Py expansion through central interior

**To Review:** Py expansion throughout central interior. On C4 and B2 sites. Greatest expansion of feasibility on dry sites (figure below).

Py is expanding into SBS units
SBSdw3 – near Prince George
SBSdk – near Burns Lake
SBSwk3 – north of Burns Lake
SBSmc2 – southern portion of the subzone near Tweedsmuir Provincial Park

Also ICHmc2 – near Hazelton
And IDFdw on the central coast (east side of the Coast Mountains)

*Feasibility change to E3 and is not recommended on C4 sites in SBS (e.g. SBSdw3 and SBSdk)
Interpretation = map looks like a large expansion of Py, but CCISS tool suggests it is a tertiary species and not recommended for reforestation.

*Recommended as trial species for B2 sites in SBS (e.g. SBSdw3 and SBSdk - see below)

**E.g. SBSdw3 near Prince George - SBSdw3/02 (B2)**

**E.g. SBSdk near Smithers – SBSdk/03 (B2)**

The issue names no repository files, tests, or entry points, so first identify where C4/B2 site feasibility and species recommendations are stored. Review the Py results for the listed SBS, ICHmc2, and IDFdw units with the project maintainer; done should be a confirmed, documented change or a decision that no change is needed.

Written by the indexing model from the issue text.