首页> 外文期刊>Ecological engineering: The Journal of Ecotechnology >Using willow microcuttings for ecological restoration: An alternative method for establishing dense plantations
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Using willow microcuttings for ecological restoration: An alternative method for establishing dense plantations

机译:利用柳树微加密进行生态修复:建立致密种植园的另一种方法

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This experimental study presents an innovative method for establishing a willow (Salix spp.) shrub vegetation cover on disturbed sites in North America. Willow microcuttings of Salix miyabeana 'SX61', S. eriocephala 'S25' and S. purpurea 'Fish Creek' were selected to test the potential of shortened willow cuttings. We evaluated the effect of three factors related to microcutting assemblages (monoculture and polyculture), the presence or absence of a companion herbaceous plant and two types of substrate (same soil, but one with compost and one without). The objectives were to assess 1) the potential growth of willow microcuttings in open site conditions, 2) the influence of soil amendments on the establishment of willow microcuttings and 3) the influence of diversity on biotic resistance. The results showed a greater establishment rate, stem height and number of shoots per microcutting without the presence of an herbaceous plant. The plots planted without compost showed better establishment rates, especially those in the polyculture plots. The presence of compost increased the production of number of shoots per microcutting and tended to increase stem height. The presence of an herbaceous plant was related to higher plant cover, but no relationship with biotic resistance was observed. Although willow cover did not significantly affect relative growth of undesirable tree species seedlings (Betula populifolia and Acer rubrum), we observed that plant cover tended to reduce the relative growth rate. Consequently, this preliminary test of using microcuttings as an alternative approach to establishing a dense shrub cover showed good potential to restore disturbed sites and limit tree encroachment in open sites, reducing environmental and economic costs.
机译:该实验研究提出了一种建立柳树(Salix SPP。)灌木植被覆盖的创新方法。选择了Salix Miyabeana'SX61',S.iocephala's S25'和S.Purpurea'鱼溪'的柳树微加工,以测试缩短柳树扦插的潜力。我们评估了三种因素与微包组合(单一栽培和多种植),伴侣草本植物的存在或不存在的影响,以及两种类型的基材(相同的土壤,但一个带堆肥和一个没有)。目的是评估1)开放地点条件下的柳树微封装的潜在增长,2)土壤修正对柳树微加紧建立的影响和3)多样性对生物抗性的影响。结果表明,每微小皮肤的芽率较大,茎高度和枝条数量,而不会存在草本植物。没有堆肥种植的地块显示了更好的建立率,尤其是那些在多培育情节中的速率。堆肥的存在增加了每次微包的芽数的产生,并倾向于增加茎高。草本植物的存在与高等植物覆盖有关,但没有观察到与生物抗性的关系。尽管柳树覆盖没有显着影响不希望的树种幼苗(Betula populifolia和acer Rubrum)的相对生长,但我们观察到植物覆盖趋于降低相对生长速率。因此,这种使用微rings作为建立致密灌木覆盖的替代方法的初步试验表明,恢复受扰动的位点并限制开放地点的树木侵蚀,降低了环境和经济成本的良好潜力。

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