![]() Global climate since the onset of the Holocene (Frolking and Roulet, 2007 Because of this capacity to storeĬarbon, boreal peatlands have played a critical role in regulating the Provide a useful foundation for the investigation of northern peatlandĬarbon exchange, enhancing the predictive capacity of carbon dynamics acrossīoreal peatlands store at least 500 pg of soil carbon due to the incompleteĭecomposition of plant litter inputs resulting from a combination of low The inclusion of this new moss PFT in global ELM simulations may In hollows), and hummock Sphagnum was modeled to have a strong dependence on water ![]() Warming responses (NPP decreasing with warming on hummocks but increasing Microtopography isĬritical: Sphagnum mosses on hummocks and hollows were simulated to show opposite Warming response direction for the peatland ecosystem. Showed highly variable warming responses under both ambient and elevatedĪtmospheric CO 2 concentrations, and elevated CO 2 altered the Moss but with less interannual variation than observed, and it reproduced aboveground biomass for tree PFTs and stem biomass for shrubs. ![]() The model simulated a reasonable annual net primary production (NPP) for Sphagnum gross primary production (GPP) albeit with an underestimate of peak GPP. Processes in ELM allows it to capture the observed seasonal dynamics of The inclusion of a Sphagnum PFT with some Sphagnum-specific The model was parameterizedĪnd independently evaluated against observations from an ombrotrophicįorested bog as part of the Spruce and Peatland Responses Under ChangingĮnvironments (SPRUCE) project. Nonvascular photosynthetic processes for moss. Introduce a moss PFT into the land model component (ELM) of the EnergyĮxascale Earth System Model (E3SM) by developing water content dynamics and Represented plant functional types (PFTs), thereby limiting predictiveĪssessment of peatland responses to environmental change. ![]() However, most land-surface models do not include Sphagnum or other mosses as Sphagnum mosses are strongĭeterminants of nutrient, carbon, and water cycling in peatland ecosystems. Peatland functional dynamics under the changing environment. Mosses need to be incorporated into Earth system models to better simulate ![]()
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