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TBNG veg QAQC and prep description.md

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TBNG vegetation QAQC and prep

PVSAGE

  • Dates

    • Manually changed non-'date-like' values to dates. If date values were a range, took the midrange of the date range.
  • Biomass clipping

    • Removed all rows with NA's and negative values (signifying NA) for total biomass
    • Removed all rows with negative values in functional group biomass
    • Filled all empty/nA values in functional group biomass with 0's for averaging
    • Added Brome and VUOC weights together to create 'Annual Grass Weight' field
    • Created a consistent 'Forb Weight' field across all years by adding AF and PF when present
    • Created a consistent 'C4 weight' across years by adding BOBU and other C4 when present
    • Recalculated areal density of all FG weights by dividing by area
  • Pin frame