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Home → Publications → Climate Change / Assisted Migration → A provisional tree seed-zone and cone-crop rating system for Arizona and New Mexico

A provisional tree seed-zone and cone-crop rating system for Arizona and New Mexico

Government Document
Transfer Guideline

Southwestern USA

The forested areas of Arizona and New Mexico were divided into 10 physiographic-climatic regions. These regions were then subdivided into five to nine seed collection zones about 50 miles wide. Provenance tests will be conducted to determine variation and need for adjustments. Seed used for reforestation should be limited to that collected within the local zone. A 10-unit classification system for rating cone crops is included.

http://search.library.wisc.edu/catalog/ocm05165931