Sporadic P limitation constrains microbial growth and facilitates SOM accumulation in the stoichiometrically coupled, acclimating microbe-plant-soil model
© The Author(s), 2022. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Pold, G., Kwiatkowski, B. L., Rastetter, E. B., & Sistla, S. A. Sporadic P limitation constrains microbial growth and facilitates SOM accumulati...
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Online Access: | https://hdl.handle.net/1912/29440 |
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ftwhoas:oai:darchive.mblwhoilibrary.org:1912/29440 2023-05-15T15:15:21+02:00 Sporadic P limitation constrains microbial growth and facilitates SOM accumulation in the stoichiometrically coupled, acclimating microbe-plant-soil model Pold, Grace Kwiatkowski, Bonnie L. Rastetter, Edward B. Sistla, Seeta A. 2021-11-29 https://hdl.handle.net/1912/29440 unknown Elsevier https://doi.org/10.1016/j.soilbio.2021.108489 Pold, G., Kwiatkowski, B. L., Rastetter, E. B., & Sistla, S. A. (2022). Sporadic P limitation constrains microbial growth and facilitates SOM accumulation in the stoichiometrically coupled, acclimating microbe-plant-soil model. Soil Biology & Biochemistry, 165, 108489. https://hdl.handle.net/1912/29440 doi:10.1016/j.soilbio.2021.108489 Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ CC-BY-NC-ND Pold, G., Kwiatkowski, B. L., Rastetter, E. B., & Sistla, S. A. (2022). Sporadic P limitation constrains microbial growth and facilitates SOM accumulation in the stoichiometrically coupled, acclimating microbe-plant-soil model. Soil Biology & Biochemistry, 165, 108489. doi:10.1016/j.soilbio.2021.108489 Stoichiometry Modeling Microbial physiology Tundra Climate change Article 2021 ftwhoas https://doi.org/10.1016/j.soilbio.2021.108489 2022-10-22T22:57:18Z © The Author(s), 2022. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Pold, G., Kwiatkowski, B. L., Rastetter, E. B., & Sistla, S. A. Sporadic P limitation constrains microbial growth and facilitates SOM accumulation in the stoichiometrically coupled, acclimating microbe-plant-soil model. Soil Biology & Biochemistry, 165, (2022): 108489, https://doi.org/10.1016/j.soilbio.2021.108489. Requirements for biomass carbon (C), nitrogen (N), and phosphorus (P) constrain organism growth and are important agents for structuring ecosystems. Arctic tundra habitats are strongly nutrient limited as decomposition and recycling of nutrients are slowed by low temperature. Modeling interactions among these elemental cycles affords an opportunity to explore how disturbances such as climate change might differentially affect these nutrient cycles. Here we introduce a C–N–P-coupled version of the Stoichiometrically Coupled Acclimating Microbe-Plant-Soil (SCAMPS) model, “SCAMPS-CNP”, and a corresponding modified CN-only model, “SCAMPS-CN”. We compared how SCAMPS-CNP and the modified SCAMPS-CN models project a moderate (RCP 6.0) air warming scenario will impact tussock tundra nutrient availability and ecosystem C stocks. SCAMPS-CNP was characterized by larger SOM and smaller organism C stocks compared to SCAMPS-CN, and a greater reduction in ecosystem C stocks under warming. This difference can largely be attributed to a smaller microbial biomass in the CNP model, which, instead of being driven by direct costs of P acquisition, was driven by variable resource limitation due to asynchronous C, N, and P availability and demand. Warming facilitated a greater relative increase in plant and microbial biomass in SCAMPS-CNP, however, facilitated by increased extracellular enzyme pools and activity, which more than offset the metabolic costs associated with their production. Although the microbial community was able to flexibly adapt its stoichiometry ... Article in Journal/Newspaper Arctic Climate change Tundra Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) Arctic Soil Biology and Biochemistry 165 108489 |
institution |
Open Polar |
collection |
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) |
op_collection_id |
ftwhoas |
language |
unknown |
topic |
Stoichiometry Modeling Microbial physiology Tundra Climate change |
spellingShingle |
Stoichiometry Modeling Microbial physiology Tundra Climate change Pold, Grace Kwiatkowski, Bonnie L. Rastetter, Edward B. Sistla, Seeta A. Sporadic P limitation constrains microbial growth and facilitates SOM accumulation in the stoichiometrically coupled, acclimating microbe-plant-soil model |
topic_facet |
