Skip to Main Content
Forest tree improvement in California-1970Author(s): M. Thompson Conkle
Source: Res. Note PSW-RN-275. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest and Range Experiment Station. 4 p
Publication Series: Research Note (RN)
Station: Pacific Southwest Research Station
PDF: View PDF (552 KB)
DescriptionForesters in California were surveyed in 1970 to determine the extent of artificial regeneration and tree improvement efforts in the State. Seeding of Douglas-fir was the prevailing practice in the North Coast. Inland areas were being planted with conifers, including ponderosa, Jeffrey, Monterey, and sugar pines, Douglas-fir, and red and white firs. Manpower devoted to tree improvement programs amounted to 8.7 man-years. It was being used chiefly to select superior trees and to establish seed orchards of Douglas-fir and ponderosa and sugar pines. These tree improvement efforts fall far short of that required to study and improve California's timber resources.
- You may send email to email@example.com to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationConkle, M. Thompson 1972. Forest tree improvement in California-1970. Res. Note PSW-RN-275. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest and Range Experiment Station. 4 p
Keywordstree improvement, Pinus ponderosa, Pseudotsuga menziesii, Abies spp., California, artificial regeneration, superior trees, seed orchards
- Postfire survival and flushing in three Sierra Nevada conifers with high initial crown scorch
- Natural regeneration in relation to environment in the mixed conifer forest type of California
- Changes in forest species composition and structure after stand-replacing wildfire in the mountains of southeastern Arizona
XML: View XML