By analyzing the conception of the system of landscape green space,its formation mechanism was discussed.It is pointed out that the motif of city image and "3 factors" affecting city green space made an evident guiding role on the formation and intention of landscape green space.The characters of patch landscape green space and linear green landscape corridor in Guangzhou were analyzed.Patch green space is of obvious hierarchy,reasonable distribution and coordinates with other elements.Its node green space can control the landscape in the reg...