文献类型：期刊文献

中文题名：普瑞杨、46杨及107杨的林内SO_(2)浓度及叶片硫酸根离子含量差异

英文题名：Absorption and Transformation of Sulfur Dioxide by Populus×euramericana cv.'Purui'

作者：冯锦霞[1] 马洁[1] 万贤崇[1]

第一作者：冯锦霞

机构：[1]中国林业科学研究院林业新技术研究所,北京100091

年份：2022

卷号：35

期号：1

起止页码：92-96

中文期刊名：林业科学研究

外文期刊名：Forest Research

收录：CSTPCD;;Scopus;北大核心:【北大核心2020】；CSCD:【CSCD2021_2022】；

基金：中央级公益性科研院所基本科研业务专项(CAFYBB2018SZ019),(CAFINT2014K09)。

语种：中文

中文关键词：杨树;SO_(2);吸收转化;净化空气;脱毒

外文关键词：Poplar;sulfur dioxide;absorption and transformation;air purification;detoxification

分类号：S792.11

摘要：[目的]研究3种杨树对空气中SO_(2)的吸收和转化作用,探索普瑞杨抗SO_(2)的机制以及净化大气的能力。[方法]在普瑞杨、46杨和107杨森林中,测定林内、林外空气中SO_(2)浓度的日动态变化,并测定在SO_(2)污染环境和非污染环境条件下杨树叶片中硫酸根(SO_(4)^(2?))离子的浓度,依此比较3种杨树对SO_(2)污染的净化作用。[结果]从林内、林外SO_(2)浓度的日动态变化可见,3种杨树均能吸收SO_(2),其中,普瑞杨吸收SO_(2)、净化空气的能力显著大于107杨和46杨。无论在高浓度还是低浓度SO_(2)环境下,普瑞杨叶片中的硫酸根离子含量均显著高于46杨和107杨,说明普瑞杨具有更强的吸收SO_(2)并转化为无毒含硫化合物的能力,这也是普瑞杨抗SO_(2)的重要机理。[结论]普瑞杨具有比107杨和46杨更强的净化SO_(2)污染环境的能力,从而可以更好净化空气,减少雾霾对人体的危害;普瑞杨具有更强的将SO_(2)转化为无毒的硫酸根离子的能力,从而起到脱毒和抗SO_(2)的作用。
[Objective]To investigate the absorption and transformation of sulfur dioxide in the air by three poplar varieties in order to study the mechanism of sulfur dioxide resistance and the capacity of Populus×euramericana cv.'Purui'in purifying the atmosphere.[Method]Three poplar varieties(Populus×euramericana cv.'Purui'(Purui),Populus×euramericana cv.'74/76'(107)and Populus×euramericana cl.'Zhonglin 46'(Zhonglin 46))were selected to compare their effects on absorbing and purifying the sulfur dioxide in atmosphere.The diurnal dynamic changes of sulfur dioxide concentration in the air inside and outside the forests were measured.The concentrations of sulfate(SO_(4)^(2-))in the leaves of Purui,Zhonglin 46 and 107 under different sulfur dioxide pollution environments were measured.[Result]The daily dynamic changes of sulfur dioxide concentration inside and outside the forests indicated that the three poplar varieties were able to absorb sulfur dioxide,and hence purify the air.Among them,Purui had significantly greater capacity in sulfur dioxide absorption and air purification than Zhonglin 46 and 107.Sulfate ion concentration in Purui leaves was significantly higher than that in Zhonglin 46 and 107.Whether in the environment of high or low concentration of sulfur dioxide,the sulfate ion in the leaves of Purui was higher than that of the other two varieties,indicating that Purui had stronger ability to absorb sulfur dioxide and convert it into non-toxic sulfur compounds.This is also an important mechanism of sulfur dioxide resistance for Purui.[Conclusion]Among the three poplar varieties,Purui has stronger ability to purify the atmosphere polluted by sulfur dioxide,thereby detoxifying sulfur dioxide,so as to better purify the air and reduce the harm of haze to human body.Compared with other poplar species,Purui has stronger ability to convert sulfur dioxide into non-toxic sulfate ions,which can facilitates its detoxification.