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Shade Effects in Ponderosa Pine

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Experiments in progress since 1929 have shown that ponderosa pine does not develop normally in the Southwest if overhead cover intercepts as much as half of the insolation. Side shade improves the form and is on the whole beneficial if the tree receives full sunlight from above during most of the day. Sapling and pole stands, even under dense stocking, need the side shade of larger trees in order to develop a form suitable for saw timber.

Document Type: Journal Article

Affiliations: Southwestern Forest and Range Experiment Station

Publication date: October 1, 1940

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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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