文献类型：期刊文献

中文题名：广州市城郊森林公园雨季空气颗粒物浓度特征

英文题名：Characteristics of Rainy Season Atmospheric Particulate Matters Concentrations in Forest Parks along An Urban-suburban Gradient in Guangzhou,China

作者：吴巧花[1] 陈步峰[1] 翟石磊[1] 史欣[1]

第一作者：吴巧花

机构：[1]中国林业科学研究院热带林业研究所

年份：2017

卷号：26

期号：8

起止页码：1368-1374

中文期刊名：生态环境学报

外文期刊名：Ecology and Environmental Sciences

收录：CSTPCD;;北大核心:【北大核心2014】；CSCD:【CSCD2017_2018】；

基金：国家林业公益性行业科研专项(20140430105);广州市城市森林生态系统效益监测;分析与研究(2016-2019);广东珠江三角洲森林生态系统国家定位观测研究站运行补助项目(2016-LYPT-DW-127)

语种：中文

中文关键词：空气颗粒物;城郊梯度;森林公园;游憩环境

外文关键词：atmospheric particulate matters; urban-suburban gradient; forest park; recreation environment

分类号：X16

摘要：城市森林公园作为人们游憩、运动的重要场所,其空气质量倍受市民关注。选择广州市城郊梯度上4个森林公园,采用定位对比观测方法,分析了雨季典型晴天森林公园林内空气颗粒物(TSP、PM_(10)、PM_(2.5)、PM_(1.0))质量浓度日变化特征及其在城郊梯度上的规律,结果表明,(1)雨季典型晴天,4个森林公园林内的TSP、PM_(10)与PM_(2.5)质量浓度日均值均达到国家环境空气质量一级标准,且PM_(2.5)浓度低于夏季晴天广州城区浓度。4个公园林内PM_(2.5)/PM_(10)的均值范围为0.31~0.45,也表明公园受污染程度均较轻。(2)公园林内各粒径颗粒物质量浓度均值在城郊梯度上均表现出显著差异(P<0.05)。市区及市北缘的森林公园林内TSP、PM_(10)质量浓度显著大于郊区森林公园,而PM_(2.5)与PM_(1.0)质量浓度为游客人数最多的市北缘森林公园显著大于市区和郊区森林公园。(3)森林公园林内TSP、PM_(10)、PM_(2.5)、PM_(1.0)质量浓度的日变化趋势均呈先下降后上升,在14:00—16:00达到最小值,4个公园各粒径颗粒物质量浓度日变幅皆以白云山最大。(4)在监测时间范围内,大夫山森林公园空气颗粒物质量浓度受多气象因子共同影响,温度、湿度、气压等对其影响均达到极显著或显著水平。基于上述分析认为,雨季晴天城郊梯度4个森林公园皆适宜休闲游憩,远离市中心、游客人数适中以及有湖泊等水源多的公园为更好的选择。
Urban forest park,as a main receration place for residents,its air quality is of great concern to the public.During the rainyseasons(July-September),atmospheric particulate matters TSP,PM10,PM2.5and PM1.0were monitored continuously among fourforest parks in Guangzhou along an urban-suburban gradient.The results showed that:(1)In sunny days,average concentrations ofTSP、PM10and PM2.5of the four forest parks were all within the limit of national first class standard,and the concentration of PM2.5was lower than the urban areas.The average ratio of PM2.5/PM10ranged from0.31to0.45,which also indicated that the four forestparks were only slightly contaminated.(2)A significant difference was detected among the four parks(P<0.05).The concentrationsof TSP and PM10in town centre and northern area were significantly higher than the suburban forest parks,while the concentrationsof PM2.5and PM1.0in northern edge area were significantly higher than in town centre and suburban forest parks.(3)The dailyvariation of the concentrations of TSP,PM(10,2.5,1.0)in the four forest parks showed the same trend,declining from10:00,and thenrising from14:00to16:00.The northern edge area had the greatest daily variation among the four parks.(4)During the observationtime,there was at least significant correlation between atmospheric particulate matters concentrations and the meteorological factors(temprature,humidity and pressure)in Dafu Forest Park.Therefore,in sunny days during rainy seasons,the four forest parks are allsuitable for relaxation and recreation,and the park with a lake,a few tourists,and far away from city center will be a better choice.