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Through case studies of Japan's post-disaster reconstruction, the author thought that Wenchuan earthquake reconstruction needed to evaluate. After researched and analyzed the situation and characteristics of the city's reconstruction in three represents which are the new county seat of Beichuan, Weizhou in Wenchuan and Dujiangyan City, the author proposed 10 selected evaluation elements, in order to supply a technical reference for building evaluation system and carrying out the evaluation.

In city parks, some plants degrade seriously because of human activities and lack of sunlight.A large number of bare soils stand out against the green background and have a tremendous negative impact on cityscape,ecological environment, and residents’ health.In this study, distribution of bare soils and their areas in Mianyang wuyi square were investigated. According to the characteristics,the bare soils are divided into three categories.Some normal ways to restoring landscape and ecological effects of bare soils were also pointed out, such as organic covering, inorganic particle covering and small square construction.