Linking soil microbial community structure to potential carbon mineralization: A continental scale assessment of reduced tillage

Rieke, E.L.; Cappellazzi, S.B.; Cope, M.; Liptzin, D.; Mac Bean, G.; Greub, K.L.H.; Norris, C.E.; Tracy, P.W.; Aberle, E.; Ashworth, A.; Bañuelos, O.; Bary, A.I.; Baumhardt, R.L.; Borbón Gracia, A.; Brainard, D.C.; Brennan, J.R.; Briones Reyes, D.; Bruhjell, D.; Carlyle, C.N.; Crawford, J.J.W.; Creech, C.F.; Culman, S.; Deen, B.; Dell, C.J.; Derner, J.D.; Ducey, T.F.; Duiker, S.W.; Dyck, M.F.; Ellert, B.; Espinosa Solorio, A.; Fonte, S.; Fonteyne, S.; Fortuna, A.M.; Foster, J.L.; Fultz, L.M.; Gamble, A.V.; Geddes, C.M.; Griffin-LaHue, D.; Grove, J.H.; Hamilton, S.K.; Xiying Hao; Hayden, Z.D.; Honsdorf, N.; Howe, J.A.; Ippolito, J.A.; Johnson, G.A.; Kautz, M.A.; Kitchen, N.R.; Sandeep Kumar; Kurtz, S.; Larney, F.J.; Lewis, K.L.; Liebman, M.; López Ramírez, A.; Machado, S.; Maharjan, B.; Martinez Gamiño, M.A.; May, W.E.; McClaran, M.P.; McDaniel, M.D.; Millar, N.; Mitchell, J.P.; Moore, A.D.; Moore Jr., P.A.; Mora Gutiérrez, M.; Nelson, K.A.; Omondi, E.C.; Osborne, S.L.; Osorio Alcalá, L.; Owens, P.; Pena-Yewtukhiw, E.M.; Poffenbarger, H.J.; Ponce Lira, B.; Reeve, J.R.; Reinbott, T.M.; Reiter, M.S.; Ritchey, E.L.; Roozeboom, K.L.; Yichao Rui; Sadeghpour, A.; Sainju, U.M.; Sanford, G.R.; Schillinger, W.F.; Schindelbeck, R.R.; Schipanski, M.; Schlegel, A.; Scow, K.M.; Sherrod, L.A.; Shober, A.L.; Sidhu, S.S.; Solís Moya, E.; St. Luce, M.; Strock, J.S.; Suyker, A.E.; Sykes, V.R.; Haiying Tao; Trujillo Campos, A.; Van Eerd, L.L.; Verhulst, N.; Vyn, T.J.; Yutao Wang; Watts, D.B.; William, B.B.; Wright, D.L.; Tiequan Zhang; Morgan, C.L.S.; Honeycutt, C.W.

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Rieke, E. L., Cappellazzi, S. B., Cope, M., Liptzin, D., Mac Bean, G., Greub, K. L., Norris, C. E., Tracy, P. W., Aberle, E., Ashworth, A. J., Bañuelos, O., Bary, A. I., Baumhardt, R. L., Borbón Gracia, A., Brainard, D. C., Brennan, J., Borbón Gracia, A., Bruhjell, D., Carlyle, C. N., . . . Honeycutt, C. W. (2022). Linking soil microbial community structure to potential carbon mineralization: A continental scale assessment of reduced tillage. Soil Biology & Biochemistry, 168, 108618. https://doi.org/10.1016/j.soilbio.2022.108618

Description

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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https://hdl.handle.net/10883/22027

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Journal

Soil Biology and Biochemistry

Journal volume

168

Article number

108618

Place of Publication

United Kingdom

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Elsevier

DOI

https://doi.org/10.1016/j.soilbio.2022.108618

AGROVOC

AGRICULTURE; CARBON; HEALTH; MICRO-ORGANISMS; MINERALOGY; RNA; AGRICULTURAL SOILS; CARBON MINERALIZATION; TILLAGE; SOIL QUALITY

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