Table 4. Summary of restoration trials and experiments undertaken during the ReForLan project.


Study area Number of restoration trials established Experimental treatments examined Mean (+/- SE) early survival (%)
Veracruz 4 Land use history and site effect on mixed plantations 45% + 7 after 1 year, 35.3% + 8 after 2 years
1 Performance of species selected by local people, improved establishment techniques 60% + 8 after 17 months
Oaxaca 7 Different combinations of tree species and soil types 88% + 2, range 58-100%
Northern Argentina 1 Tree density, mixtures of different native species, use of exotics as nurse trees, vulnerability to pathogens under different treatments. Native species: <5 to 30%.
Exotic species: usually >30%.
Southern Argentina 2 Herbivory, nurse-shrub protection, seedling age Zero without nurse shrubs.
36% (± 20) under nurse shrubs without protection
47% (± 24) under nurse shrubs with protection from herbivores
Central Chile 5 Irrigation, nurse plants 47% ± 15