Operation Effects (cont)
ŘFlatten standing residue
-Transfer residue mass from standing pool to flat, ground surface pool
-Based on a flattening ratio that is a function of residue type
-Used in harvest operations to determine fraction of residue left standing after harvest
-Used in tillage and other operations involving traffic to determine fraction of residue left standing after operation
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Key point:
No residue gets flattened unless it falls by decomposition at the base of the residue or an operation is used to flatten the residue.
The flattening effect is used at harvest to determine how much of the aboveground biomass is left standing.
Only “dead” aboveground biomass can be flattened.
Flattening ratio values are based on process used to flatten and the type of residue.
Standing residue of some vegetations are more easily flattened than with other vegetations.
Based on mass.
Follow core databases.