20 1 1 Xi The theme slogan of the World Horticultural Exposition is

Theme: Heaven and Man Chang 'an? Creating Nature —— Harmony between City and Nature

Interpretation: "Heaven" refers to nature and "people" refers to cities. "Chang 'an" is the historical name of Xi 'an, an ancient capital with a thousand years, and it is also a symbol of the country's prosperity and antai. "Chang 'an between Heaven and Man" is the natural harmony of the city; "Creating nature" means using and restoring nature to serve mankind on the premise of respecting nature and not destroying it.