Input files for ecological modeling in interior Alaska using LANDIS-II

Boreal forests, covering about 30 percent of Earth's forested area, are dominated by coniferous forests and are crucial reservoirs of permafrost and belowground carbon. As these forests undergo ecological changes from rapid warming, questions remain about how future interactions of wildfire, vegetation, permafrost, and soil moisture will affect the long-term sustainability of permafrost. Applying the DGS (DAMM-McNiP-GIPL-SHAW) extension of the LANDIS-II landscape forest model, we simulated soil temperature and moisture, forest succession, and wildfire across 380,400 hectares in interior Alaska under moderate and high-emissions climate scenarios until the end of this century. Permafrost simulated at the near-surface (3m) thaws significantly with an average thaw rate of 13 cm/year and 18 cm/year under moderate and extreme climate forcing, changing the region's permafrost coverage from discontinuous to isolated. Climate warming, exacerbated by a changing fire regime and landscape-level shi..., , , # DGS Input Data

[https://doi.org/10.5061/dryad.hdr7sqvtr](https://doi.org/10.5061/dryad.hdr7sqvtr)

#### File: Abreu\_etal\_Alaska\_paper.zip

## Description of the data and file structure

This dataset contains the input files and datasets needed to run the LANDIS-II model simulations used in this project. This study simulates a boreal Alaskan landscape under three climate scenarios for 100 years. Within each of the climate scenario folders (Future_GFDL, Future_NCAR, Historic_NCAR) is the necessary spatial, tabular, and parameter data needed for a simulation run. Import text files include the scenario file (Dalton_scenario_DGS_[scenario]), climate file (dalton_climate), and the DGS succession input file (Dalton_DGS_Succession_AKinput_080422). In-depth methodology on how to parameterize, calibrate, and run this model and necessary extensions can be found at on the LANDIS-II website ([https://www.landis-ii.org/) ](https://www.landis-ii.org/)or the LANDIS-II Foundation GitHub homepage (...