应用生态学报2013，Vol.24Issue(6)：1761-1768,8.
城市空气负离子浓度时空分布及其影响因素综述
Spatiotemporal distribution of negative air ion concentration in urban area and related affecting factors: A review
摘要
Abstract
Negative air ion (NAI) concentration is an important indicator comprehensively reflecting air quality,and has significance to human beings living environment.This paper summarized the spatiotemporal distribution features of urban NAI concentration,and discussed the causes of these features based on the characteristics of the environmental factors in urban area and their effects on the physical and chemical processes of NAI.The temporal distribution of NAI concentration is mainly controlled by the periodic variation of solar radiation,while the spatial distribution of NAI concentration along the urban-rural gradient is mainly affected by the urban aerosol distribution,underlying surface characters,and urban heat island effect.The high NAI concentration in urban green area is related to the vegetation life activities and soil radiation,while the higher NAI concentration near the water environment is attributed to the water molecules that participate in the generation of NAI through a variety of ways.The other environmental factors can also affect the generation,life span,component,translocation,and distribution of NAI to some extent.To increase the urban green space and atmospheric humidity and to maintain the soil natural attributes of underlying surface could be the effective ways to increase the urban NAI concentration and improve the urban air quality.关键词
空气负离子/时空分布/城市/影响因素Key words
negative air ion/ spatiotemporal distribution/ urban/ affecting factor.分类
资源环境引用本文复制引用
黄向华,王健,曾宏达,陈光水,钟羡芳..城市空气负离子浓度时空分布及其影响因素综述[J].应用生态学报,2013,24(6):1761-1768,8.基金项目
国家自然科学基金项目(31000321,31200366)和福建省科技厅省属公益类科研专项(K3-299)资助. （31000321,31200366）
