Elevated CO2 and warming cause interactive effects on soil carbon and shifts in carbon use by bacteria

Ecology Letters
Yolima CarrilloElise Pendall

Abstract

Accurate predictions of soil C feedbacks to climate change depend on an improved understanding of responses of soil C pools and C use by soil microbial groups. We assessed soil and microbial C in a 7-year manipulation of CO2 and warming in a semi-arid grassland. Continuous field isotopic labelling under elevated CO2 further allowed us to study the dynamics of the existing C (Old C) in soil and microbes as affected by warming. Warming reduced soil C under elevated CO2 but had no impact under ambient CO2 . Loss of soil C under warming and elevated CO2 was attributed to increased proportional loss of Old C. Warming also reduced the proportion of Old C in microbes, specifically the bacteria, but not the fungi. These findings highlight that warming impacts are C pool and microbial taxa dependent and demonstrate interactive effects of warming and atmospheric CO2 on soil C.

References

May 17, 2007·The New Phytologist·William J PartonStephen Del Grosso
Dec 22, 2009·Applied and Environmental Microbiology·Hector F CastroChristopher W Schadt
Jan 29, 2011·Oecologia·Joseph C BlankinshipBruce A Hungate
Jun 13, 2012·Proceedings of the National Academy of Sciences of the United States of America·Francesca M HopkinsSusan E Trumbore
Nov 29, 2012·Nature Communications·Chao Liang, Teri C Balser
Oct 10, 2013·Global Change Biology·Kathrin StreitRolf T W Siegwolf
Jan 1, 2014·Applied and Environmental Microbiology·Chengwei LuoKonstantinos T Konstantinidis
Mar 20, 2014·Oecologia·Yolima CarrilloElise Pendall
Apr 26, 2014·Science·Kees Jan van GroenigenBruce A Hungate
Nov 13, 2014·Frontiers in Microbiology·Steven D Allison
Aug 28, 2015·Global Change Biology·Kees Jan van GroenigenBruce A Hungate
Dec 15, 2015·Scientific Reports·Ji ChenJunji Cao
Feb 21, 2016·Global Change Biology·Lingyan ZhouShahla Hosseini Bai
Jun 3, 2016·Global Change Biology·Christopher K BlackEvan H DeLucia
Dec 3, 2016·Nature·T W CrowtherM A Bradford
Mar 11, 2017·Science·Caitlin E Hicks PriesM S Torn
May 10, 2017·Global Change Biology·Kees Jan van GroenigenBruce A Hungate
Feb 23, 2018·Nature·Natasja van GestelBruce A Hungate

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.