摘要
针对快速城市化进程产生的城市热岛效应,该文基于Landsat 8影像,采用地理信息系统(GIS)空间分析以及相关性分析等方法探究了乌鲁木齐中心城区14个公园对周围热环境的降温效应。结果表明,公园内部的低温区域分布广泛,形成了显著的冷岛效应;所有公园对周围的热环境均存在降温效应,但不同公园的降温幅度和降温范围不同,平均降温幅度为7.44℃,最佳降温范围为200 m;公园内部平均温度与公园形态呈不显著相关性,水体面积与公园内部平均温度和降温范围相关性最显著,绿地面积与降温幅度相关性最显著。研究发现公园是缓解干旱区城市热岛效应的有效措施,为优化西部干旱区城市公园景观格局提供了参考。
In view of the urban heat island effect caused by rapid urbanization,based on Landsat 8 images,GIS spatial analysis and correlation analysis were used to explore the cooling effect of 14 urban parks in Urumqi city center on the surrounding thermal environment.The results showed that the low temperature areas in the park were widely distributed,forming a significant cold island effect;All parks had a cooling effect on the surrounding thermal environment,but the cooling amplitude and cooling range of different parks were different,the average cooling amplitude was 7.44℃C,and the optimal cooling range was 200 m;There was no significant correlation between the average temperature and the shape of the park,the area of water body was the most significantly correlated with the average temperature and cooling range of the park,and the green space area was the most significantly correlated with the cooling amplitude.The study found that parks were an effective measure to alleviate the urban heat island effect in arid areas,and provided a reference for optimizing the landscape pattern of urban parks in arid areas in western China.
作者
杜凯丽
范家喻
陈学刚
DU Kaili;FAN Jiayu;CHEN Xuegang(School of Geographical Science and Tourism,Xinjiang Normal University,Urumqi 830054,China;Xinjiang Key Laboratory of Lake Environment and Resources in Arid Zone,Urumqi 830054,China)
出处
《测绘科学》
CSCD
北大核心
2024年第4期168-176,共9页
Science of Surveying and Mapping
基金
新疆维吾尔自治区自然科学基金资助项目(2022D01A212)。
