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FIA managed scenarios: FIADB-derived per-state working fractions#54

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FIA managed scenarios: FIADB-derived per-state working fractions#54
holoros wants to merge 1 commit into
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feat/managed-fiadb-fractions

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@holoros

@holoros holoros commented Jun 4, 2026

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Per Aaron: drive the managed fractions from FIADB. Intensive uses planted share (STDORGCD plantations); BAU/conservation use observed harvest share; reserved land excluded. Re-applies the managed recalibration that the v0.62 CBM-ingest reverted for yc_fia. CONUS reserve +63% / harvest +62% / intensive +60%; differentiation where management is real (GA intensive +84%, ME harvest +27%). v0.62->v0.63.

The v0.62 CBM-ingest regenerated the FIA series and reverted the managed buckets to
whole-landscape rotation (ME harvest back to -55%). Re-apply the managed recalibration
to yc_fia_empirical_v1, now driven by FIADB per-state shares instead of flat constants:
harvest/conservation use the observed harvested share (membership harvest treatment),
intensive uses the planted share (STDORGCD=1, plantations only); reserved land excluded.
managed = phi*full_rotation + (1-phi)*reserve. CONUS carbon: reserve +63%, harvest +62%,
conservation +62%, intensive +60% (observed management is modest at landscape scale);
differentiation concentrates where management is real, e.g. GA intensive +84%, FL +73%
(Southern pine), ME harvest +27%. Adds ycx_mgmt_shares.R + ycx_blend_fia_datadriven.py +
the per-state share table. NOTE: this is a post-regeneration step; see scripts README.
v0.62->v0.63.
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