Stoichiometry Modeling Microbial physiology Tundra Climate change |
description |
© The Author(s), 2022. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Pold, G., Kwiatkowski, B. L., Rastetter, E. B., & Sistla, S. A. Sporadic P limitation constrains microbial growth and facilitates SOM accumulation in the stoichiometrically coupled, acclimating microbe-plant-soil model. Soil Biology & Biochemistry, 165, (2022): 108489, https://doi.org/10.1016/j.soilbio.2021.108489. Requirements for biomass carbon (C), nitrogen (N), and phosphorus (P) constrain organism growth and are important agents for structuring ecosystems. Arctic tundra habitats are strongly nutrient limited as decomposition and recycling of nutrients are slowed by low temperature. Modeling interactions among these elemental cycles affords an opportunity to explore how disturbances such as climate change might differentially affect these nutrient cycles. Here we introduce a C–N–P-coupled version of the Stoichiometrically Coupled Acclimating Microbe-Plant-Soil (SCAMPS) model, “SCAMPS-CNP”, and a corresponding modified CN-only model, “SCAMPS-CN”. We compared how SCAMPS-CNP and the modified SCAMPS-CN models project a moderate (RCP 6.0) air warming scenario will impact tussock tundra nutrient availability and ecosystem C stocks. SCAMPS-CNP was characterized by larger SOM and smaller organism C stocks compared to SCAMPS-CN, and a greater reduction in ecosystem C stocks under warming. This difference can largely be attributed to a smaller microbial biomass in the CNP model, which, instead of being driven by direct costs of P acquisition, was driven by variable resource limitation due to asynchronous C, N, and P availability and demand. Warming facilitated a greater relative increase in plant and microbial biomass in SCAMPS-CNP, however, facilitated by increased extracellular enzyme pools and activity, which more than offset the metabolic costs associated with their production. Although the microbial community was able to flexibly adapt its stoichiometry ... |
format |
Article in Journal/Newspaper |
author |
Pold, Grace Kwiatkowski, Bonnie L. Rastetter, Edward B. Sistla, Seeta A. |
author_facet |
Pold, Grace Kwiatkowski, Bonnie L. Rastetter, Edward B. Sistla, Seeta A. |
author_sort |
Pold, Grace |
title |
Sporadic P limitation constrains microbial growth and facilitates SOM accumulation in the stoichiometrically coupled, acclimating microbe-plant-soil model |
title_short |
Sporadic P limitation constrains microbial growth and facilitates SOM accumulation in the stoichiometrically coupled, acclimating microbe-plant-soil model |
title_full |
Sporadic P limitation constrains microbial growth and facilitates SOM accumulation in the stoichiometrically coupled, acclimating microbe-plant-soil model |
title_fullStr |
Sporadic P limitation constrains microbial growth and facilitates SOM accumulation in the stoichiometrically coupled, acclimating microbe-plant-soil model |
title_full_unstemmed |
Sporadic P limitation constrains microbial growth and facilitates SOM accumulation in the stoichiometrically coupled, acclimating microbe-plant-soil model |
title_sort |
sporadic p limitation constrains microbial growth and facilitates som accumulation in the stoichiometrically coupled, acclimating microbe-plant-soil model |
publisher |
Elsevier |
publishDate |
2021 |
url |
https://hdl.handle.net/1912/29440 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change Tundra |
genre_facet |
Arctic Climate change Tundra |
op_source |
Pold, G., Kwiatkowski, B. L., Rastetter, E. B., & Sistla, S. A. (2022). Sporadic P limitation constrains microbial growth and facilitates SOM accumulation in the stoichiometrically coupled, acclimating microbe-plant-soil model. Soil Biology & Biochemistry, 165, 108489. doi:10.1016/j.soilbio.2021.108489 |
op_relation |
https://doi.org/10.1016/j.soilbio.2021.108489 Pold, G., Kwiatkowski, B. L., Rastetter, E. B., & Sistla, S. A. (2022). Sporadic P limitation constrains microbial growth and facilitates SOM accumulation in the stoichiometrically coupled, acclimating microbe-plant-soil model. Soil Biology & Biochemistry, 165, 108489. https://hdl.handle.net/1912/29440 doi:10.1016/j.soilbio.2021.108489 |
op_rights |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.1016/j.soilbio.2021.108489 |
container_title |
Soil Biology and Biochemistry |
container_volume |
165 |
container_start_page |
108489 |
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1766345725400055808 |