ESSFwc2/06 Bl Vaerlian - Oak fern

Toe slopes gullies - Bl Se forests with diverse herb layer.

Sx shows slight decline to about 75% and Bl shows slight decline to about 75%. Hw and Cw show strong increase from about 30% to 90%. Fd shows moderate increase to about 50%.

I think the model has over-promoted Cw and Hw because it does not model in extreme events which currently keep both species from occurring on 06 sites. At least the model predicts Sx and Bl will be suitable species until 2100.

No files, tests, or entry points are named. Start by locating where 06-site species predictions and extreme-event assumptions are documented; done requires a maintainer-defined change that addresses the reported over-promotion of Cw and Hw and confirms the expected Sx and Bl projections.

Written by the indexing model from the issue text.