HU Jia-jia,ZHOU Jiang.Effect of Low Nitrogen Treatment on Five Species of Plants Applied to Rock Slope Revegetation[J].Northern Horticulture,2013,37(18):67-70.
低氮胁迫对五种岩石边坡生态修复植物的影响
- Title:
- Effect of Low Nitrogen Treatment on Five Species of Plants Applied to Rock Slope Revegetation
- 文章编号:
- 1001-0009(2013)18-0067-04
- Keywords:
- rock slope; revegetation; plants; barren resistance; low nitrogen treatment
- 分类号:
- X 171.4
- 文献标志码:
- A
- 摘要:
- 以岩石边坡5种常用护坡植物紫穗槐、火棘、早熟禾、狗牙根和红三叶为试材,研究了低氮水平和正常氮水平对植物根长、株高、生物量、叶绿素含量和植株全氮含量的影响,以探讨护坡植物的耐贫瘠性能力和机理。结果表明:生物量受低氮胁迫影响最大,根长和株高受影响较小;不同植物中,紫穗槐和火棘的耐贫瘠性较强,早熟禾的耐贫瘠性中等,狗牙根和红三叶的耐贫瘠性较差。5种植物的耐贫瘠性为火棘>紫穗槐>早熟禾>狗牙根>红三叶。同时,低氮胁迫条件下不同植物的根长、株高、生物量、叶绿素含量、全氮含量具有显著差异,可作为岩石边坡修复中耐贫瘠性植物的筛选指标。
- Abstract:
- Taking 5 species of plants applied to rock slope revegetation Amorpha fruticosa L.,Pyracantha fortuneana,Poa annua Linn,Cynodon dactylon Pers and Trifolium pretense L. as materials,the effect of low nitrogen level and normal level nitrogen treatments on plant root length,plant height,biomass,chlorophyll content and total nitrogen content were studied,and its barren resistance ability and the mechanism were investigated.The results showed that the effect of low nitrogen treatment on biomass was the biggest while on root length and plant height were the minimum.In different types of plants,barren resistance of Amorpha fruticosa L.and Pyracantha fortuneana were stronger,Poa annua Linn was middle,Cynodon dactylon Pers.and Trifolium pretense L.were weak.The order of barren resistance was Pyracantha fortuneana>Amorpha fruticosa L.>Poa annua Linn>Cynodon dactylon Pers.>Trifolium pretense L..At the same time,these indexes of different plants were obviously different,they could be used as the indexes to filter plant that had stronger barren resistance for rock slope revegetation.
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备注/Memo
第一作者简介:胡佳佳(1986-),女,硕士,助理工程师,研究方向为环境监测。E-mail:28272591@qq.com.
收稿日期:2013-04-10