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Plant-Soil Relationships Influence Observed Trends Between Manganese and Carbon Across Biomes

Journal Article · · Global Biogeochemical Cycles
DOI:https://doi.org/10.1029/2022gb007412· OSTI ID:1909114
Manganese (Mn) is an essential plant micronutrient that plays a critical role in the litter decomposition by oxidizing and degrading complex organic molecules. Previous studies report a negative correlation between Mn concentrations and carbon (C) storage in organic horizons and suggest that high Mn concentrations in leaf litter reduce soil C storage in forest ecosystems, presumably by stimulating the oxidation of lignin by fungal enzymes. Yet, the relationship between Mn and C in the litter layer and organic soil remains poorly understood and restricted to a few biomes, hampering our ability to improve mechanistic understanding of soil C accumulation. Here, to examine plant-soil interactions that underlie observed relationships between Mn and C across a wide range of biomes, we extracted biogeochemical data reported for plants and soils from the National Ecological Observatory Network (NEON) database. We found that increased C and nitrogen (N) storage in organic horizons were associated with declines in Mn concentrations across diverse ecosystems at the continental scale, and this relationship was associated with the degree of organic matter decomposition (i.e., Oi, Oe, and Oa). Carbon and N stocks were more strongly correlated with Mn than with climatic variables (i.e., temperature and precipitation). Foliar Mn was strongly correlated with foliar lignin, and both these parameters increased with a decrease in soil pH, indicating links between soil pH, foliar chemistry, and litter decomposability. Our observations suggest that increased Mn bioavailability and accumulation in foliage under moderately acidic soil conditions support fungal decomposition of lignin-rich litter and contributes to lower soil C stocks.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
National Science Foundation (NSF); USDOE
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1909114
Alternate ID(s):
OSTI ID: 1922543
Journal Information:
Global Biogeochemical Cycles, Journal Name: Global Biogeochemical Cycles Journal Issue: 1 Vol. 37; ISSN 0886-6236
Publisher:
American Geophysical Union (AGU)Copyright Statement
Country of Publication:
United States
Language:
English

References (51)

Importance of vegetation for manganese cycling in temperate forested watersheds: Biogeochemistry of Mn contaminants journal February 2015
The soil and plant biogeochemistry sampling design for The National Ecological Observatory Network journal March 2016
The effects of managanese and nitrate supply on the levels of phenolics and lignin in young wheat plants journal October 1984
A global comparison of the nutritive values of forage plants grown in contrasting environments journal March 2018
Litter decomposition rate is dependent on litter Mn concentrations journal October 2006
Litter decomposition: what controls it and how can we alter it to sequester more carbon in forest soils? journal April 2010
Spectroscopic (XANES/XRF) characterization of contaminant manganese cycling in a temperate watershed journal August 2014
Roles of apoplastic peroxidases, laccases, and lignification in the manganese tolerance of hyperaccumulator Phytolacca americana journal August 2011
A comparison of lignin-degrading enzyme activities in forest floor layers across a global climatic gradient journal July 2020
Function of Nutrients book January 2012
Manganese in the litter fall-forest floor continuum of boreal and temperate pine and spruce forest ecosystems – A review journal December 2015
Lignin and fungal abundance modify manganese effects on soil organic carbon persistence at the continental scale journal November 2022
Knowledge gaps in soil carbon and nitrogen interactions – From molecular to global scale journal April 2011
Manganese limitation as a mechanism for reduced decomposition in soils under atmospheric nitrogen deposition journal December 2018
Increasing soil carbon content with declining soil manganese in temperate rainforests: is there a link to fungal Mn? journal January 2019
Characterization of a cDNA Encoding a Manganese Peroxidase, from the Lignin-degrading Basidiomycete Phanerochaete Chrysosporium journal March 1989
The macromolecular organic composition of plant and microbial residues as inputs to soil organic matter journal February 2002
Review: lignin conversion by manganese peroxidase (MnP) journal April 2002
Enzymes, Manganese, or Iron? Drivers of Oxidative Organic Matter Decomposition in Soils journal October 2020
A Critical Review on the Multiple Roles of Manganese in Stabilizing and Destabilizing Soil Organic Matter journal September 2021
Soils Reveal Widespread Manganese Enrichment from Industrial Inputs journal January 2011
Climatic and Geochemical Controls on Soil Carbon at the Continental Scale: Interactions and Thresholds journal March 2021
Manganese biogeochemistry in a small Adirondack forested lake watershed journal November 1986
The worldwide leaf economics spectrum journal April 2004
Temperature sensitivity of soil carbon decomposition and feedbacks to climate change journal March 2006
Water balance creates a threshold in soil pH at the global scale journal November 2016
Microbe-driven turnover offsets mineral-mediated storage of soil carbon under elevated CO2 journal November 2014
Soil carbon storage controlled by interactions between geochemistry and climate journal August 2015
Molecular trade-offs in soil organic carbon composition at continental scale journal September 2020
Manganese availability is negatively associated with carbon storage in northern coniferous forest humus layers journal November 2017
Long-term litter decomposition controlled by manganese redox cycling journal September 2015
Foliar Mn accumulation in eastern Australian herbarium specimens: prospecting for ‘new’ Mn hyperaccumulators and potential applications in taxonomy journal August 2009
Element accumulation patterns of deciduous and evergreen tree seedlings on acid soils: implications for sensitivity to manganese toxicity journal January 2005
Variation in Lignin Content and Composition (Mechanisms of Control and Implications for the Genetic Improvement of Plants) journal January 1996
More Manganese Accumulates in Maple Sun Leaves than in Shade Leaves journal August 1989
Soil organic carbon dynamics jointly controlled by climate, carbon inputs, soil properties and soil carbon fractions journal June 2017
Carbon respired by terrestrial ecosystems - recent progress and challenges journal February 2006
Global and regional importance of the tropical peatland carbon pool: TROPICAL PEATLAND CARBON POOL journal January 2011
Nutrient concentrations of foliage and soil in South‐western Australia journal November 1993
Managing the manganese: molecular mechanisms of manganese transport and homeostasis: Research review journal May 2005
A Large and Persistent Carbon Sink in the World's Forests journal July 2011
Manganese regulation of manganese peroxidase expression and lignin degradation by the white rot fungus Dichomitus squalens journal August 1991
Nitrogen regulation of lignin peroxidase gene transcription. journal January 1994
Molecular biology of the lignin-degrading basidiomycete Phanerochaete chrysosporium journal September 1993
The Uplift of soil Nutrients by Plants: Biogeochemical Consequences Across Scales journal September 2004
Four-Decade Responses of soil Trace Elements to an Aggrading Old-Field Forest: b, mn, zn, cu, and fe journal October 2008
Forest Carbon Sinks in the Northern Hemisphere journal June 2002
Soil Acidity and Manganese in Declining and Nondeclining Sugar Maple Stands in Pennsylvania journal January 2006
Nitrogen and Lignin Control of Hardwood Leaf Litter Decomposition Dynamics journal June 1982
Manganese in Plants: From Acquisition to Subcellular Allocation journal March 2020
Compositional Variability of Lignin in Biomass book March 2018

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