eudr-active-farming

○unverified

Per-parcel EUDR due-diligence signal: is each field actively farmed (seasonal NDVI cycle present) or recently cleared / deforested (anomalous change vs a baseline year)? The recipe runs a two-stage gate over Fields of the World parcel boundaries. Stage 1 is an active-cropland gate: harmonic_fit amplitude of the NDVI time series distinguishes seasonally cropped land (strong annual swing) from cleared or idle parcels (flat/anomalous). Stage 2 is a change signal: change_detection against a user-defined baseline window flags parcels where vegetation has declined since the reference year, consistent with recent clearing. Per-field zonal_stats collapses both signals to one row per FTW parcel — the table the compliance workflow consumes. The approach is grounded in Boryan et al. (2011) on NDVI-seasonality-based cropland mapping and Kerner et al. (2024) on learned crop-status signals; the implementation uses only declarative Folia ops so every step is inspectable and re-runnable from the same inputs.