Reviews and syntheses: Soil responses to manipulated precipitation changes – an assessment of meta-analyses

<p>In the face of ongoing and projected climatic changes, precipitation manipulation experiments (PMEs) have produced a wealth of data about the effects of precipitation changes on soils. In response, researchers have undertaken a number of synthetic efforts. Several meta-analyses have been co...

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Main Authors: A. O. Abbasi, A. Salazar, Y. Oh, S. Reinsch, M. del Rosario Uribe, J. Li, I. Rashid, J. S. Dukes
Format: Article
Language:English
Published: Copernicus Publications 2020-07-01
Series:Biogeosciences
Online Access:https://bg.copernicus.org/articles/17/3859/2020/bg-17-3859-2020.pdf
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author A. O. Abbasi
A. Salazar
A. Salazar
Y. Oh
S. Reinsch
M. del Rosario Uribe
J. Li
I. Rashid
J. S. Dukes
J. S. Dukes
author_facet A. O. Abbasi
A. Salazar
A. Salazar
Y. Oh
S. Reinsch
M. del Rosario Uribe
J. Li
I. Rashid
J. S. Dukes
J. S. Dukes
author_sort A. O. Abbasi
collection DOAJ
description <p>In the face of ongoing and projected climatic changes, precipitation manipulation experiments (PMEs) have produced a wealth of data about the effects of precipitation changes on soils. In response, researchers have undertaken a number of synthetic efforts. Several meta-analyses have been conducted, each revealing new aspects of soil responses to precipitation changes. Here, we conducted a comparative analysis of the findings of 16 meta-analyses focused on the effects of precipitation changes on 42 soil response variables, covering a wide range of soil processes. We examine responses of individual variables as well as more integrative responses of carbon and nitrogen cycles. We find strong agreement among meta-analyses that belowground carbon and nitrogen cycling accelerate under increased precipitation and slow under decreased precipitation, while bacterial and fungal communities are relatively resistant to decreased precipitation. Much attention has been paid to fluxes and pools in carbon, nitrogen, and phosphorus cycles, such as gas emissions, soil carbon, soil phosphorus, extractable nitrogen ions, and biomass. The rates of processes underlying these variables (e.g., mineralization, fixation, and (de)nitrification) are less frequently covered in meta-analytic studies, with the major exception of respiration rates. Shifting scientific attention to these less broadly evaluated processes would deepen the current understanding of the effects of precipitation changes on soil and provide new insights. By jointly evaluating meta-analyses focused on a wide range of variables, we provide here a holistic view of soil responses to changes in precipitation.</p>
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spelling doaj.art-1aef968261234630ab61cb42977b64ba2022-12-22T00:20:06ZengCopernicus PublicationsBiogeosciences1726-41701726-41892020-07-01173859387310.5194/bg-17-3859-2020Reviews and syntheses: Soil responses to manipulated precipitation changes – an assessment of meta-analysesA. O. Abbasi0A. Salazar1A. Salazar2Y. Oh3S. Reinsch4M. del Rosario Uribe5J. Li6I. Rashid7J. S. Dukes8J. S. Dukes9Department of Forestry and Natural Resources, Purdue University, West Lafayette, IN 47907, USADepartment of Biological Sciences, Purdue University, West Lafayette, IN 47907, USAPrograma de Ciencias Básicas de la Biodiversidad, Instituto de Investigación de Recursos Biológicos Alexander von Humboldt, Bogotá, 110311, ColombiaDepartment of Earth, Atmospheric, and Planetary Sciences, Purdue University, West Lafayette, IN 47907, USAUK Centre for Ecology & Hydrology, Bangor, LL57 2UW, UKDepartment of Forestry and Natural Resources, Purdue University, West Lafayette, IN 47907, USADepartment of Earth, Atmospheric, and Planetary Sciences, Purdue University, West Lafayette, IN 47907, USADepartment of Botany, University of Kashmir, Srinagar, 190006, IndiaDepartment of Forestry and Natural Resources, Purdue University, West Lafayette, IN 47907, USADepartment of Biological Sciences, Purdue University, West Lafayette, IN 47907, USA<p>In the face of ongoing and projected climatic changes, precipitation manipulation experiments (PMEs) have produced a wealth of data about the effects of precipitation changes on soils. In response, researchers have undertaken a number of synthetic efforts. Several meta-analyses have been conducted, each revealing new aspects of soil responses to precipitation changes. Here, we conducted a comparative analysis of the findings of 16 meta-analyses focused on the effects of precipitation changes on 42 soil response variables, covering a wide range of soil processes. We examine responses of individual variables as well as more integrative responses of carbon and nitrogen cycles. We find strong agreement among meta-analyses that belowground carbon and nitrogen cycling accelerate under increased precipitation and slow under decreased precipitation, while bacterial and fungal communities are relatively resistant to decreased precipitation. Much attention has been paid to fluxes and pools in carbon, nitrogen, and phosphorus cycles, such as gas emissions, soil carbon, soil phosphorus, extractable nitrogen ions, and biomass. The rates of processes underlying these variables (e.g., mineralization, fixation, and (de)nitrification) are less frequently covered in meta-analytic studies, with the major exception of respiration rates. Shifting scientific attention to these less broadly evaluated processes would deepen the current understanding of the effects of precipitation changes on soil and provide new insights. By jointly evaluating meta-analyses focused on a wide range of variables, we provide here a holistic view of soil responses to changes in precipitation.</p>https://bg.copernicus.org/articles/17/3859/2020/bg-17-3859-2020.pdf
spellingShingle A. O. Abbasi
A. Salazar
A. Salazar
Y. Oh
S. Reinsch
M. del Rosario Uribe
J. Li
I. Rashid
J. S. Dukes
J. S. Dukes
Reviews and syntheses: Soil responses to manipulated precipitation changes – an assessment of meta-analyses
Biogeosciences
title Reviews and syntheses: Soil responses to manipulated precipitation changes – an assessment of meta-analyses
title_full Reviews and syntheses: Soil responses to manipulated precipitation changes – an assessment of meta-analyses
title_fullStr Reviews and syntheses: Soil responses to manipulated precipitation changes – an assessment of meta-analyses
title_full_unstemmed Reviews and syntheses: Soil responses to manipulated precipitation changes – an assessment of meta-analyses
title_short Reviews and syntheses: Soil responses to manipulated precipitation changes – an assessment of meta-analyses
title_sort reviews and syntheses soil responses to manipulated precipitation changes an assessment of meta analyses
url https://bg.copernicus.org/articles/17/3859/2020/bg-17-3859-2020.pdf
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