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Garden plants as urban green space system, an important element of urban biodiversity and ecological garden built, plays an important role in improving the human living environment and living environment. The garden is an important part of the urban flora flora, with the rapid development of the city, garden flora more attention from researchers. Research urban vegetation and garden plants flora can build beautiful, comfortable living environment, the protection of urban biodiversity, the construction of urban ecological garden and urban landscaping provides an important basis. The paper analyzes Chongqing City garden plants vegetation, fauna composition and characteristics (including geographical elements, growth type), species richness characteristics under different environments, the results are as follows: the main city of vegetation divided into natural and artificial vegetation (including semi-natural), two major types. Natural (including semi-natural) vegetation by a group of 13 vegetation types, 19 vegetation types. Mainly distributed in Jinyun Mountain in Liangshan, Tongluoshan Moon Mountain Mountains 300 meters above sea level -450 m above the low mountain areas, as well as some of the hills hills and the valley of the two rivers-fluctuating zone. The forest vegetation Gang and irrigation from evergreen coniferous forest vegetation types Gang, evergreen broad-leaved forest, evergreen and deciduous broad-leaved forest, bamboo forest and broad-leaved shrub vegetation composition component, composed of species of Lauraceae (Lauraceae) Camellia Branch (Theaceae), the Fagaceae (Fagaceae), Gramineae (Graminaceae) the Symplocos. Branch (Symplocaceae), Rosaceae (Rosaceae), Sankoh (Moraceae) Branch plants; artificial vegetation by crops, vegetation, urban gardens , four major types of the economic forest vegetation and ecological forest vegetation composition and distribution in the urban built-up areas, the hilly farming areas, town streets and roads, the composition of species Lauraceae of Sankoh, wood sharp (Oleaceae), ginkgo Branch (Ginkgoaceae) , Gramineae the Magnoliaceae (Magnoliaceae), subjects such as Rosaceae plants. 2 the main city has a total of garden plant 198 Division, 805 case of 1985 species (species of the following units). Family composition, fewer families and single Branch on (54.04%), of Dake and King Branch occupy a certain position (15.65%). Dominant in the case of the composition, a single species, there are some, such as the genus Ficus (Ficus), Primula (Primula) large genus. Division of the geographical distribution of the type of tropical, subtropical nature of the distribution of the Branch dominant (accounting for 47.98%), the worldwide distribution and temperate nature ingredients of a certain proportion (accounted for 27.17% and 23.70%, respectively), fewer unique ingredients . Large genus of tropical nature on the type of the geographical distribution of the genus (53.48%), the temperate nature genus occupies a certain position (38.20%), unique ingredient fewer. Native plants, mainly woody plants in the dominant species composition (76.32%). Alien plants are herbaceous plants, possession of certain ingredients (23.68%) in the species composition. The geographical component of native plants to the tropical nature of ingredients (31.43%), the temperate nature ingredient, followed by (30.13%), the worldwide distribution and unique ingredients less. Alien plants to the tropical nature of ingredients as seven (22.08%), the temperate nature ingredient occupies a certain percentage (8.05%), the other introduction ingredients less. Different habitat types, the number of species in low mountain habitats up, farmland and agricultural land habitats least; advantage species number of urban districts habitats highest, riparian zone and Riparian District Health Habitat minimum; species richness index in the urban districts of Health throughout Type the highest habitats and steep cliffs habitats, followed by low mountains, farmland and farmland habitats minimum. Different green space types, the number of species to the Scenic Area Greenbelt type up the least green square type; dominant species Scenic Area Greenbelt Types overpass least Greenbelt Types; species richness index to the highest type of the park green type and Scenic Greenbelt Square greenbelt type minimum. Different land use types, the number of species in the woodland type up farmland type at least; dominant species farmland type up the waters type at least; species richness index to the highest garden type, farmland type minimum. In the central city, the transition area and the suburbs of East - West, South - North gradient analysis, the number of species in general was the central city to the suburbs increments overall species richness index was decreasing of the central city to the suburbs. Garden plants, woody plants, the number of species up Beibei District in the suburbs, the central city at least. Wild plants mainly perennial herbaceous species Beibei District in the suburbs of the largest Jiulongpo District, at least in the transition zone. Richness indices highest in the central city, Jiulongpo District lowest richness index of garden plants, Beibei District, the highest, the lowest of the central city, wild plant species richness index Yuzhong District, South Bank area and the highest in Shapingba District, Beibei District, minimum.
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