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Vegetation has been considered as an effective strategy to combat the urban heat island effect. Most researches have focused on evaluating the cooling effect of trees in the urban thermal environment. Little attention has been paid to the cooling effect of the combination of different vegetation elements. Moreover, most studies are focused on the horizontal cooling performance of plants, while fewer studies have investigated the vertical cooling effect of vegetation. Therefore, this study evaluates the 3D (horizontal and vertical) cooling performances of the three vegetation combination scenarios in the urban area using the ENVI-met model. The study indicates that the tree-grass (TG) combination has the best 3D cooling effect, followed by the tree-shrub-grass (TSG) combination, while the shrub-grass (SG) combination has the weakest 3D cooling effect. Among them, the 3D cooling effect of TG and TSG is significantly better than that of SG, while no big differences are noticed between the cooling effects of TG and TSG. Besides, it is economical to plant TSG combinations because fewer trees are needed than planting TG combinations. Therefore, the study recommends the tree-shrub-grass combination rather than TG or SG combination in urban areas to effectively improve the thermal environment. The study also shows that the relationship between increasing tree coverage and the resulting cooling effect is not linear. The results of this study can effectively guide the design of greening strategies in urban areas to improve thermal comfort.

In order to study the suitability of rural tourism development and prevent the blind development of rural tourism, we have identified 12 evaluation indicators of natural resources and human resources from three aspects: tourism resources, current development intensity and village development potential. Using AHP and fuzzy evaluation method to quantitatively analyze the various elements of rural tourism development, and evaluate the suitability of village development tourism industry.

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Abstract. Geographic Information System (GIS) is a comprehensive spatial data processing technique, of which fundamental meaning, function, background and developing process are introduced in the paper. It is reviewed and emphasized that GIS has been applied to forestry industry fully and systematically in recent years as following: information management, operating optimized decision, classified management division, sample design, thematic mapping, cutting plan, afforestation planning programming, protection, resource administration net GIS, precision forestry. Also the further study and development are discussed finally