Environ. Sci. Technol. (if=9.028) | impact of urban greening on atmospheric environment

https://doi.org/10.1021/acs.est.1c07814

Greening can not only regulate the atmospheric temperature and humidity in the city , Its carbon sequestration is very important to the construction “ Carbon neutral cities ” It is also of great significance . Although greening is often an important way to alleviate urban climate problems and improve environmental comfort , However, its ozone precursors may also worsen urban air quality . At this stage , It is urgent to carry out systematic research on the impact of urban greening .

Atmospheric sub center Tangguiqian's research team , China Academy of Meteorological Sciences Yu Miao, associate researcher , Ecological center of Chinese Academy of Sciences Researcher zhouweiqi cooperation , Use high-resolution regional climate and air quality models （WRF-Chem） The land use change and plant volatile organic compounds caused by urban greening in North China were quantified （BVOC） The respective effects of emissions on regional climate and air quality . Studies have shown that , Urban greening can effectively reduce the near surface temperature （0.45℃）, Improve human comfort . meanwhile , Under the current scenario of anthropogenic emission sources , Emission from urban greening BVOC Does not change ozone generation sensitivity , Regional climate change caused by urban greening （ The temperature drops 、 Humidity increase 、 Boundary layer lowering ）, Drive ozone generation from NOx Sensitivity turns to VOC sensitive . This study reveals the comprehensive impact of urban greening on regional climate and air quality , It is emphasized that the prevention and control of ozone pollution in the future should comprehensively consider land cover 、 The complex relationship between climate and precursor emissions .

The above research results are published in Environmental Science & Technology On , It was jointly funded by the national key R & D plan and the pilot project of the Chinese Academy of Sciences .

Paper information ：

Yu, M., Zhou, W., Zhao, X., Liang, X., Wang, Y., and Tang, G.*, Is urban greening an effective solution to enhance environmental comfort and improve air quality? Environ. Sci. Technol., 2022.

Thesis link ：https://pubs.acs.org/doi/full/10.1021/acs.est.1c07814

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