skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: The origin of soil organic matter controls its composition and bioreactivity across a mesic boreal forest latitudinal gradient

Journal Article · · Global Change Biology
DOI:https://doi.org/10.1111/gcb.13887· OSTI ID:1474865

Warmer climates have been associated with reduced bioreactivity of soil organic matter (SOM) typically attributed to increased diagenesis; the combined biological and physiochemical transformation of SOM. In addition, cross–site studies have indicated that ecosystem regime shifts, associated with long–term climate warming, can affect SOM properties through changes in vegetation and plant litter production thereby altering the composition of soil inputs. The relative importance of these two controls, diagenesis and inputs, on SOM properties as ecosystems experience climate warming, however, remains poorly understood. To address this issue we characterized the elemental, chemical (nuclear magnetic resonance spectroscopy and total hydrolysable amino acids analysis), and isotopic composition of plant litter and SOM across a well–constrained mesic boreal forest latitudinal transect in Atlantic Canada. Results across forest sites within each of three climate regions indicated that (1) climate history and diagenesis affect distinct parameters of SOM chemistry, (2) increases in SOM bioreactivity with latitude were associated with elevated proportions of carbohydrates relative to plant waxes and lignin, and (3) despite the common forest type across regions, differences in SOM chemistry by climate region were associated with chemically distinct litter inputs and not different degrees of diagenesis. The observed climate effects on vascular plant litter chemistry, however, explained only part of the regional differences in SOM chemistry, most notably the higher protein content of SOM from warmer regions. Greater proportions of lignin and aliphatic compounds and smaller proportions of carbohydrates in warmer sites' soils were explained by the higher proportion of vascular plant relative to moss litter in the warmer relative to cooler forests. Furthermore, these results indicate that climate change induced decreases in the proportion of moss inputs not only impacts SOM chemistry but also increases the resistance of SOM to decomposition, thus significantly altering SOM cycling in these boreal forest soils.

Research Organization:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1474865
Journal Information:
Global Change Biology, Vol. 24, Issue 2; ISSN 1354-1013
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 21 works
Citation information provided by
Web of Science

References (86)

