中文摘要：

“水”作为重要的造园要素之一，对调节庭园微气候起着不可忽视的作用。本次研究期冀通过现代方法尽量真实的描述岭南庭园空间环境特征，探索岭南传统庭园中水体的微气候效应，传承蕴藏其中的生态智慧。以广东四大名园之一余荫山房为研究对象，借助微气候模拟软件ENVI—met，对其夏季热环境进行数值模拟，分析温度、湿度、风速、平均辐射温度等气候要素的空间分布特征和时间变化规律，在此基础上选用标准有效温度综合评价夏季庭园室外热环境质量。研究表明，水体在白天对庭园中近地面空气有一定的降温增湿作用，园中水体与植物相结合的空间室外热环境质量最高。故在庭园设计中重视理水的作用，可以更有效的改善夏季庭园热环境，营造舒适的室外活动场所。

英文摘要：

As one of the important elements of garden, ＂water＂ plays a significant rote on regulating the garden microclimate. By using modern methods, this paper tries to describe the characteristics of space environment in Lingnan Garden, explores the microclimate effects the water body has on traditional Lingnan Garden,trying to pass the ecological wisdom in Lingnan Garden on water design from generation to generation. Based on the 3D microclimate model ENVI-met, this paper simulates the summer thermal environment of Yu Yin Shan Fang, one of the four famous gardens in Guangdong Province, and analyzes the spatial distribution and temporal variation of climatic factors, which include temperature, humidity, wind speed and mean radiation temperature. On such basis, the study uses standard effective temperature to comprehensively evaluate the outdoor thermal environment quality of Lingnan Garden in summer. Results show that water has the function of decreasing temperature while increasing humidity in Lingnan Garden in the summer daytime.The The outdoor thermal environment quality tops where there is combination of water and vegetation. Therefore, the article concludes that water is important in the garden design process. Proper arrangement of the position and size of the water body is beneficial to improve the thermal environment condtions and create a comfortable space for outdoor activities.