基于人体舒适度的南宁罗汉松园小气候研究

Study on Microclimate of Nanning Podocarpus Garden Based on Human Comfort

[目的]探究南宁罗汉松园的小气候,为植物主题园营造适宜的小气候环境提供理论依据。[方法]通过对南宁罗汉松园不同片区夏秋季温湿度的实地观测,分析罗汉松园的温湿度日变化特征,研究温湿度随高度的变化和不同片区的分布特点。[结果]秋季的人体舒适度整体较夏季高;不同片区中,罗汉松区整体的人体舒适度为最佳;距离地面不同高度的人体舒适度不同,但总体差别不大。罗汉松在夏秋季可有效降低空气温度,增加空气相对湿度。[结论]可据不同的季节和时间段得出最佳观赏时段及路线;可适当增加罗汉松植物与其他园林要素搭配的比例,通过营造罗汉松园小气候,增加人体舒适度,提升游客观赏园林的体验感;在植物景观规划设计中,依据小气候效益适当选择种植罗汉松植物。

[Objective]To explore the microclimate of Nanning podocarpus garden,and provide a theoretical basis for creating a suitable microclimate environment for the plant theme garden.[Method]Through the field observation of temperature and humidity in summer and autumn in different areas of Nanning podocarpus garden,the diurnal variation characteristics of temperature and humidity in Nanning podocarpus garden were analyzed,and the variation of temperature and humidity with height and the distribution characteristics of different areas were studied.[Result]The overall human comfort in autumn was more comfortable than that in summer.The overall human comfort in Podocarpus district was the best in different areas.The human comfort at different heights from the ground was different,but the overall difference was not significant.In summer and autumn,Podocarpus can effectively reduce air temperature and increase air relative humidity.[Conclusion]The best viewing time and route can be provided according to different seasons and time periods.It can also appropriately increase the proportion of plants matching with other garden elements.By creating a microclimate of Nanning podocarpus garden,it can increase the comfort level of human body and enhance the tourists'experience of viewing the garden.In the planning and design of plant landscape,the planting of Podocarpus macrophyllus was suitable according to the microclimate benefit.