Thinning Jack Pine in the Nebraska Sand Hills

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Two remeasurements of thinning plots in the Nebraska National Forest jack pine plantations of 1903 indicate that the heavily thinned stand with 696 trees per acre has made a gain in volume of 58 per cent compared with the unthinned stand with 2,098 trees per acre. The moderately thinned stand with 1,480 trees has made a 41 per cent gain, and the lightly thinned with 896 trees a 31 per cent gain. Both the accelerated growth and the stronger wood structure, as results of thinning, suggest the advantage of heavy thinnings to concentrate the growth on a smaller number of individual trees which will have a more nearly sufficient supply of moisture.

Document Type: Journal Article

Affiliations: Assistant Silviculturist, U. S. Forest Service, Colorado Springs, Colo.

Publication date: December 1, 1932

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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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