History of plant landscaping in Chengdu City was reviewed,and divided into 4 periods:① Primary development period from 1949 to 1978.Traditional memorial gardens were renovated and expanded during this period,many parks and street-side green spaces were constructed,such as Memorial Temple to Military Marquise Zhuge Liang,Guihu Park and Thatched Cottage of Du Fu;② Breaking-constraint period from 1979 to 1989.Classical gardens destroyed during the Great Cultural Revolution were repaired and expanded,green space planning was first compiled,garden styles combining local and modern features were explored,such as botanic garden,amusement park,Taizishan Park and Baihuatan Park;③ Rejuvenation period from 1989 to 1999.The city loop green belts along Funan River was formed,and the new edition of Green Space System Planning of Chengdu City was finished in 1996,representative works were Shudu Avenue,City Loop Park of Funan River,Xinhua Park,Huoshui Park and so on;④ The new beginning of this old undertaking since 2000.Relatively mature green space planning concepts were formed by considering the balanced urban-rural development with "building a garden city" as the target,representative works of this period were Huanhuaxi Park,Shahe Zonal Park,Sanshenghuaxiang,Beihu Forest Park,Intangible Heritage Park,Jinsha Ruins Park,Donghu Park,green belts along the Third Ring Road,road landscapes along the South Renmin Road.Characteristics of plant landscapes in Chengdu were discussed from 2 perspectives:natural characteristics and cultural characteristics.Plant landscaping in 4 types of land uses was analyzed:park green spaces,green spaces in residential areas,road green spaces,green spaces in scenic areas;corresponding suggestions were given for the construction,and it was stressed that exploring local natural and cultural characteristics was the demand of times and the development direction of this industry.
The paper had analyzed the necessity and feasibility for the protection and utilization of urban ecologically sensitive areas, proposed planning urban ecologically sensitive areas reasonably and combining ecological protection with development construction. Guiding the healthy and ordered development of urban spaces was the key part and important approach to realize ecological cities. The guiding thought for development construction of ecological cities had been discussed, which was conducting laddered development according to the location and coverage of urban ecologically sensitive areas and protection grades of these sensitive areas. Then, it had proposed four kinds of protection and construction modes, which were tourism leisure green lands, relevant expositions, industrial areas and new city groups, and which had been analyzed by combining with successful cases, so as to provide feasible win-win development strategies of ecology and economy for the planning of urban ecologically sensitive areas in the future.
