污染气体扩散效应的城市土地规划布局优化方法研究  

Optimization for Urban Land Planning and Layout Considering Diffusion Effect of Pollutant Gases

作　　者：张道华 Zhang Daohua(Nanjing Academy of Urban Planning&Design Co.,Ltd,Nanjing 210005,China)

机构地区：[1]南京市规划设计研究院有限责任公司,江苏南京210005

出　　处：《环境科学与管理》2024年第6期45-50,共6页Environmental Science and Management

摘　　要：为了提高空气环境质量,提出了考虑污染气体扩散效应的城市土地规划布局优化方法。分析大气污染地面扩散模式,计算风向三维空间的空气污染浓度变化关系,得到扩散大气污染地面轴,利用景观破碎度、优势度和分离度加权计算土地景观干扰程度,设置指标权重,获得生态风险指标与抵抗能力。根据合理的空间布局和适度的绿地空间投入,增加点状方式土地绿色空间体系布局,算出规划面积并均匀调整分布状况,完成城市土地规划布局优化。通过实验分析,证明所提方法能够合理的优化城市土地规划布局,提高污染气体扩散程度,减少环境污染。In order to improve the quality of the air environment,an urban land planning and layout optimization method considering the diffusion effect of pollution gases has been proposed.The study analyzes the ground diffusion mode of air pollution and calculates the relationship between the concentration changes of air pollution in the three-dimensional space of wind direction.It obtains the ground axis of air pollution diffusion by using landscape fragmentation,dominance,and separation weighting to calculate the degree of land landscape interference,set indicator weights,and obtain ecological risk indicators and resistance capabilities.Based on a reasonable spatial layout and moderate investment in green space,the method increases the layout of the dot shaped land green space system,calculates the planned area and evenly adjust the distribution,and complete the optimization of urban land planning layout.Through experimental analysis,it has been proven that the proposed method can reasonably optimize urban land planning and layout,improve the degree of pollution gas diffusion,and reduce environmental pollution.

关 键 词：污染气体扩散 土地规划布局 景观生态风险 空气污染浓度 加权处理 

分 类 号：X511[环境科学与工程—环境工程]