不同融雪剂对三种草坪草种子萌发特性的影响  

ffects of different deicing agents on seed germination characteristics of three kinds of turfgrass

作　　者：杨凤至 赵萌萌 余启杰 赵斌 黄占斌[1] YANG Fengzhi;ZHAO Mengmeng;YU Qijie;ZHAO Bin;HUANG Zhanbin(School of Chemical&Environmental Engineering,China University of Mining&Technology-Beijing,100083,Beijing,China;Beijing First Tianren Ecological Landscape Co.LTD.,Beijing,102600,Beijing,China)

机构地区：[1]中国矿业大学(北京)化学与环境工程学院,北京100083 [2]北京市首发天人生态景观有限公司,北京102600

出　　处：《中国水土保持科学》2024年第5期171-178,共8页Science of Soil and Water Conservation

基　　金：北京首发天人生态景观有限公司科研项目“新型生态环保融雪剂的研制及其环境效应研究”(U02626)。

摘　　要：融雪剂对植物种子萌发影响是国家标准中一项重要指标。本文采用种子萌发实验方法,以2号氯盐融雪剂和3号混合型融雪剂为对照,比较新研发的1号生态环保融雪剂对禾本科黑麦草(Lolium perenne cv.Green Emerald)和早熟禾(Poa pratensis cv.Merit)豆科白三叶(Trifolium repens cv.Riverdel)3种草坪草种子萌发特征影响,结合材料的环保性与经济性,评价不同融雪剂对草坪种子萌发特性的影响。结果表明:3种融雪剂对草坪草种子萌发均表现为低促高抑效应;相同浓度时,融雪剂对3种草坪草种子萌发50%抑制的临界值表现为:2号氯盐融雪剂>1号生态融雪剂>3号混合型融雪剂;随着融雪剂浓度增长,3种种子萌发受到抑制作用随之增强。3种草坪种子对融雪剂耐受性表现为早熟禾>黑麦草>白三叶草。发芽率、发芽指数、活力指数、根长、种子相对受害率间呈显著相关。研究结果从多维度评价分析不同融雪剂对种子萌发特性的影响,为不同融雪剂使用的浓度限制范围,以及生态环保融雪剂推广应用提供参考。[Background]Deicing agent is a substance commonly used to remove snow and melt ice from roads in winter at home and abroad.However deicing agent can bring convenience to urban life while could also cause some damage to the urban ecological environment.With the strengthening of ecological environment and deicing agent environmental protection and economic requirements,cost-effective,degradable deicing agent has become a research hotspot.In order to evaluate the impact of deicing agent on the environment,the Chinese national standard stipulates that deicing agent had a relative seed dawage rate≥50%to the seeds of plants.[Methods]In this study,the effect of deicing agent on seed germination characteristics was evaluated from five indicators:seed germination rate,germination index,vigor index,root length,and relative seed damage rate.In this study,it was used the experimental method of seed germination.Taking No.2 chlorine salt deicing agent and No.3 mixed deicing agent as the control,it is analyzed the effects of No.1 new eco-friendly deicing agent on seed germination characteristics for three turfgrass species,including perennial ryegrass(Lolium Perenne),white clover(Trifolium Repens)and kentucky bluegrass(Poa Pratensis).[Results]The results showed that different snow melting agents promoted the germination of turfgrass seeds at low concentration and inhibited the germination at high concentration.Under the same concentration of deicing agent stress,the cut-off value of 50%inhibition of seed germination was:No.2 chlorine salt deicing agent>No.1 new eco-friendly deicing agent>No.3 mixed deicing agent.As the deicing agent concentration increased,the germination rate,germination index and vigour index of the three seeds decreased significantly,the radicle growth was significantly inhibited,the seed victimization rate increased significantly and the inhibition of the germination of the three seeds then increased.There is a significant correlation among germination rate,germination index,vigor index,root length and re

关 键 词：融雪剂 黑麦草 白三叶 早熟禾 种子萌发 

分 类 号：X53[环境科学与工程—环境工程]