Reviews and syntheses: Soil responses to manipulated precipitation changes – an assessment of meta-analyses
-
Published:2020-07-29
Issue:14
Volume:17
Page:3859-3873
-
ISSN:1726-4189
-
Container-title:Biogeosciences
-
language:en
-
Short-container-title:Biogeosciences
Author:
Abbasi Akane O.ORCID, Salazar Alejandro, Oh YoumiORCID, Reinsch SabineORCID, del Rosario Uribe Maria, Li JianghanyangORCID, Rashid IrfanORCID, Dukes Jeffrey S.ORCID
Abstract
Abstract. 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.
Funder
Natural Environment Research Council University Grants Commission
Publisher
Copernicus GmbH
Subject
Earth-Surface Processes,Ecology, Evolution, Behavior and Systematics
Reference90 articles.
1. Abbasi, A. O., Salazar, A., Oh, Y., Reinsch, S., Uribe, M. R., Li, J., Rashid, I., and Dukes, J. S.:
Soil responses to manipulated precipitation changes: A synthesis of meta-analysis,
Purdue University Research Repository,
https://doi.org/10.4231/16NT-CW47, 2020. 2. Adamsen, A. P. S. and King, G. M.:
Methane consumption in temperate and subarctic forest soils: rates, vertical zonation, and responses to water and nitrogen,
Appl. Environ. Microb.,
59, 485–490, 1993. 3. Bao, J., Sherwood, S. C., Alexander, L. V., and Evans, J. P.: Future increases in extreme precipitation exceed observed scaling rates,
Nat. Clim. Change,
7, 128–132, https://doi.org/10.1038/nclimate3201, 2017. 4. Bardgett, R. D., Freeman, C., and Ostle, N. J.:
Microbial contributions to climate change through carbon cycle feedbacks,
ISME J.,
2, 805–814, https://doi.org/10.1038/ismej.2008.58, 2008. 5. Barnard, R., Leadley, P. W., and Hungate, B. A.:
Global change, nitrification, and denitrification: A review,
Global Biogechem. Cy.,
19, GB1007, https://doi.org/10.1029/2004GB002282, 2005.
Cited by
22 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献
|
|