Declining conifer productivity will drive future forest dynamics as climate changes in Northern New England

Climate change is expected to decrease habitat suitability for conifers in the mixed species, temperate forests of New England in northeastern USA. How existing forests will be affected during the transition from current to future growing conditions, however, is less clear, and has important implications for commercially-managed forests and the growing interest in forest carbon as a natural climate solution. We used the LANDIS-II forest landscape model to simulate climate change under two Representative Concentration Pathways (RCP 4.5 and 8.5) and interactions with timber harvesting under the predominant harvest regime across 4 million hectares of managed forestland in Maine. Using a factorial design, we compared the relative and cumulative impacts of predicted changes in species’ maximum annual net primary productivity (ANPPmax) or probability of establishment (SEP) on trends in live, aboveground biomass (2010-2100). In additional to area-wide scenario comparison, we evaluated variatio..., This archive includes the input files necessary to run LANDIS-II version 7. LANDIS-II must be installed, and can be downloaded for free from the landis-ii.org website. , , # Declining conifer productivity will drive future forest dynamics as climate changes in Northern New England

[https://doi.org/10.5061/dryad.31zcrjdw6](https://doi.org/10.5061/dryad.31zcrjdw6)

## Description of the data and file structure

Input files required to run LANDIS-II.

Please note: Files are only compatible with LANDIS-II version 7.

Required files for Biomass Succession extension:

1\) biomass_succession.txt, includes values required species input parameters to run LANDIS-II Biomass Succession extension. See extension user guide for description of parameters ([https://landis-ii-foundation.github.io/Extension-Biomass-Succession/](https://landis-ii-foundation.github.io/Extension-Biomass-Succession/)).

2\) normal_dynamic.txt, includes additional species parameters. Required by biomass_succession.txt.

3\) species.txt, includes values for species life history parameters. Also includes common names corresponding to species codes.

4\) ecoregions.txt, list of ecoregion names and...