Climate actions
Changing climatic conditions will need to be paralleled by appropriate infrastructure and resources for regeneration, including the availability of genetically diverse material coming from seed orchards and nurseries. The results of many provenance trials have not been published and data are not readily available: a concerted effort must be made in support of restoration efforts to locate information and make it available in a form that is relevant to restoration practitioners.
Increase diversity of nursery stock to provide those species or genotypes likely to succeed
Objective
Maintain ecosystem function and diversity.
Description
Selecting good nursery stock and providing adequate planting conditions are very important practices to maximize ecosystem services, especially in street tree plantations. In sites with low to intermediate levels of degradation, where soils are largely intact and there are enough germplasm sources for the next generation (e.g., mature trees or a soil seed bank), natural regeneration may be the best choice. This bypasses some of the risks associated with introducing germplasm, by promoting the maintenance of genetic integrity and the recruitment of well-adapted seedlings.Expected results
Providing an array of species and genotypes that can both meet short-term demand for traditional species and enable long-term adaptation.
Result indicators
Number of species in the nursery stock.
Involved actors
Natural manager, farmer, nurseryman.
Expected timeline for action
Best practices
Criticalities
Scope of the action
Type of proposed actions
Sector of action
Climate impacts
Implementation scale