Title of the dataset:
Model setup for: "Emerging forest-peatland bistability and resilience of European peatland carbon stores"

Creators:
Ype van der Velde
ORCID 0000-0002-2183-2573

Soil Geography and Landscape, Wageningen University & Research

Contributors:

Related publication:
  "Emerging forest-peatland bi-stability and resilience of European peatland carbon stores"
  https://doi.org/10.1073/pnas/2101742118

Description:
  Summary: Peatlands are sensitive ecosystems that store carbon and water and support biodiversity. Currently European peatlands are threatened by climate change and exploitation. With this model, we show that many landscape settings may support both wetland ecosystems on thick peat soils and forest ecosystems on thin organic soils. Both ecosystems have distinctly different water-carbon dynamics that create internal positive feedbacks allowing both ecosystems to co-exist (bistability), but also to shift when critical limits are exceeded.
  Model scripts in R and input files to run the model for entire Europe. This requires almost 1,000,000 model runs of 1000Y each(5650 locations, 166 runs per location, estimated 1-5 minutes per model run, total output of around 85 Gig., not presented here)

Keywords:
  Peatland
  Water-carbon feedbacks
  Resilience

Spatial coverage:
  Europe

Temporal coverage:
  Input file of weather since 1960, model output for a 1000Y, but representing current situation.

This dataset contains the following files:
  Model script files:
   Forest-Peatland-bistability_functions.r
   Forest-Peatland-bistability.r

  Model input files:
   gridlocs_det.dat (locations with a weather input file)
   eobs3.zip (a weather input file for each location, containing "date", "Mininum daily Temp[C]", "Maximum daily temp[C]","Daily precipitation [mm/d]")
   roots.png (input graphic for visual output)
   plant.png (input graphic for visual output)

Result directory contains:
Typegrids belonging to figure 4, Van der Velde et al,. 2021:
   BlanketBog.tif        Blanket bogs
   BorealFens.tif        Boreal Fens
   Raisedbogs.tif        Raised bogs
   Raisedbogs_Sens.tif   Sensitive raised bogs
   Raisedbogs_HSens.tif  Highly sensitive raised bogs

   ThresholdInfiltration.tif: TIP in m/d
   Restoration_resistace.tif: m/d
   Critical_Flux.tif: m/d

Explanantion of variables:
  The model gives yearly time series output for
    Living aboveground Biomass [KgC/m2/Y],
    Soil organic matter [KgC/m2/Y],
    Total evapotranspiration (evaporation + transpiration) [m/Y],
    Transpiration from vegetation [m/Y]
    Yearly ET reduction because of too wet conditions [m/Y]
    Yearly ET reduction because of too dry conditions [m/Y]
    Potential evapotranspiration [m/Y]
    Precipitation [m/Y]
    Surface flows [m/Y]
    Regional groundwater flow [m/Y]
    Net primary production [KgC/m2/Y]
    Net ecosystem exchange [KgC/m2/Y]
    Litter [KgC/m2]
    Dissolved organic carbon export by water flow [KgC/m2/Y]
    Yearly average groundwater depth [m]

Methods, materials and software:
  Software: R
  Methods: Model structure and model equations presented in "Emerging forest-peatland bistability and resilience of European peatland carbon stores", httpd://doi.org/10.1073/pnas/2101742118
  Materials: Weather input (eobs3.zip) is derived and modified from https://www.ecad.eu/download/ensembles/download.php. Version downloaded in November 2015.

This dataset is published under the CC BY-NC (Attribution) license.
This license allows reusers to distribute, remix, adapt, and build upon the material in any medium or format for noncommercial purposes only, and only so long as attribution is given to the creator.