N2: Forest Continuity Indicator — indicator_naturalness

Calculates forest continuity using BD Foret (current forest cover) and optionally BD Foret Anciennes (historical forest from ~1850). Follows tuto 04: - Ancient forest (>0 - Recent forest (current cover but not ancient): score = 30 + 30 * taux_boisement - No forest: score = 15

Usage

indicator_naturalness_continuity(
  units,
  bdforet = NULL,
  foret_ancienne = NULL,
  layers = NULL,
  column_name = "N2",
  lang = "en"
)

Arguments

units: sf object (POLYGON) of spatial units to assess
bdforet: sf object. Current forest cover (BD Foret V2). NULL = default score 50.
foret_ancienne: sf object. Historical forest cover (~1850). NULL = only use bdforet.
layers: nemeton_layers object. Used to resolve bdforet if not provided directly.
column_name: Character. Name for output column. Default "N2".
lang: Character. Message language. Default "en".

Value

sf object with added column N2 (score 0-100)