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Title: Extending a land-surface model with <i>Sphagnum</i> moss to simulate responses of a northern temperate bog to whole ecosystem warming and elevated CO<sub>2</sub>

Journal Article · · Biogeosciences (Online)

Mosses need to be incorporated into Earth system models to better simulate peatland functional dynamics under the changing environment. Sphagnum mosses are strong determinants of nutrient, carbon, and water cycling in peatland ecosystems. However, most land-surface models do not include Sphagnum or other mosses as represented plant functional types (PFTs), thereby limiting predictive assessment of peatland responses to environmental change. In this study, we introduce a moss PFT into the land model component (ELM) of the Energy Exascale Earth System Model (E3SM) by developing water content dynamics and nonvascular photosynthetic processes for moss. The model was parameterized and independently evaluated against observations from an ombrotrophic forested bog as part of the Spruce and Peatland Responses Under Changing Environments (SPRUCE) project. The inclusion of a Sphagnum PFT with some Sphagnum-specific processes in ELM allows it to capture the observed seasonal dynamics of Sphagnum gross primary production (GPP) albeit with an underestimate of peak GPP. The model simulated a reasonable annual net primary production (NPP) for moss but with less interannual variation than observed, and it reproduced aboveground biomass for tree PFTs and stem biomass for shrubs. Different species showed highly variable warming responses under both ambient and elevated atmospheric CO2 concentrations, and elevated CO2 altered the warming response direction for the peatland ecosystem. Microtopography is critical: Sphagnum mosses on hummocks and hollows were simulated to show opposite warming responses (NPP decreasing with warming on hummocks but increasing in hollows), and hummock Sphagnum was modeled to have a strong dependence on water table height. The inclusion of this new moss PFT in global ELM simulations may provide a useful foundation for the investigation of northern peatland carbon exchange, enhancing the predictive capacity of carbon dynamics across the regional and global scales.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
Grant/Contract Number:
AC05–00OR22725; AC05-00OR22725
OSTI ID:
1761224
Alternate ID(s):
OSTI ID: 1764489
Journal Information:
Biogeosciences (Online), Journal Name: Biogeosciences (Online) Vol. 18 Journal Issue: 2; ISSN 1726-4189
Publisher:
Copernicus GmbHCopyright Statement
Country of Publication:
Germany
Language:
English

References (133)

Growth Potential of Three Sphagnum Species in Relation to Water Table Level and Peat Properties with Implications for Their Restoration in Cut- Over Bogs journal April 1997
Attaining whole-ecosystem warming using air and deep-soil heating methods with an elevated CO 2 atmosphere journal January 2017
Calibration of the E3SM Land Model Using Surrogate-Based Global Optimization journal June 2018
Methanotrophic symbionts provide carbon for photosynthesis in peat bogs journal August 2005
Responses of Arctic Tundra to Experimental and Observed Changes in Climate journal April 1995
Long-term effects of climate change on vegetation and carbon dynamics in peat bogs journal January 2008
Evaluating the Community Land Model (CLM4.5) at a coniferous forest site in northwestern United States using flux and carbon-isotope measurements journal January 2017
Coupled Photosynthesis-Stomatal Conductance Model for Leaves of C4 Plants journal January 1992
Northern Peatlands: Role in the Carbon Cycle and Probable Responses to Climatic Warming journal May 1991
Temperature and Plant Species Control Over Litter Decomposition in Alaskan Tundra journal February 1996
Efficient surrogate modeling methods for large-scale Earth system models based on machine-learning techniques journal January 2019
Role of morphological structure and layering of Sphagnum and Tomenthypnum mosses on moss productivity and evaporation rates journal May 2015
From The Cover: Plant community responses to experimental warming across the tundra biome journal January 2006
Plant Responses to Species Removal and Experimental Warming in Alaskan Tussock Tundra journal March 1999
Photosynthesis, chlorophyll fluorescence and spectral reflectance in Sphagnum moss at varying water contents journal April 2007
Biophysical drivers of seasonal variability in Sphagnum gross primary production in a northern temperate bog journal May 2017
Modelling contrasting responses of wetland productivity to changes in water table depth journal January 2012
