GROUP: annual vegetation (av)
DEFINITION: annual and herbaceous regrowth (uncultivated and unmanaged) vegetation cover (Tree cover <<10%).  Not hydromorphic (see GROUP = hydromorphic vegetation). Features must be >50% outside Disturbed area. Not managed for production or ornamentals, or grazed by domestic animals more than 25% of growing season, or impact of grazing USE is low enough that vegetation cover is similar to ungrazed areas under the same environmental conditions.  Minimum feature scale is width >30 m AND area >1000 m².  USE = Fallow, unless annually harvested for biomass across larger areas, then USE = Forestry.

1. Object
   1. herbaceous regrowth vegetation = non-woody angiosperm vegetation.
   2. ferns = mostly herbaceous fern (pteridophyte) vegetation cover, <2m height.
2. Vegetation
   1. >75% grass = >75% cover of unmanaged grass.  Example: Poa sp.
   2. >75% broadleaf = >75% cover of unmanaged broadleaf annual or herbaceous vegetation.
   3. mixed grass & broadleaf cover = mix of grass and broadleaf vegetation.

1. herbaceous regrowth vegetation
   1. >75% grass = av01
   2. >75% broadleaf = av02
   3. mixed grass = av03
2. ferns = av04

1. IF unclear whether 75% broadleaf or 75% grass choose mixed grass & broadleaf cover.
2. IF unclear whether herbaceous regrowth vegetation or ferns, choose non- herbaceous regrowth vegetation.

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USE:

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