The Impact of Changes in Green Space Structures on Thermal Mitigation and Costs under a Constant Green Volume
发布时间：2024-08-30
点击次数：
- DOI码：
- 10.3390/f15091525
- 所属单位：
- 中南大学建筑与艺术学院
- 教研室：
- 城乡规划系
- 发表刊物：
- forests
- 刊物所在地：
- 瑞士
- 关键字：
- residential green volume; green space; thermal mitigation; Envi-met
- 摘要：
- Green space improves outdoor thermal comfort and promotes the residents’ physical and mental health. Currently, many cities are using green volume indicators to evaluate the quality of residential green space and to help form the latest evaluation standards. However, from the perspective of plant green volume, the impact of green space structures on thermal mitigation has not been emphasized. Furthermore, the cost of green space will change with the green space structures. Therefore, we evaluate the impact of changes in green space structures on thermal mitigation and costs from the perspective of plant green volume and aim to find suitable allocations of plant green volume, which balance thermal mitigation with cost savings. This study analyzed the regional climate and residential green space structures. Then, we discussed the relationship between thermal mitigation and the costs of different structures. The analytical results indicated that thermal comfort improves as the green volume of trees increases, with costs also increasing. Where the green volume exceeds 70%, no “extreme heat stress” moments occur for the whole day. When the green volume of trees increases from 20% to 60%, the thermal mitigation is 3.62 °C. However, the mitigation is only 1.74 °C when the green volume increases from 60% to 100%, which is less than half of the former, numerically. This study suggests that the green volume of trees in residential green spaces should be controlled at 60%–70% and the corresponding green volume of shrubs should be 30%– 40%. This study rationally balances the thermal mitigation and costs of residential green space, which will directly guide residential green space planning in real situations.
- 论文类型：
- 期刊论文
- 论文编号：
- Forests 2024, 15, 1525.
- 页面范围：
- 1-13
- 字数：
- 10000
- 是否译文：
- 否
- 发表时间：
- 2024-08-30