[1]李新宇,赵松婷,郭佳,等. 基于扫描电镜定量评价植物滞留大气颗粒物能力[J].西北林学院学报,2016,31(1):286-291.[doi:10.3969/j.issn.1001-7461.2016.01.50]
 LI Xin-yu,ZHAO Song-ting,GUO Jia,et al. Evaluation of the Retention Capability of Air Particulates by Common Trees Based on SEM[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2016,31(1):286-291.[doi:10.3969/j.issn.1001-7461.2016.01.50]
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 基于扫描电镜定量评价植物滞留大气颗粒物能力()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第31卷
期数:
2016年第1期
页码:
286-291
栏目:
出版日期:
2016-01-31

文章信息/Info

Title:
 Evaluation of the Retention Capability of Air Particulates by Common Trees Based on SEM
文章编号:
1001-7461(2016)01-0286-06
作者:
 李新宇1赵松婷1郭佳1李延明1*于秋雅2
 (1.北京市园林科学研究院,园林绿地生态功能评价与调控技术北京市重点实验室,北京 100102;2.河北农业大学 园林与旅游学院,河北 保定 071000)
Author(s):
 LI Xin-yu1ZHAO Song-ting1GUO Jia1LI Yan-ming1*YU Qiu-ya2
 (1.Beijing Institute of Landscape Architecture,Beijing Key Laboratory of Ecological Function Assessment and Regulation Technology of Green Space,Beijing 100102,China; 2.College of Landscape and Tourism,Agricultural University of Hebei,Baoding,Hebei 071000,China)
关键词:
 园林植物乔木扫描电镜滞尘能力细颗粒物
Keywords:
 garden plant species tree scanning electron microscope (SEM) particle retaining ability fine particle (PM2.5)
分类号:
X513
DOI:
10.3969/j.issn.1001-7461.2016.01.50
文献标志码:
A
摘要:
 选择适合城市发展的、滞留颗粒物能力强的树种,可以为城市绿地规划、设计、建设提供重要依据。利用扫描电镜观测的图片定量评价园林植物滞留细颗粒物能力的方法,并对北京市常用园林乔木滞留颗粒物能力进行评价。结果表明:乔木单位叶面积滞尘量差异较大,落叶乔木银杏(1.619 g·m-2)为绦柳(0.079 g·m-2)的20倍,常绿乔木雪松(3.405 g·m-2)是油松(0.663 g·m-2)的5倍;比较植物整株滞尘量,单周滞尘量较多的植物有元宝枫、圆柏、银杏、臭椿、国槐、小叶朴、家榆、毛白杨、雪松、栾树和刺槐;比较植物单位叶面积每周滞留PM2.5的质量,落叶乔木中,元宝枫(0.606 g·m-2)滞留PM2.5的能力最强,滞留PM2.5的质量是绦柳(0.016 g·m-2)的38倍,常绿乔木中,雪松(0.144 g·m-2)单位叶面积滞留PM2.5的能力最强,是油松(0.077 g·m-2)的20倍;对比整株植物每周滞留PM2.5的质量,滞留PM2.5质量较多的植物有元宝枫、柿树、国槐、银杏、臭椿、白玉兰、楸树、小叶朴、圆柏、杜仲、家榆、毛白杨、栾树、刺槐,整株树每周滞留PM2.5质量均在10 g以上,最弱的为紫叶李、碧桃、北京丁香、绦柳、山桃、丝绵木。
Abstract:
 In order to study the atmospheric particulates including TSP (total suspended particulate ) and PM2.5 retaining capability of different trees,31 species of representative trees in Beijing were chosen to systematically analyze the particulate accumulation for 7 days on the leaves and the particulate retention of the whole plants in the same open surroundings by using direct sampling,SEM ( scanning electron microscopy ) and statistical analysis methods.Clustering method was used to evaluate the particle retaining capability of plants.The results showed that:there were significant differences in TSP retention capability among plant individuals in every unit leaf area for 7 days,Deciduous tree of Ginkgo biloba (1.619 g·m-2) was 20 times more than Salix pendula (0.079 g·m-2),evergreen tree of Cedus deodara(3.405 g·m-2)was 5 times more than Pinus tabuliformis (0.663 g·m-2).Tree species with high retention amounts TSP were Acer truncatum,Sabina chinensis,Ginkgo biloba,Ailanthus altissima,Sophora japonica,Celtis bungeana,Ulmus pumila,Populus tomentosa,Cedus deodara,Koelreuteria paniculata,Robinia pseudoacacia.There were also significant differences in 7-day retention amount of PM2.5 in every unit leaf area among different tree species,Deciduous tree of A.truncatum (0.606 g·m-2) was 38 times more than Salix pendula (0.016 g·m-2),evergreen tree of C.deodara(0.144 g·m-2)was 20 times more than P.tabuliformis (0.077 g·m-2).Tree species by which the 7-day PM2.5 retention amounts were over 10 g were A.truncatum,Diospyros kaki,S.japonica,G.biloba,Ailanthus altissima,Magnolia denudata,Catalpa bungei,C.bungeana,S.chinensis,Eucommia ulmoides,U.pumila,P.tomentosa,K.paniculata,R.pseudoacacia.On the contrary,tree species that exhibited low 7-day PM2.5 retention amount (less than 1 g)were Prunus cerasifera,Prunus persica,Syringa reticulata,S.pendula,P.davidiana,Euonymus maackii.

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备注/Memo

备注/Memo:
 收稿日期:2015-08-10修回日期:2015-09-10
基金项目:国家科技支撑计划课题:北京地区扬尘抑制技术研发及示范应用(2013BAC17B03)。
作者简介:李新宇,女,高级工程师,研究方向:园林植物生态功能评价。E-mail:lxy09618@163.com
*通信作者:李延明,男,教授级高工,研究方向:园林生态。E-mail:liyanming_beijing@hotmail.com
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