期刊论文

中文

环境科学与管理

1674-6139

2024

49

07

61-66

10.3969/j.issn.1673-1212.2024.07.014

本校为第一机构

由于城市化快速发展,致使城市热岛成为重要的城市生态环境问题之一.以衡阳市主城区为研究区,利用辐射传输方程法、均值-标准差、标准差椭圆分析和相关分析等方法,分析了2000 年-2021 年的地表温度和热岛效应的时空变化,并研究了NDVI指数与地表温度的相关性.结果表明:地表温度在 2000 年-2021 年间高温集中分布在中心城区的湘江两岸,但随着时间的推移,逐渐向四周扩散;热岛分布存在三个时间段的规律性,以2004 年、2009 年为时间分割点;热岛的标准差椭圆的面积在扩大,且重心向西南方向移动;NDVI指数与地表温度呈现出明显的负相关关系.

Due to the rapid development of urbanization,urban heat island has become one of the important urban ecological environ-ment problems.Taking the main urban area of Hengyang City as the research area,the spatial and temporal changes of surface tempera-ture and heat island effect from 2000 to 2021 were analyzed by means of radiation transfer equation method,mean-standard deviation,standard deviation ellipse analysis and correlation analysis,and the correlation between NDVI index and surface temperature was studied.The results show that:The surface temperature was concentrated on both sides of th...