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Title: Provisional tree seed zones and transfer guidelines for Alaska.
Author: Alden, John N.;
Source: Gen. Tech. Report PNW-GTR-270. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 39 p
Publication Series: General Technical Report (GTR)
Description: Four hundred and eighty-six provisional tree seed zones were delineated within 24 physiographic and climatic regions of Alaska and western Yukon Territory Estimated forest and potential forest land within altitudinal limits of tree species in Alaska was 51,853,000 hectares (128,130,000 acres) Seed transfer guidelines and standard labeling of seed collections are recommended to reduce losses from maladaptation and maintain the genetic identity and productivity of future forests in Alaska.
Keywords: alaska, seed zone, seed transfer and labeling guidelines, tree distribution, tree limit, forest area, genetic diversity, climate, physiography
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Alden, John N. 1991. Provisional tree seed zones and transfer guidelines for Alaska. Gen. Tech. Report PNW-GTR-270. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 39 p
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