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探索中国的土地使用/土地覆盖和表面温度之间的关系 (1996-2020年):对城市规划的影响

Han Ding¹, Qiuru Ren¹, Chengcheng Wang¹

¹College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China.

Scientific reports

|February 8, 2024

概括

空气温度 (AT) 和表面温度 (AP) 的上升会影响健康. 这项研究将城市土地使用变化与中国的AP变化联系起来,确定了城市规划改善热舒适度的"最不适合曲线".

科学领域:

环境科学环境科学
城市规划城市规划
气候变化研究气候变化研究

背景情况:

空气温度 (AT) 和表面温度 (AP) 的上升带来了严重的健康风险.
中国的快速城市化和全球气候变化需要了解城市土地使用/土地覆盖 (LULC) 对AP的影响.

研究的目的:

在中国各地调查AT和AP的空间和时间模式.
在中国主要城市地区分析AT,AP和LULC之间的关系.
通知城市LULC规划,以提高热舒适度.

主要方法:

利用来自全国834个气象站的数据 (1996-2020年).
检查了AT和AP变化及其空间相关性.
在30个主要城市核心探索了AT,AP和LULC之间的连接.
确定了一个二变二次函数,将温度差 (ΔT) 与Wa_ratio和Ar_ratio相关联.

主要成果:

虽然AT和AP的空间相似性很高,但AP的差异较大.
确定了具有显著的AT-AP差异的特定地区.
高的AP变化率覆盖了比AT更广泛的空间范围.
确定了一个"最不适合的曲线" (LSC),表明最佳的LULC规划应该避免它.

结论:

城市LULC显著影响明显的温度变化.
调查结果强调需要考虑与已确定的LSC相关的LULC规划.
建议支持通过知情规划提高城市居民的热舒适度.

关键词:

表面温度是指表面温度的温度.在LULC变更时,LULC变更.热舒适度可以提供热舒适度.城市规划是城市规划.

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