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Shade from Brush Increases Survival of Planted Douglas-Fir

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Survival of 3-0 Douglas-fir seedlings planted in south-central New Mexico before the extremely dry spring of 1974 averaged 42 percent by the end of June. Inspection revealed that survival averaged 38 percent for seedlings having no brash competition, and 67 percent for seedlings having heavy brash competition. The shade associated with the brush, and its concurrent effect of lowering seedling transpiration stress, is the probable explanation for the increased survival. Survival averaged form 35 percent for seedlings receiving no shade to 79 percent for those receiving shade from brush all day. Shade provided by logs, snags, or other material might allow even higher survival because there would not be the soil-moisture competition that occurs with brush.

Document Type: Journal Article

Affiliations: Assistant Professor, Department of Forestry, Michigan Technological University, Houghton

Publication date: November 1, 1975

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  • The Journal of Forestry is the most widely circulated scholarly forestry journal in the world. In print since 1902, the Journal has received several national awards for excellence. The mission of the Journal of Forestry is to advance the profession of forestry by keeping forest management professionals informed about significant developments and ideas in the many facets of forestry: economics, education and communication, entomology and pathology, fire, forest ecology, geospatial technologies, history, international forestry, measurements, policy, recreation, silviculture, social sciences, soils and hydrology, urban and community forestry, utilization and engineering, and wildlife management. The Journal is published bimonthly: January, March, May, July, September, and November.
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