A study on the strategies of Park City construction of Chengdu from the perspective of urban heat island mitigation

In the process of urbanization, various urban problems have become increasingly prominent, and heat island effect is one them. The expansion land, increase in construction intensity population make even worse. park cities improves ecological environment city considered to a positive on alleviating effect, but it not clear whether has such an or not. This article explores Park City can help improve thermal effectively, also, seek solutions for how so that be better mitigated. Landsat8 remote sensing images 2014 2019 were used estimate fractional vegetation cover (FVC) land surface temperature (LST) Third Ring Road Chengdu. Land use data also introduced into study analyze LST changes different surfaces FVC.The results indicate that: (1) area zone Chengdu decreased by 0.91% from 2019, cold increased 17.89% ; (2) blue-green space conductive mitigating which water provides best mitigation, while impervious bare may aggravate effect; (3) FVC rise as whole, there significant negative correlation between (p < 0.01). Based above results, this paper shows beneficial alleviate more attention should paid layout quality, along with ventilation control. Our provide useful input green planning future.