基于大气污染物扩散分析的生态园林绿化布局设计研究  

Ecological Landscape Greening Layout Design Based on Air Pollutant Diffusion Analysis

作　　者：张洪祥[1] Zhang Hongxiang(Chongqing Industry and Trade Polytechnic,Chongqing 408000,China)

机构地区：[1]重庆工贸职业技术学院建筑工程学院,重庆408000

出　　处：《环境科学与管理》2025年第3期155-160,共6页Environmental Science and Management

摘　　要：针对大气环境中污染源难判定、生态环境较差的问题,提出基于大气污染扩散分析的生态园林绿化布局设计。结合GIS技术获取目标区域的数字高程数据,构建大气污染扩散模型,计算大气污染物扩散面积、浓度与地面和高空间高程差、排放率、地面温度、高空温度的变化关系,将关系值转换为阈值,作为绿化布局的参照条件。设定考虑大气污染扩散的布局初始序列,以污染物扩散时间为自变量,求解序列更新下污染扩散指标与绿化布局指标间的对应关系,调节相对误差完成布局。实验结果表明,对生态园林实现绿化布局后,大气污染情况得到了明显的改善。Aiming at the difficulty in identifying pollution sources and poor ecological environment in the atmospheric environment,a layout design for ecological landscaping based on air pollution diffusion analysis is proposed.Combining GIS technology to obtain digital elevation data of the target area,this study constructs an atmospheric pollution diffusion model to calculate the relationship between the diffusion area and concentration of atmospheric pollutants and the ground and high spatial elevation difference,emission rate,ground temperature,and high-altitude temperature.The relationship values are converted into thresholds as reference conditions for greening layout.An initial layout sequence considering the diffusion of air pollution is set with the diffusion time of pollutants as the independent variable to solve the corresponding relationship between pollution diffusion indicators and green layout indicators under sequence update,and adjust the relative error to complete the layout.The experimental results show that after implementing green layout in ecological gardens,the air pollution situation has been significantly improved.

关 键 词：大气污染物扩散 生态园林绿化布局 GIS技术 扩散指标 相对误差 

分 类 号：X171[环境科学与工程—环境科学]