Innovative Agroforestry systems

34 Pages·2012·3.33 MB·English

Renovation & Innovation in Canadian
Windbreaks

John Kort
Agroforestry Researcher
AAFC Agroforestry Development Centre
Indian Head, Saskatchewan
Outline
• Renovation concepts
• Existing windbreaks and renovation challenges
• Innovative windbreak design
Concepts in shelterbelt renovation
• Trim (prune) or cut back (coppice or pollard)
• Control weeds, water, fertilize, control insects/diseases to
relieve stress and increase lifespan
• Design shelterbelts with multiple species. More complicated,
but more resilient
• Remove and/or re-plant within shelterbelt or add rows on the
inside or the outside
• Field shelterbelts can be renovated by adding or replacing
rows. Keep in mind the reasons for the shelterbelts - could
turn removal into renovation
Farms with Shelterbelts / Windbreaks
(Question included "natural or planted" and "buffer zones around
water bodies"
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Statistics Canada, Census of Agriculture, 2006
Agriculture and Agriculture et
Agri-Food Canada Agroalimentaire Canada
Prairie windbreaks - planted
Roadside
Farmyard
Field
Green ash/Scots pine - Saskatchewan
Manitoba field windbreaks
Natural aspen shelterbelt in Saskatchewan and its understory
Natural windbreak in southern Ontario
Planted eastern red cedar windbreak in southern Ontario