Mortality in Cutover Stands of Ponderosa Pine

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Mortality of ponderosa pine in the Southwest has been studied for almost 30 years. It has been found that the most important agencies responsible for the death of trees are wind, lightning, mistletoe, and insects. As might be expected, the rate of mortality appears to be highest in trees of the largest diameter. After the trees reach a diameter of about 23 inches there is a comparatively rapid increase in mortality rate and on cutover areas the average annual loss of trees 30 inches and over in diameter is about 1 percent. Thus, if appreciable returns are to be realized from large trees, continual salvage operations are called for.

Document Type: Journal Article

Affiliations: Southwestern Forest and Range Experiment Station

Publication date: May 1, 1939

More about this publication?
  • 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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