English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

. Mosses need to be incorporated into Earth system models to better simulatepeatland functional dynamics under the changing environment. Sphagnum mosses are strongdeterminants of nutrient, carbon, and water cycling in peatland ecosystems.However, most land-surface models do not include Sphagnum or other mosses asrepresented plant functional types (PFTs), thereby limiting predictiveassessment of peatland responses to environmental change. In this study, weintroduce a moss PFT into the land model component (ELM) of the EnergyExascale Earth System Model (E3SM) by developing water content dynamics andnonvascular photosynthetic processes for moss. The model was parameterizedand independently evaluated against observations from an ombrotrophicforested bog as part of the Spruce and Peatland Responses Under ChangingEnvironments (SPRUCE) project. The inclusion of a Sphagnum PFT with some Sphagnum-specificprocesses in ELM allows it to capture the observed seasonal dynamics ofSphagnum gross primary production (GPP) albeit with an underestimate of peak GPP.The model simulated a reasonable annual net primary production (NPP) formoss but with less interannual variation than observed, and it reproduced aboveground biomass for tree PFTs and stem biomass for shrubs. Different speciesshowed highly variable warming responses under both ambient and elevatedatmospheric CO2 concentrations, and elevated CO2 altered thewarming response direction for the peatland ecosystem. Microtopography iscritical: Sphagnum mosses on hummocks and hollows were simulated to show oppositewarming responses (NPP decreasing with warming on hummocks but increasingin hollows), and hummock Sphagnum was modeled to have a strong dependence on watertable height. The inclusion of this new moss PFT in global ELM simulations mayprovide a useful foundation for the investigation of northern peatlandcarbon exchange, enhancing the predictive capacity of carbon dynamics acrossthe regional and global scales.

biogeosciences

Extending a land-surface model with &amp;lt;i&amp;gt;Sphagnum&amp;lt;/i&amp;gt; moss to simulate responses of a northern temperate bog to whole ecosystem warming and elevated CO&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt;