U.S. Department of Agriculture: Agricultural Research Service, Lincoln, Nebraska



Elizabeth L. Rieke, Soil Health InstituteFollow
Shannon B. Cappellazzi, Soil Health Institute
Michael Cope, Soil Health Institute
Daniel Liptzin, Soil Health Institute
G. Mac Bean, Soil Health Institute
Kelsey L.H. Greub, Soil Health Institute
Charlotte E. Norris, Soil Health Institute
Paul W. Tracy, Soil Health Institute
Ezra Aberle, North Dakota State University
Amanda Ashworth, USDA ARS Poultry Production and Product Safety Research Unit
Oscar Bañuelos Tavarez, Centro Internacional de Mejoramiento de Maiz y Trigo
Andy I. Bary, Washington State University Puyallup Research and Extension Center
R. L. Baumhardt, United States Department of Agriculture
Alberto Borbón Gracia, Instituto Nacional de Investigaciones Forestales, Agricolas y Pecuarias
Daniel C. Brainard, Michigan State University
Jameson R. Brennan, South Dakota State University
Dolores Briones Reyes, Instituto Nacional de Investigaciones Forestales, Agricolas y Pecuarias
Darren Bruhjell, Agriculture et Agroalimentaire Canada
Cameron N. Carlyle, University of Alberta
James J.W. Crawford, University of Missouri Extension Agricultural Engineering
Cody F. Creech, Panhandle Research and Extension Center
Steve W. Culman, The Ohio State University
Bill Deen, University of Guelph
Curtis J. Dell, United States Department of Agriculture
Justin D. Derner, United States Department of Agriculture
Thomas F. Ducey, USDA ARS Coastal Plains Soil, Water, and Plant Research Center
Sjoerd W. Duiker, Pennsylvania State University
Miles F. Dyck, University of Alberta
Benjamin H. Ellert, Agriculture et Agroalimentaire Canada
Avelino Espinosa Solorio, Cimatario Santiago de Querétaro
Steven J. Fonte, Colorado State University
Simon Fonteyne, Centro Internacional de Mejoramiento de Maiz y Trigo
Ann Marie Fortuna, USDA ARS Grazinglands Research Laboratory
Jamie L. Foster, Texas A&M AgriLife Research
Lisa M. Fultz, Louisiana State University
Audrey V. Gamble, Auburn University
Charles M. Geddes, Agriculture et Agroalimentaire Canada
Deirdre Griffin-LaHue, Washington State University Pullman
John H. Grove, University of Kentucky
Stephen K. Hamilton, Michigan State University

Date of this Version



Soil Biology and Biochemistry 168 (2022) 108618



This is an open access article under the CC BY-NC-ND license


Potential carbon mineralization (Cmin) is a commonly used indicator of soil health, with greater Cmin values interpreted as healthier soil. While Cmin values are typically greater in agricultural soils managed with minimal physical disturbance, the mechanisms driving the increases remain poorly understood. This study assessed bacterial and archaeal community structure and potential microbial drivers of Cmin in soils maintained under various degrees of physical disturbance. Potential carbon mineralization, 16S rRNA sequences, and soil characterization data were collected as part of the North American Project to Evaluate Soil Health Measurements (NAPESHM). Results showed that type of cropping system, intensity of physical disturbance, and soil pH influenced microbial sensitivity to physical disturbance. Furthermore, 28% of amplicon sequence variants (ASVs), which were important in modeling Cmin, were enriched under soils managed with minimal physical disturbance. Sequences identified as enriched under minimal disturbance and important for modeling Cmin, were linked to organisms which could produce extracellular polymeric substances and contained metabolic strategies suited for tolerating environmental stressors. Understanding how physical disturbance shapes microbial communities across climates and inherent soil properties and drives changes in Cmin provides the context necessary to evaluate management impacts on standardized measures of soil microbial activity.

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