Global soil carbon: understanding and managing the largest terrestrial carbon pool journal February 2014
Antifungal Bryophytes: A Possible Role Against Human Pathogens and in Plant Protection journal April 2011
The macromolecular organic composition of plant and microbial residues as inputs to soil organic matter journal February 2002
Modelling one- and two-dimensional solid-state NMR spectra: Modelling 1D and 2D solid-state NMR spectra journal December 2001
Antibacterial activity of pure flavonoids isolated from mosses journal December 1999
Climatic influences on active fractions of soil organic matter journal June 2001
Forest soils and carbon sequestration journal December 2005
Temperature and Plant Species Control Over Litter Decomposition in Alaskan Tundra journal February 1996
A solid phase extraction method for isolating HF-extractable soil organic matter for NMR analysis journal September 2017
The Role of Bryophytes in Carbon and Nitrogen Cycling journal September 2003
Soil carbon and nitrogen dynamics along a latitudinal transect in Western Siberia, Russia journal August 2006
The role of mosses in ecosystem succession and function in Alaska’s boreal forestThis article is one of a selection of papers from The Dynamics of Change in Alaska’s Boreal Forests: Resilience and Vulnerability in Response to Climate Warming. journal July 2010
Soil organic nitrogen cycling increases with temperature and precipitation along a boreal forest latitudinal transect journal January 2016
Distinct fungal and bacterial δ13C signatures as potential drivers of increasing δ13C of soil organic matter with depth journal May 2015
Soils isolated during incubation underestimate temperature sensitivity of respiration and its response to climate history journal February 2016
Little effects on soil organic matter chemistry of density fractions after seven years of forest soil warming journal December 2016
Soil warming alters microbial substrate use in alpine soils journal February 2014
Moss and lichen decomposition in old-growth and harvested high-boreal forests estimated using the litterbag and minicontainer methods journal August 2015
Evaluation and generalization of temperature-based methods for calculating evaporation journal January 2001
Terrestrial Carbon–Cycle Feedback to Climate Warming journal December 2007
Soil temperature, nitrogen mineralization, and carbon source–sink relationships in boreal forests journal May 1992
Drought and ecosystem carbon cycling journal July 2011
Environmental controls on ground cover species composition and productivity in a boreal black spruce forest journal October 2001
Controls on the Dynamics of Dissolved Organic Matter in Soils: a Review journal January 2000
An experimental comparison of chemical traits and litter decomposition rates in a diverse range of subarctic bryophyte, lichen and vascular plant species journal September 2009
Linking diagenetic alteration of amino acids and bulk organic matter reactivity journal October 1999
Stoichiometric imbalances between terrestrial decomposer communities and their resources: mechanisms and implications of microbial adaptations to their resources journal January 2014
Modelling temporal variability in the carbon balance of a spruce/moss boreal forest journal August 1996
Biotic and abiotic factors influencing soil properties across a latitudinal gradient in Victoria Land, Antarctica journal March 2008
Observed forest sensitivity to climate implies large changes in 21st century North American forest growth journal July 2016
Antibiotic Activity of Bryophytes journal July 1979
Improvement of 13C and 15N CPMAS NMR spectra of bulk soils, particle size fractions and organic material by treatment with 10% hydrofluoric acid journal June 1997
A warmer climate reduces the bioreactivity of isolated boreal forest soil horizons without increasing the temperature sensitivity of respiratory CO2 loss journal May 2015
Chemical Changes During 6 Years of Decomposition of 11 Litters in Some Canadian Forest Sites. Part 2. 13C Abundance, Solid-State 13C NMR Spectroscopy and the Meaning of “Lignin” journal September 2009
Anthropogenic nitrogen deposition in boreal forests has a minor impact on the global carbon cycle journal November 2013
Changes in aromaticity and carbon distribution of soil organic matter due to pedogenesis journal June 1989
Interactive biotic and abiotic regulators of soil carbon cycling: evidence from controlled climate experiments on peatland and boreal soils journal April 2014
Stability of Soil Carbon Stocks Varies with Forest Composition in the Canadian Boreal Biome journal March 2013
Origins and processing of organic matter in the Amazon River as indicated by carbohydrates and amino acids journal June 1994
Uncertainties in CMIP5 Climate Projections due to Carbon Cycle Feedbacks journal January 2014
Origins and bioavailability of dissolved organic matter in groundwater journal September 2014
The application of ecological stoichiometry to plant–microbial–soil organic matter transformations journal May 2015
Accumulation of aliphatic compounds in soil with increasing mean annual temperature journal November 2014
Stocks, Chemistry, and Sensitivity to Climate Change of Dead Organic Matter Along the Canadian Boreal Forest Transect Case Study journal January 2006
Litter decomposition: what controls it and how can we alter it to sequester more carbon in forest soils? journal April 2010
Northeastern North America as a potential refugium for boreal forests in a warming climate journal June 2016
Boreal forests can have a remarkable role in reducing greenhouse gas emissions locally: Land use-related and anthropogenic greenhouse gas emissions and sinks at the municipal level journal July 2016
Acclimatization of soil respiration to warming in a tall grass prairie journal October 2001