Feather moss nitrogen acquisition across natural fertility gradients in boreal forests journal June 2013
Annual and seasonal variability in evapotranspiration and water table at a shrub-covered bog in southern Ontario, Canada journal January 2005
Sensitivity of CO2 Exchange of Fen Ecosystem Components to Water Level Variation journal September 2007
Rapid expansion of northern peatlands and doubled estimate of carbon storage journal October 2019
Methanotrophy induces nitrogen fixation during peatland development journal December 2013
Potassium limits potential growth of bog vegetation under elevated atmospheric CO 2 and N deposition: K-LIMITS BOG GROWTH UNDER ELEVATED CO 2 and N journal September 2002
Tundra shrubification and tree-line advance amplify arctic climate warming: results from an individual-based dynamic vegetation model journal August 2013
SPRUCE Environmental Monitoring Data: 2010-2016 dataset January 2016
Understory vegetation as a forest ecosystem driver: evidence from the northern Swedish boreal forest journal October 2005
The Sphagnum microbiome: new insights from an ancient plant lineage journal February 2016
Boreal bog Sphagnum refixes soil-produced and respired 14 CO 2 journal January 1999
Mosses and the struggle for light in a nitrogen-polluted world journal October 2004
Development of a photosynthesis model with an emphasis on ecological applications: II. Analysis of a data set describing theP M surface journal January 1976
Simulation of six years of carbon fluxes for a sedge-dominated oligotrophic minerogenic peatland in Northern Sweden using the McGill Wetland Model (MWM): SIMULATING CARBON FLUXES FOR A SEDGE-DOMINATED PEATLAND journal May 2013
No growth stimulation of Canada’s boreal forest under half-century of combined warming and CO 2 fertilization journal December 2016
Effect of Water Level on Desiccation of Sphagnum in Relation to Surrounding Sphagna journal December 1985
Interactive effects of water table and precipitation on net CO 2 assimilation of three co-occurring Sphagnum mosses differing in distribution above the water table journal March 2009
PEATBOG: a biogeochemical model for analyzing coupled carbon and nitrogen dynamics in northern peatlands journal January 2013
Holocene radiative forcing impact of northern peatland carbon accumulation and methane emissions journal May 2007
Effects of water level and temperature on performance of four Sphagnum mosses journal July 2006
The effect of temperature on growth and competition between Sphagnum species journal February 2008
Forecasting Responses of a Northern Peatland Carbon Cycle to Elevated CO 2 and a Gradient of Experimental Warming journal March 2018
Eleven-year responses of a boreal mixedwood stand to partial harvesting: Light, vegetation, and regeneration dynamics journal March 2008
The DOE E3SM Coupled Model Version 1: Overview and Evaluation at Standard Resolution journal July 2019
Recent climate warming forces contrasting growth responses of white spruce at treeline in Alaska through temperature thresholds journal October 2004
Measuring and modelling environmental influences on photosynthetic gas exchange in Sphagnum and Pleurozium journal June 1998
Plant Community Dynamics, Nutrient Cycling, and Alternative Stable Equilibria in Peatlands journal November 2002
Global patterns of terrestrial biological nitrogen (N 2 ) fixation in natural ecosystems journal June 1999
Elevated atmospheric CO2 and increased nitrogen deposition: effects on C and N metabolism and growth of the peat moss Sphagnum recurvum P. Beauv. var. mucronatum (Russ.) Warnst journal February 2000
Causes of variation in soil carbon simulations from CMIP5 Earth system models and comparison with observations journal January 2013
The Effects of Phosphorus Cycle Dynamics on Carbon Sources and Sinks in the Amazon Region: A Modeling Study Using ELM v1 journal December 2019
Effects of elevated CO2 and vascular plants on evapotranspiration in bog vegetation journal October 2001
Simulated projections of boreal forest peatland ecosystem productivity are sensitive to observed seasonality in leaf physiology† journal January 2019
Microtopographical and canopy cover controls on moss carbon dioxide exchange in a western Boreal Plain peatland journal January 2011
THE RESPONSE OF TUNDRA PLANT BIOMASS, ABOVEGROUND PRODUCTION, NITROGEN, AND CO 2 FLUX TO EXPERIMENTAL WARMING journal July 1998
Dimensionality Reduction for Complex Models via Bayesian Compressive Sensing journal January 2014
Effects of shrub and tree cover increase on the near-surface atmosphere in northern Fennoscandia journal January 2017
