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[1]李元应,侯晓奎.粉尘污染对郑州市典型绿化树种叶片生理生化特性的影响[J].江苏农业科学,2017,45(18):110-115.
 Li Yuanying,et al.Effects of dust pollution on physiological and biochemical characteristics of urban typical afforestation trees in Zhengzhou City, Henan Province[J].Jiangsu Agricultural Sciences,2017,45(18):110-115.
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粉尘污染对郑州市典型绿化树种
叶片生理生化特性的影响
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第45卷
期数:
2017年18期
页码:
110-115
栏目:
园艺与林学
出版日期:
2017-09-20

文章信息/Info

Title:
Effects of dust pollution on physiological and biochemical characteristics of urban typical afforestation trees in Zhengzhou City, Henan Province
作者:
李元应 侯晓奎
黄河交通学院,河南焦作 454950
Author(s):
Li Yuanyinget al
关键词:
粉尘污染绿化树种生理生化特性郑州市
Keywords:
-
分类号:
X513
DOI:
-
文献标志码:
A
摘要:
以河南省郑州市城区道路中的典型绿化树种为试验材料(紫叶李、木槿、连翘、垂丝海棠、紫荆),连续3年研究和比较粉尘污染对不同绿化树种滞尘效应及生理特性的影响,为不同绿化树种在生态景观配置、选择适合的绿化树种、合理的城市绿化建设方面提供科学依据。结果表明:(1)不同绿化树种降尘粒径主要分布在2.5~100.0 μm之间,叶面降尘中颗粒物粒径集中分布在100.0 μm以下(占99%以上),降尘物主要为在大气中经一定距离漂移的总悬浮颗粒物(TSP,粒径≤100 μm);(2)不同绿化树种降尘物中细颗粒物(PM2.5,粒径≤2.5 μm)、可吸入颗粒物(PM10,粒径≤10 μm)和TSP平均粒径均以连翘和垂丝海棠较高,木槿和紫荆相对较低;(3)不同绿化树种比叶质量(x)与叶片滞尘能力(y)之间的线性函数关系最佳,其拟合方程为y=0.040 54x-0.894 32,r2=0.973 0(P<0.01),表明两者间存在明显的相关关系,即比叶质量较大的植物滞尘能力较强;(4)对于绿化树种叶片生理特性,不同绿化树种叶片比叶质量、叶面积指数、叶绿素a和b含量、可溶性蛋白含量、可溶性糖含量、过氧化氢酶活性、过氧化物酶活性和超氧化物歧化酶活性基本表现为连翘和垂丝海棠较高,木槿和紫荆相对较低;而丙二醛含量却表现为木槿和紫荆相对较高,连翘和垂丝海棠相对较低,由此表明连翘和垂丝海棠对粉尘污染具有较高的抗性;(5)相关性分析表明,郑州市绿化树种叶面降尘的粒径与叶片生理生化指标之间具有一定的相关性,绿化树种叶面降尘的粒径与叶片丙二醛含量呈显著或极显著负相关关系,绿化树种降尘物PM2.5粒径主要依赖于叶片生理生化特性,绿化树种降尘物PM10粒径主要依赖于比叶质量和叶面积指数。
Abstract:
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备注/Memo

备注/Memo:
收稿日期:2016-04-18
作者简介:李元应(1977—),男,河南信阳人,讲师,研究方向为园林规划设计、植物景观等。E-mail:Leeyuanying@126.com。
通信作者:侯晓奎,讲师,研究方向为园艺设计、园林规划等。E-mail:4127yulin@163.com。
更新日期/Last Update: 2017-09-20