In order to guide the selection of seed sources adapted to a particular restoration site, maps with seed transfer zones (or seed zones) were developed.
Seed transfer zones define areas within which planting material can be moved and used with a minimal risk of maladaptation and disruption of genetic patterns.
The seed transfer zones illustrated in the map are the result of a cluster analysis based on soil and climate variables (more information on the methodology at https://doi.org/10.1016/j.foreco.2021.119127). In order to predict possible changes in the distribution of seed transfer zones under different scenarios of climate change, the current map has been projected to future climatic conditions using different climate change scenarios (the climate change scenario can be chosen by the user of the tool). If the most suitable seed transfer zone for a restoration site is expected to change in the future, it is recommended to source planting material from areas within the current seed transfer zone as well as from the seed transfer zone predicted under future conditions. The recommended seed zones are provided in the report generated by the tool.