论文题目:

Impact of urban expansion on land surface temperature in Fuzhou, China using Landsat imagery

英文论文题目:

Impact of urban expansion on land surface temperature in Fuzhou, China using Landsat imagery

第一作者:

杜嘉

英文第一作者:

Du, Jia

联系作者:

杜嘉

英文联系作者:

Du, Jia

发表年度:

2020

卷:

61

页码:

102346

摘要:

Seven Landsat images were used to assess urban expansion and the corresponding thermal characteristics in Fuzhou City, China between 1985 and 2015. The urban surface thermal patterns were investigated by retrieving land surface temperature using a single-window algorithm based on atmospheric calibration. The built-up area doubled from 1985 (10.6 %) to 2015 (23.4 %), mostly from cropland conversions in the urban fringe, and was closely associated with population increase (R2?=?0.93), gross domestic production GDP (R2?=?0.97), and fixed asset investments (R2?=?0.9139), illustrating the contributions of socioeconomic factors to rapid urban expansion. The daytime heating effect (heat source) in urban areas was strongly related to urban expansion, with a high percentage of an impervious surface usually associated with a high surface temperature. The average range over which wetlands affected built-up area, farmland, and road was 381, 321, and 347?m, respectively. The area of influence on construction land and road was 151 and 11 km2, respectively, whereas the average value for farmland was 147?km2. The area of wetland influence decreased during the study period, and therefore one explanation for the increase in the urban heat island (UHI) in Fuzhou City was the weakened cooling effect of wetland.

英文摘要:

Seven Landsat images were used to assess urban expansion and the corresponding thermal characteristics in Fuzhou City, China between 1985 and 2015. The urban surface thermal patterns were investigated by retrieving land surface temperature using a single-window algorithm based on atmospheric calibration. The built-up area doubled from 1985 (10.6 %) to 2015 (23.4 %), mostly from cropland conversions in the urban fringe, and was closely associated with population increase (R2?=?0.93), gross domestic production GDP (R2?=?0.97), and fixed asset investments (R2?=?0.9139), illustrating the contributions of socioeconomic factors to rapid urban expansion. The daytime heating effect (heat source) in urban areas was strongly related to urban expansion, with a high percentage of an impervious surface usually associated with a high surface temperature. The average range over which wetlands affected built-up area, farmland, and road was 381, 321, and 347?m, respectively. The area of influence on construction land and road was 151 and 11 km2, respectively, whereas the average value for farmland was 147?km2. The area of wetland influence decreased during the study period, and therefore one explanation for the increase in the urban heat island (UHI) in Fuzhou City was the weakened cooling effect of wetland.

刊物名称:

Sustainable Cities and Society

英文刊物名称:

Sustainable Cities and Society

参与作者:

XiaoyunXiang；BoyuZhao；HaohaoZhou

英文参与作者:

XiaoyunXiang；BoyuZhao；HaohaoZhou