Development of Focal Point Seed Zones for the Present and Future

Dr. William H. Parker explains the focal point seed zone (FPSZ) approach. FPSZ assumes that a unique set of best adapted seed sources exists for any single planting site (the focal point). Using the focal point seed zone approach, an individual site to be reforested becomes the focal point, and a unique seed procurement zone is established for that site using GIS methodology. The short-term common garden approach of Jerry Rehfeldt, showing seedling growth pattern of conifers is linked with climate of seed origin, was adapted for FPSZ basic data procurement so that seed sources adapted to hypothetical future climates may be identified and utilized in reforestation efforts.