西昌市大气重金属苔藓监测种类筛选  

Selection of Moss Species for Atmospheric Monitoring of Heavy Metal in Xichang Area

作　　者：杨冬萍 杨星云 王雪梅 胡金朝 YANG Dongping;YANG Xingyun;WANG Xuemei;HU Jinzhao(School of Resources and Environment,Xichang University,Xichang,Sichuan 615013,China)

机构地区：[1]西昌学院资源与环境学院,四川西昌615013

出　　处：《西昌学院学报（自然科学版）》2022年第4期85-90,共6页Journal of Xichang University(Natural Science Edition)

基　　金：西昌市科技项目(18JSYJ09)。

摘　　要：为了探究适合西昌市大气重金属苔藓监测的方法,筛选适宜的苔藓监测物种,采集分析了西昌市主要区域冬季苔藓植物的生理生化等特征。通过对苔藓植物的可溶性蛋白、超氧歧化酶、过氧化物酶、过氧化氢酶、叶绿素、花青素、类胡萝卜素和重金属质量分数的比较分析,筛选出富集色素、生长优势突出、重金属富集能力强的物种。结果表明:大灰藓(Hypnum plumaeforme)可溶性蛋白含量最高,牛舌藓(Anomodon minor)抗氧化酶含量最高,美喙藓(Eurhynchium pulchellum (hedw.) jenn.)的重金属富集程度相对较最高,鳞叶藓(Taxiphyllum taxirameum)的重金属富集程度次之,牛舌藓、大灰藓重金属富集能力较低。综合比较表明美喙藓和鳞叶2种苔藓植物是适宜西昌市大气重金属监测的物种。In order to find a suitable monitoring method of atmospheric heavy metal bryophytes in Xichang area, and screen suitable bryophyte species, the physiological and biochemical characteristics of bryophytes in winter from Xichang area were collected and analyzed in this work. By comparing and analyzing the contents of soluble protein, superoxide dismutase, peroxidase, catalase, chlorophyll, anthocyanin, carotenoids and heavy metals in bryophytes, the species with rich pigment, outstanding growth advantages and strong heavy metal enrichment ability were selected. The results showed that the soluble protein content of Hypnum plumaeforme was the highest, the antioxidant enzyme content of Anomodon minor was the highest, the heavy metal enrichment degree of Eurhynchium pulchellum(hedw.) jenn. was the highest, the heavy metal enrichment degree of Taxiphyllum taxirameum was the second, and the heavy metal enrichment ability of Anomodon minor and Hypnum plumaeforme was low. The results of the study finally showed that Eurhynchium pulchellum(Hedw.) Jenn. and Taxiphyllum taxirameum, were suitable for monitoring heavy metals in atmosphere of Xichang area.

关 键 词：西昌市 苔藓 大气重金属 监测 种类筛选 

分 类 号：X831[环境科学与工程—环境工程]