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# afforestation research
# Afforestation in Europe
# Afforestation in Asia
# Afforestation and the environment
# Afforestation in North America
# Afforestation in Slovakia
# Afforestation in the United States
# afforestation
# Afforestation cleaning
# Research centers and training institutes
# Research and training institutes
# Research institutes in Africa
# Forestry Tools
# Reforestation
# Deforestation and Reforestation
# Environmental Studies and Forestry
# economic research institutes
# international research institutes
# Research institutes in Germany
# Research institutes in Japan
