations. All human subject data (e.g., surveys) has been collected and managed only by personnel with adequate human subject protection certification.

Use Restrictions

  1. Use our data freely. All CZO, USGS, and USDA-ARS Data Products* except those labelled Private** are released to the public and may be freely copied, distributed, edited, remixed, and built upon under the condition that you give acknowledgement as described below.
  2. Give proper acknowledgement. Publications, models and data products that make use of these datasets must include proper acknowledgement, including citing datasets in a similar way to citing a journal article (i.e. author, title, year of publication, name of CZO “publisher”, edition or version, and URL or DOI access information. See http://www.datacite.org/whycitedata).
  3. Let us know how you will use the data. The dataset creators would appreciate hearing of any plans to use the dataset. Consider consultation or collaboration with dataset creators. *CZO Data Products. Defined as a data collected with any monetary or logistical support from a CZO.

Disclaimer of Warranty

BOISE STATE UNIVERSITY MAKES NO REPRESENTATIONS ABOUT THE SUITABILITY OF THE INFORMATION CONTAINED IN OR PROVIDED AS PART OF THE SYSTEM FOR ANY PURPOSE. ALL SUCH INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. BOISE STATE UNIVERSITY HEREBY DISCLAIMS ALL WARRANTIES AND CONDITIONS WITH REGARD TO THIS INFORMATION, INCLUDING ALL WARRANTIES AND CONDITIONS OF MERCHANTABILITY, WHETHER EXPRESS, IMPLIED OR STATUTORY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT.

IN NO EVENT SHALL BOISE STATE UNIVERSITY BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF INFORMATION AVAILABLE FROM THE SYSTEM.

THE INFORMATION PROVIDED BY THE SYSTEM COULD INCLUDE TECHNICAL INACCURACIES OR TYPOGRAPHICAL ERRORS. CHANGES ARE PERIODICALLY ADDED TO THE INFORMATION HEREIN. COMPANY AND/OR ITS RESPECTIVE SUPPLIERS MAY MAKE IMPROVEMENTS AND/OR CHANGES IN THE PRODUCT(S) AND/OR THE PROGRAM(S) DESCRIBED HEREIN AT ANY TIME, WITH OR WITHOUT NOTICE TO YOU.

BOISE STATE UNIVERSITY DOES NOT MAKE ANY ASSURANCES WITH REGARD TO THE ACCURACY OF THE RESULTS OR OUTPUT THAT DERIVES FROM USE OF THE SYSTEM.

Comments

This research was performed in collaboration with Roger Blew, Amy Forman, and other contractors of the Idaho National Lab, who assisted with access. Thank you also to Stephen Joy for his substantial help with soil collection and processing. Susan Parsons performed the NACP: Unified North American Soil Map database data query and GIS basin delineation.

Available for download on Friday, April 14, 2023

Share

Article Location

 
COinS