Surface vegetation controls on evapotranspiration from a sub-humid Western Boreal Plain wetland journal April 2010
Bryophyte-cyanobacteria associations as regulators of the northern latitude carbon balance in response to global change journal March 2013
A REGIONAL STUDY OF THE CONTROLS ON WATER VAPOR AND CO 2 EXCHANGE IN ARCTIC TUNDRA journal October 2003
Reduced growth of Alaskan white spruce in the twentieth century from temperature-induced drought stress journal June 2000
N2-fixation by methanotrophs sustains carbon and nitrogen accumulation in pristine peatlands journal August 2014
Climate-Growth Relationships Along a Black Spruce Toposequence in Interior Alaska journal November 2016
Bryophytes attenuate anthropogenic nitrogen inputs in boreal forests: BRYOPHYTES ATTENUATE NITROGEN DEPOSITION journal March 2011
Rapid Net Carbon Loss From a Whole‐Ecosystem Warmed Peatland journal July 2020
Climate change reduces the capacity of northern peatlands to absorb the atmospheric carbon dioxide: The different responses of bogs and fens: PEATLANDS SWITCH TO C SOURCES BY 2100 journal October 2014
Parameterization and Sensitivity Analysis of the BIOME–BGC Terrestrial Ecosystem Model: Net Primary Production Controls journal January 2000
Dynamic Vertical Profiles of Peat Porewater Chemistry in a Northern Peatland journal October 2016
S phagnum physiology in the context of changing climate: emergent influences of genomics, modelling and host-microbiome interactions on understanding ecosystem function journal December 2014
Elevated CO2 Effects on Peatland Plant Community Carbon Dynamics and DOC Production journal May 2007
How Sphagnum bogs down other plants journal July 1995
Modelling microtopography in boreal peatlands: hummocks and hollows journal July 2003
Informing climate models with rapid chamber measurements of forest carbon uptake journal August 2016
Contrasting growth responses of dominant peatland plants to warming and vegetation composition journal February 2015
Microclimate Control of Growth Rates and Habitats of the Boreal Forest Mosses, Tomenthypnum nitens and Hylocomium splendens journal March 1978
McGill wetland model: evaluation of a peatland carbon simulator developed for global assessments journal January 2010
Variations in net ecosystem exchange of carbon dioxide in a boreal mire: Modeling mechanisms linked to water table position journal January 2007
On the relationship between water table depth and water vapor and carbon dioxide fluxes in a minerotrophic fen: FEN WATER TABLE DEPTH AND ATMOSPHERIC FLUXES journal July 2009
Effects of bryophyte and lichen cover on permafrost soil temperature at large scale journal January 2016
Temporal and Spatial Variation in Peatland Carbon Cycling and Implications for Interpreting Responses of an Ecosystem-Scale Warming Experiment journal January 2017
A Key and Review of Bryophytes Common in North American Peatlands journal December 2014
Global patterns and controls of soil organic carbon dynamics as simulated by multiple terrestrial biosphere models: Current status and future directions: MODELING GLOBAL SOIL CARBON DYNAMICS journal June 2015
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
Carbon dioxide and water vapour exchange from understory species in boreal forest journal June 2004
An observational constraint on stomatal function in forests: evaluating coupled carbon and water vapor exchange with carbon isotopes in the Community Land Model (CLM4.5) journal January 2016
Towards a more detailed representation of high-latitude vegetation in the global land surface model ORCHIDEE (ORC-HL-VEGv1.0) journal January 2017
Photoinhibition as a control on photosynthesis and production of Sphagnum mosses journal November 1993
The Ecology of Sphagnum book January 1982
Increased plant growth in the northern high latitudes from 1981 to 1991 journal April 1997
Changes in vegetation in northern Alaska under scenarios of climate change, 2003–2100: implications for climate feedbacks journal June 2009
Vascular plant species response to warming and elevated carbon dioxide in a boreal peatland journal December 2020
An improved representation of physical permafrost dynamics in the JULES land-surface model journal January 2015
Controls on moss evaporation in a boreal black spruce forest journal April 2004
Modelling Tundra Vegetation Response to Recent Arctic Warming journal July 2012
The resilience and functional role of moss in boreal and arctic ecosystems: Tansley review journal August 2012
Global peatland dynamics since the Last Glacial Maximum: GLOBAL PEATLANDS SINCE THE LGM journal July 2010
Persistent high temperature and low precipitation reduce peat carbon accumulation journal May 2016
