Effects of mature shelterbelts on microclimate and crop yield
Date
1990-02-22
Authors
Kowalchuk, T.E.
de Jong, E.
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A study was conducted at Conquest, Saskatchewan, to assess the effects of mature caragana (Caragana arborescens Lams.) shelterbelts on soil moisture, potential evaporation, wind speed, and crop yield. Snow trap near the shelterbelts increased spring soil moisture contents, in the immediate area near the shelterbelts, by as much as 25 % above average field values. Potential evaporation and and wind speed between the belts was reduced by as much as 23 and 36 %, respectively. However, increased spring moisture, reduced evaporation and wind speed failed to produce significant yield differences as a function of distance from the shelterbelts. Severe moisture stress was the main factor limiting crop yield at the study site.
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Soils and Crops Workshop