Carbon and nitrogen dynamics along the decay continuum: Plant litter to soil organic matter journal April 1989
Carbon pools and ecosystem properties along a latitudinal gradient in northern Scots pine (Pinus sylvestris) forests journal October 2000
Net Primary Production and Carbon Allocation Patterns of Boreal Forest Ecosystems journal October 2001
Soil organic matter biochemistry and potential susceptibility to climatic change across the forest-tundra ecotone in the Fennoscandian mountains journal May 2003
Differentiating moss from higher plants is critical in studying the carbon cycle of the boreal biome journal June 2014
Soil Warming and Carbon-Cycle Feedbacks to the Climate System journal December 2002
Influence of Temperature and Moisture Upon the Nature and Extent of Decomposition of Plant Residues by Microorganisms journal January 1931
Bryophyte-cyanobacteria associations as regulators of the northern latitude carbon balance in response to global change journal March 2013
Soil carbon stabilization in jack pine stands along the Boreal Forest Transect Case Study: SOIL CARBON STABILIZATION UNDER JACK PINE journal December 2010
A direct link between forest vegetation type and soil organic matter composition journal November 2001
Increased cuticular carbon sequestration and lignin oxidation in response to soil warming journal November 2008
Soil organic matter processes: characterization by 13C NMR and 14C measurements journal November 2000
Stabilization and destabilization of soil organic matter: mechanisms and controls journal November 1996
Soil warming and nitrogen deposition alter soil organic matter composition at the molecular-level journal February 2015
Bryophytes attenuate anthropogenic nitrogen inputs in boreal forests: BRYOPHYTES ATTENUATE NITROGEN DEPOSITION journal March 2011
Estimating global carbon uptake by lichens and bryophytes with a process-based model journal January 2013
Differences in chemical composition of soil organic matter in natural ecosystems from different climatic regions – A pyrolysis–GC/MS study journal March 2009
Growth and production dynamics of boreal mosses over climatic, chemical and topographic gradients journal September 1990
The changing global carbon cycle: linking plant-soil carbon dynamics to global consequences journal September 2009
Carbon distribution and aboveground net primary production in aspen, jack pine, and black spruce stands in Saskatchewan and Manitoba, Canada journal December 1997
Microbial characteristics of soils on a latitudinal transect in Siberia journal July 2003
The Temperature Response of CO2 Production from Bulk Soils and Soil Fractions is Related to Soil Organic Matter Quality journal September 2005
Anticipating the consequences of climate change for Canada’s boreal forest ecosystems journal December 2013
Amino acids and hexosamines as indicators of organic matter degradation state in North Sea sediments journal July 1998
Controls on Natural Nitrogen-15 and Carbon-13 Abundances in Forest Soil Organic Matter journal January 1988
Antibacterial Activity of Extracts from Some Bryophytes journal January 2012
The origin of litter chemical complexity during decomposition journal August 2012
Maximum decomposition limits of forest litter types: a synthesis journal May 1996
Contribution of cryptogamic covers to the global cycles of carbon and nitrogen journal June 2012
An Earth-system perspective of the global nitrogen cycle journal January 2008
Stabilization of organic matter in temperate soils: mechanisms and their relevance under different soil conditions - a review journal August 2006
Soil carbon stabilization along climate and stand productivity gradients in black spruce forests of interior Alaska journal September 2005
Aspects of the chemical structure of soil organic materials as revealed by solid-state13C NMR spectroscopy journal February 1992
Variability in litter quality and its relationship to litter decay in Canadian forests
  • Preston, Caroline M.; Trofymow, JA (Tony); Working Group, the Canadian Intersite Decompositio
  • Canadian Journal of Botany, Vol. 78, Issue 10 https://doi.org/10.1139/b00-101
journal October 2000
Temperature and vegetation effects on soil organic carbon quality along a forested mean annual temperature gradient in North America journal November 2007
Nutritional Regulation of Lignin Degradation by Phanerochaete chrysosporium journal January 1981
Biochemical evidence for minimal vegetation change in peatlands of the West Siberian Lowland during the Medieval Climate Anomaly and Little Ice Age journal May 2014
Variability in litter quality and its relationship to litter decay in Canadian forests
  • Preston, Caroline M.; Trofymow, J. A. (Tony); Working Group, the Canadian Intersite Decomposition Experiment
  • Canadian Journal of Botany, Vol. 78, Issue 10 https://doi.org/10.1139/cjb-78-10-1269
journal January 2000

Cited By (7)

Amino acid δ15N indicates lack of N isotope fractionation during soil organic nitrogen decomposition journal February 2018
Boreal tree species affect soil organic matter composition and saprotrophic mineralization rates journal May 2019
Soil organic carbon components in inner Mongolian shrub-encroached grasslands journal June 2019
Factors Controlling Storage, Sources, and Diagenetic State of Organic Carbon in a Prograding Subaerial Delta: Wax Lake Delta, Louisiana journal May 2019
High-throughput determination of the organic matter content in soil and municipal sludge by headspace gas chromatography journal January 2019
Temperature sensitivity of biomass‐specific microbial exo‐enzyme activities and CO 2 efflux is resistant to change across short‐ and long‐term timescales journal February 2019
Biochemical and structural controls on the decomposition dynamics of boreal upland forest moss tissues journal January 2018