[1]刘宇,张楠,王晓立,等. 冬季苏北8种常绿乔木吸滞颗粒物能力与叶表微结构关系[J].西北林学院学报,2021,36(3):80-87.[doi:10.3969/j.issn.1001-7461.2021.03.12]
　LIU Yu,ZHANG Nan,WANG Xiao-li,et al. The Relationship between the Adsorption Capacity of 8 Evergreen Arbors in Northern Jiangsu Province and the Micro Structure of Leaf Surface[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2021,36(3):80-87.[doi:10.3969/j.issn.1001-7461.2021.03.12]
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 冬季苏北8种常绿乔木吸滞颗粒物能力与叶表微结构关系()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第36卷
期数:
2021年第3期
页码:
80-87
栏目:
出版日期:
2021-05-31

文章信息/Info

Title:
 The Relationship between the Adsorption Capacity of 8 Evergreen Arbors in Northern Jiangsu Province and the Micro Structure of Leaf Surface
文章编号:
1001-7461(2021)03-0080-08
作者:
 刘宇1; 张楠1; 王晓立1; 2; 周力行1; 韩浩章1; 3
 （1.宿迁学院 建筑工程学院，江苏 宿迁 223800；2.南京林业大学 生物与环境学院，南京 210095；3.南京农业大学 园艺学院，江苏 南京 210095）
Author(s):
 LIU Yu1; ZHANG Nan1; WANG Xiao-li1; 2; ZHOU Li-xing1; HAN Hao-zhang1; 3
 (1.School of Civil Engineering and Architecture of Suqian College,Suqian 223800,Jiangsu,China; 2.College of Biological and Environmental,Nanjing Forestry University,Nanjing 210095,Jiangsu,China; 3.College of Horticulture,Nanjing Agricultural University,Nanjing 210095,Jiangsu,China)
关键词:
 ; 颗粒物; 常绿乔木; 叶表微结构; 苏北
Keywords:
 ; particulate matter;  evergreen tree;  leaf surface microstructure;  Northern Jiangsu
分类号:
S718.55
DOI:
10.3969/j.issn.1001-7461.2021.03.12
文献标志码:
A
摘要:
 以冬季苏北地区8种常绿乔木（枇杷、石楠、龙柏、桂花、广玉兰、雪松、大叶女贞、香樟）为对象，采用水洗-滤膜法测定叶片对不同粒径颗粒物（PM、PM>10、PM2.5~10、PM2.5）吸滞量，并用S-3000N型扫描电镜观察叶表微结构特征。结果表明，8种常绿乔木单位叶面积的PM、PM>10、PM2.5~10、PM2.5吸滞量分别为0.553 1～3.839 6、0.468 3～3.486 7、0.063 1～0.255 8、0.021 8～0.181 0 g·m-2；PM>10、PM2.5~10、PM2.5吸滞量分别占PM质量的85.68%、9.22%、5.10%；叶片有多条线状突起，皱褶较多，气孔较密集的枇杷、石楠、龙柏单位叶面积滞留颗粒物能力较强；叶面光滑平整的大叶女贞、香樟吸滞颗粒物能力较弱；叶面有较厚蜡质层、沟壑较少、气孔密集的雪松对粒径越小的颗粒物吸滞能力表现越优；沟壑投影面积增大能显著提高叶片对不同粒径颗粒物的吸滞量；保卫细胞面积与PM和PM>10吸滞量呈极显著正相关；气孔密度与PM2.5~10和PM2.5吸滞量呈极显著正相关；沟壑投影面积、保卫细胞面积、气孔密度等叶片微结构是调控冬季8种常绿乔木叶片颗粒物吸滞能力的主要因素。
Abstract:
 Eight evergreen arbors（Eriobotrya japonica,Photinia serrulata，Sabina chinensis,Osmanthus fragrans,Magnolia grandiflora,Cedrus deodara,Ligustrum lucidum,and Cinnamomum camphora）occurring in Northern Jiangsu Province in winter were selected as research objects.The leaf adsorption capacity to particulate matter with different sizes (PM,PM>10,PM2.5-10,PM2.5) was measured via water washing-membrane filtering method.The microstructures of the leaves were observed by the scanning electron microscope.The results suggested that the ranges of the absorption capacity of the leaves of 8 evergreen arbors to PM,PM>10,PM2.5-10 and PM2.5 per leaf area were 0.553 1-3.839 6,0.468 3-3.486 7,0.063 1-0.255 8,and 0.021 8-0.181 0 g·m-2,respectively.The absorption capacity of the leaves to PM>10,PM2.5-10 and PM2.5 by weight accounted for 85.68%,9.22% and 5.10% of the total PM,respectively.E.japonica,P.serrulata，S.chinensis leaves,which had multiple linear protrusions,more wrinkles,and dense stoma had relatively stronger adsorption capacity to particulate matter and L.lucidum,and C.camphora leaves with smooth and flat surface had relatively weaker adsorption capacity to particulate matter.C.deodara leaf surface featured by thick waxy layer,less furrows,and the dense pores displayed better performance in adsorbing stagnant particles with smaller particle size.The increase in gully projection area could significantly improve the adsorption capacity of particles in different sizes.The stomatal guard cell area of the leaves was extremely,significantly,positively correlated with PM and PM>10 adsorption and stomatal density was extremely significantly,and positively correlated with PM2.5-10 and PM2.5 adsorption.The microstructures of the leaves such as the gully projection area,the guard cell area and the stomatal density were the main factors that control the particulate matter adsorption capacity of the leaves of 8 evergreen arbors in winter.

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备注/Memo

备注/Memo:
 收稿日期：2020-03-03修回日期：2020-04-12
基金项目：国家星火计划项目（2013GA690424）；宿迁市重点研发项目（S202002）；宿迁市园林植物与观赏园艺重点实验室（M202001）。
作者简介：刘宇，硕士，副教授。研究方向：风景园林规划与园林生态。E-mail：718111060@qq.com
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