Studies On Plant Landscapes Of Tourist Agricultural Garden

Sightseeing agriculture is a new kind of agricultural traveling form with the agricultural resource and the local culture which is the combination of the primary industry and the tertiary industry. As tourist agricultural garden, agriculture is considered as the main subject, and leisure entertainment and the tourism vacation is the main function. In recent years, with the rapid urbanization development and increasing requirement of urbanite tourism, the sightseeing agriculture developed very quickly Meanwhile some of tourist agricultural gardens obtained good economic, ecological and social benefits. But lack of reasonable planning guidance, there are obviously serious problems in the process of its construction and development. Recently the research done by scholars at home and abroad focused on travelling development and economic promotion of sightseeing agriculture. However there is less research on the landscape design of the plants.This research takes the plant landscapes of "Five Golden Flowers"in Chengdu, Sichuan province as an example.Based on some principles and methods of relevant disciplines, such as Landscape Dendrology, Synecology, Landscape Aestheties, etc., We attmpte to test the species composition and design of plant landscapes by the method of analyzing the present situation of the plant landscapes at "Five Golden Flowers"in Chengdu. These findings were helpful to construct tourist agricultural garden and carry out further researches in the future. The main conclusions were as follows:1.Study on Plant Species Composition of "Five Golden Flowers"in Chengdu42 plant communities in"Five Golden Flowers" in Chengdu were investigated to analyse plant species composition. The results were as follows:(1) There were 107 species of plants in "Five Golden Flowers", which belonged to 54 families. Compared with zonal plant species in Chengdu, the plant species variety was very low.(2)8 species had high application frequencies. They were Cinnamomum japonicum, Osmanthus fragrans, Ficus virens, Loropletalum chinense var.rubrum, Camellia japonica,, Chimonanthus praecox, Ligustrum quihoui, Ophiopogon japonicus.It indicated that the species variety in each plant community in "Five Golden Flowers" of Chengdu was small at present.(3) The results of study on diameter class of trees showed that the average breast-height diameter of trees in "Five Golden Flowers" of Chengdu was 15.4cm, and about 56% trees were 0-15cm breast-height diameter. It indicated that a majority of trees were young.(4) The results of study on seasonal aspect of plants showed the planting design in "Five Golden Flowers" of Chengdu had different characteristics in different seasons.2.Case Study on Plant Design of "Five Golden Flowers" of Chengdu42 plant communities in“Five Golden Flowers"of Chengdu were investigated to analyse the characteristic of plant design. The main conclusions were as follows:(1) There were 14 spot plant landscapes, and 8 spot plant landscapes with relatively independence, as the main scene of the local area. Other 6 spot plant landscapes were associated with other landscape elements. Because of small scale of the spot plant landscapes, the plant species didn’t change with the increasing of site area. Without regarding to ground cover plants, except D-9, the highest or second highest species had the largest coverage in 14 spot plant landscapes. It indicated that by the method of prominenting single species of plants to create a small area of the plant landscape was effective. The canopy density was larger than the shrub layer coverage in 12 spot plant landscapes, It indicated that in small-scale area, the main composition of plant landscape was tree layer, the shurb layer was supplement.(2) There were 5 samples located in the edge of forestry,8 samples were road green space,2 samples were waterfront green space in 15 line plant landscapes. With the increasing of width of site area, the plant species increased. There were 8 kinds of plant disposition pattern in 15 line plant landscapes. It indicated that landscape diversity of the line green space were rich in "Five Golden Flowers" of Chengdu.3 kinds of plant disposition pattern had high application frequencies, they were deciduous arbors+evergreen arbors—shurbs—herbaceous ground cover species, deciduous arbors+evergreen arbors—shurbs, deciduous arbors—shurbs—herbaceous ground cover species.(3) With the increasing of site area, the plant species didn’t increase in 13 planar plant landscapes. It indicated that there was no direct link between the plant species and site area at the scale of the planar space. The topic and function of the site decided species richness of in its area. There were not common species in 13 plant communities. There were a lot of common species between the two different communties. The similarity coefficient of community of each planar space was low, It indicated that the difference of the plant species of each sample was big. Each sample had focused on different species. The heterogeneity of plant landscape was high. The canopy density were larger than the shrub layer coverage in 9 plant communities, It indicated that in large-scale area, the main composition of plant landscape was tree layer, the shurb layer was supplement.