城市公园景观绿植布置对空气污染削弱作用的预测研究

Forecast of Weakening Effect of Urban Park Landscape Planting Arrangement on Air Pollution

为解决城市空气污染不断加重的问题,提出城市公园景观绿植布置对空气污染削弱作用的预测方法。通过数值模拟方法分析地表温度的变化、污染物质量浓度,对比分析不同绿植布置方案影响下的空气污染情况。通过层次分析法构建评价指标体系,分析绿植对空气污染削弱作用的影响。预测结果表明碳密度、固碳率以及清除空气污染物在郁闭度等级范围为0.4~0.9时均跟随郁闭度的提高而提高。同时,运用对抗污染绿植、芳香绿植和抗逆性较强绿植解决城市空气污染和土壤改良的问题。

In order to solve the problem of increasing urban air pollution,a prediction method for the weakening effect of urban park landscape green plants on air pollution is proposed.The paper analyzes the changes in surface temperature and the mass concentration of pollutants through numerical simulation methods,and compare and analyze the air pollution situation under the influence of different green plant layout schemes.It constructs an evaluation index system through the analytic hierarchy process to analyze the impact of green plants on the attenuation of air pollution.The prediction results show that the carbon density,carbon sequestration rate and removal of air pollutants all increase with the increase of canopy closure when the canopy closure degree ranges from 0.4 to 0.9.At the same time,anti-pollution green plants,aromatic green plants and highly resistant green plants are used to solve the problems of air pollution and to improve soil.