基于地质统计学的北京通风廊道建设

Beijing Ventilation Corridor Construction Based on Geostatistics

摘要: 改善城市内部的空气质量(如雾霾、臭氧、二氧化硫等)可通过建设城市通风廊道来实现。本文通过地质统计学的普通克里金插值方法，基于北京市PM2.5浓度观测值，代表性研究东西、南北、西南–东北、东南–西北四个方向上潜在的北京市通风廊道建设线路。综合考虑地形特点，结合不同的地形和风向，使通风潜力最大化。最终给出了准确的四条通风廊道的线路走向，发现此四条线路基本均经过顺义区、海淀区、通州区。为日后城市通风廊道规划与建设提供了一些参考。

Abstract: Improving the air quality inside the city (such as haze, ozone, sulfur dioxide, etc.) can be achieved by building urban ventilation corridors. In this paper, through the ordinary Kriging interpolation method of geostatistics, based on the observation value of PM2.5 concentration in Beijing, the potential ventilation corridor construction lines in Beijing in the four directions of east-west, north- south, southwest-northeast and southeast-northwest were studied. To maximize the ventilation potential, fully consider the terrain characteristics, combined with different terrain and wind direction. Finally, the accurate line direction of the four ventilation corridors is given. It is found that these four lines basically pass through Shunyi District, Haidian District and Tongzhou District. It provides some reference for the planning and construction of urban ventilation corridors in the future.