As an important activity of ASEM forest scientific and technological cooperation, the biennial ASEM Symposium on Urban Forestry has been held in Asian and European ASEM members and partners in turn since 2004. The First ASEM Symposium on Urban Forestry with the theme of "Social, Economic and Cultural Values of Urban Forestry" was held in Suzhou and Beijing, China from November 29 to December 3, 2004. The Second ASEM Symposium on Urban Forestry with the theme of "Urban Forestry for Human Health and Wellbeing" was held in Copenhagen, Denmark during June 28 – 30, 2006. The Third Symposium on Urban Forestry will be held in Guangzhou, China on November 12-13, 2008, with the theme of "Urban Forests and Life Quality". A pre-symposium trip to the urban forestry development in Guangzhou City will be arranged on November 11, 2008.