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Windthrow Impacts

Commercial Thinning
  • Crop trees should have good (less than 90) height/diameter ratios
  • Leave enough trees (usually more than 40% basal area) to maintain a canopy which prevents the wind from increasing substantially on individual residual trees. If the residual trees are at great risk, the number of residual trees may need to be higher.
Streamside Management Areas


  • branches in creek, and
  • erosion along bank,

by ensuring trees are windfirm.


Abbott Heights. Example of windthrow in a thinned stand. Show Larger Image

Streamside management areas. Show Larger Image
Forest Service BC
Forest Renewal BC