Complex sentence: The project was started in 1991 and is expected to last 40 years, with the aim of involving communities in safeguarding and creating a woodland flora for the future, and helping preserve the fast disappearing flora of British woodlands.
Split into simpler sentences: The project was started in 1991 and is expected to last 40 years. The aim of the project is to involve communities in safeguarding and creating a woodland flora for the future, and help preserve the fast disappearing flora of British woodlands.