Integrating peatlands into the coupled Canadian Land Surface Scheme (CLASS) v3.6 and the Canadian Terrestrial Ecosystem Model (CTEM) v2.0 journal January 2016
Representing northern peatland microtopography and hydrology within the Community Land Model journal January 2015
Recent Widespread Tree Growth Decline Despite Increasing Atmospheric CO2 journal July 2010
The Sensitivity of Moss-Associated Nitrogen Fixation towards Repeated Nitrogen Input journal January 2016
Uncertainty in Peat Volume and Soil Carbon Estimated Using Ground-Penetrating Radar and Probing journal January 2012
Physiological and environmental regulation of stomatal conductance, photosynthesis and transpiration: a model that includes a laminar boundary layer journal April 1991
Attributing physical and biological impacts to anthropogenic climate change journal May 2008
Transport of Carbon and Phosphorus Compounds about Sphagnum journal June 1989
Transfer of fixed-N from N2-fixing cyanobacteria associated with the moss Sphagnum riparium results in enhanced growth of the moss journal May 2012
Effects of climatic variability on the annual carbon sequestration by a boreal aspen forest journal January 1999
Consistent negative temperature sensitivity and positive influence of precipitation on growth of floodplain Picea glauca in Interior Alaska journal March 2012
CO 2 and CH 4 exchanges between land ecosystems and the atmosphere in northern high latitudes over the 21st century journal January 2006
Sensitivity of the carbon cycle in the Arctic to climate change journal November 2009
Spatio-temporal trends of nitrogen deposition and climate effects on Sphagnum productivity in European peatlands journal April 2014
The Cooling Capacity of Mosses: Controls on Water and Energy Fluxes in a Siberian Tundra Site journal July 2011
Integrating peatlands and permafrost into a dynamic global vegetation model: 1. Evaluation and sensitivity of physical land surface processes: PEATLANDS AND PERMAFROST IN LPJ, 1 journal August 2009
N2 Fixation in Feather Mosses is a Sensitive Indicator of N Deposition in Boreal Forests journal June 2012
The Bryosphere: An Integral and Influential Component of the Earth’s Biosphere journal May 2010
Scaling functional traits to ecosystem processes: Towards a mechanistic understanding in peat mosses journal December 2018
Boreal peatland C fluxes under varying permafrost regimes journal July 2002
Contrasting Water Relations of Photosynthesis for Two Sphagnum Mosses journal October 1983
Minor Changes in Vegetation and Carbon Gas Balance in a Boreal Mire under a Raised CO2 or NH4NO3 Supply journal January 2003
Rapid loss of an ecosystem engineer: Sphagnum decline in an experimentally warmed bog journal October 2019
Estimating global carbon uptake by lichens and bryophytes with a process-based model journal January 2013
A new model of Holocene peatland net primary production, decomposition, water balance, and peat accumulation journal January 2010
Future changes in vegetation and ecosystem function of the Barents Region journal December 2007
Comparative Cryptogam Ecology: A Review of Bryophyte and Lichen Traits that Drive Biogeochemistry journal May 2007
The DOE E3SM v1.1 Biogeochemistry Configuration: Description and Simulated Ecosystem‐Climate Responses to Historical Changes in Forcing journal September 2020
Present state of global wetland extent and wetland methane modelling: methodology of a model inter-comparison project (WETCHIMP) journal January 2013
Fire as the dominant driver of central Canadian boreal forest carbon balance journal November 2007
A biochemical model of photosynthetic CO2 assimilation in leaves of C3 species journal June 1980
Growth, production and interspecific competition in Sphagnum: effects of temperature, nitrogen and sulphur treatments on a boreal mire journal August 2004
Production and microtopography of bog bryophytes: response to warming and water-table manipulations journal August 2001
Boreal Peatland Ecosystems book January 2006
Model diagnostics of variations in methane emissions by wetlands in the second half of the 20th century based on reanalysis data journal November 2007
Plant functional types define magnitude of drought response in peatland CO 2 exchange journal January 2014
The Impact of Parametric Uncertainties on Biogeochemistry in the E3SM Land Model journal February 2018
Unstable climate−growth relations for white spruce in southwest Yukon, Canada journal May 2012
Coupling boreal forest CO2, H2O and energy flows by a vertically structured forest canopy – Soil model with separate bryophyte layer journal September 2015

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