基于WRF模式的长株潭城市群绿心通风 廊道规划策略研究

在全球气候变暖和快速城镇化背景下，城郊自然开放空间在被城市空间替代的过程中，城市绿地面积的减少引发了一系列的气候和环境问题。而构建通风廊道可以通过提升城市通风能力有效缓解热岛效应和雾霾现象，近年来已成为各领域的研究热点。作为风景园林师，从改善城市风环境角度出发，在宏观层面的空间规划中考虑通风廊道构建方案，提升城市在发展过程中应对气候变化的能力，为创造健康舒适的人居环境创造有利条件。以长株潭城市群绿心为研究对象，采用WRF模式定量分析典型天气条件下绿心空间布局变化对城市群风场产生的影响，在此基础上分析绿心的自然通风潜力并提出相应的规划策略。研究成果可为充分挖掘城市开放空间的通风性能和城市通风廊道规划提供科学指引。

Landscape Design Strategy of Ventilation Corridor in the Green Heart of CZT Urban Agglomeration Based on WRF Model

In the context of global warming and rapid urbanization, the reduction of green infrastructure in the process of suburban natural open space replaced by urban space has triggered a series of climate and environmental problems. The construction of ventilation corridors can effectively alleviate the urban heat island effect and smog by improving the ventilation capacity of the city. In recent years, it has become a research hotspot for scholars in various fields. As a landscape architect, from the perspective of improving urban wind environment, considering the ventilation corridor construction plan spatial planning stage in mesoscale will enhance the city''s ability to cope with climate change during the development process and provide favorable conditions for creating a healthy and comfortable living environment. Taking the green heart of Changsha, Zhuzhou and Xiangtan urban agglomeration as an example, this paper uses WRF model to quantitatively analyze the influence of the spatial distribution of green heart on the wind field of urban agglomeration under typical weather conditions and propose corresponding optimization strategies. The research results provide scientific guidance for fully exploiting the ventilation performance of urban open spaces and rational planning of urban ventilation corridors.