共查询到19条相似文献,搜索用时 140 毫秒
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浅谈乡土树种在园林绿化中的应用 总被引:2,自引:0,他引:2
系统介绍了乡土树种的生物学特性,分析了乡土树种在园林绿化中具有适应性强、抗逆性强、观赏性好、经济效果佳等特点,乡土树种确保了当地生态系统的稳定性和可持续发展,体现了一定的生态效益和景观功能,探讨了乡土树种在园林绿化应用中存在的问题。同时对乡土树种在绿化中的应用提出了适地适树、挖掘可利用资源、优化植物配置等建议。 相似文献
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通过对太原学院汾东校区乡土树种进行调查,阐述了乡土树种在高校新区园林绿化中的应用优势,分析了乡土树种在太原学院的应用现状,提出了乡土树种在应用中存在的问题及相应的对策,以期使乡土树种在高校新区建设和城市生态建设中得到更广泛的应用。 相似文献
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乡土树种包括乡土树种和乡土化的外来树种通过乡土树种的资源现状、城乡四绿工程中的详细应用情况,阐述了乡土树种应用存在的问题,提出了乡土树种应用推广的建议。 相似文献
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笔者通过对介休市乡土树种在园林绿化中的实际应用进行了详细调查,提出了介休市在绿化中存在着乡土树种使用不均衡、外来树种使用过多、植物配置不合理、植物特色不明显等问题,进一步阐述乡土树种在园林绿化中的重要意义和发展对策,旨在为今后介休市乡土树种的应用与发展提供指导和参考。 相似文献
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乡土树种具有的适应性强、抗逆性强并具有文化底蕴和标识功能等优点在园林建设中的作用不容小觑,本文通过对乡土树种的特点及对乡土树种在现代园林绿化中的应用现状进行简要分析,论述了乡土树种与城市景观的相互关系,阐明其在景观建设中的重要性。 相似文献
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文章系统详细的分析了乡土树种作为造林绿化树种的优势,对山东省目前乡土树种利用现状进行了调查分析,就如何在城乡绿化工作中合理使用乡土树种进行探讨。 相似文献
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深圳市羊台山森林公园优良乡土阔叶树种选择技术研究 总被引:1,自引:0,他引:1
对广东省深圳市羊台山森林公园内的1块林分改造试验林和1块新造林的树种生长情况进行调查,分析不同树种生长的差异,以此为羊台山地区林分改造和新造林的树种选择提供理论依据。分析结果表明:林分改造试验林中选出14个树种,其林木生长较佳;新造林中紫荆、深山含笑、黄花风铃木、降香黄檀、阴香、土沉香和假苹婆7个树种表现优良。选出的21个树种按用途分为9种乡土生态阔叶树,8种景观树种,5种特色外来树种及4种珍贵树种。在羊台山进行森林公园林分改造或新造林时,树种选择应以乡土阔叶树为骨干,适当搭配景观树种,引进少量的珍贵树种和有特色的外来树种,这对于提升林分质量,改善森林景观,提升森林的文化内涵具有重要意义,同时为类似森林公园的林分改造和造林树种选择提供借鉴和参考。 相似文献
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昆明市引种的园林树木适应性研究 总被引:8,自引:0,他引:8
依据对昆明市现有园林树木(包括外地园林树木和本地野生树种引种的种类)的生物学、生态学习性以及生活力表现等的调查资料,对其引种园林树种的适应性作出了初步评价。昆明市栽培的园林树木计有84科240属623种(包括变种、变型及品种)。其中531种适应或基本适应昆明的园林环境条件,占总数的85%。在原产于北热带的树种中,适应或基本适应的占36%,不适应的占64%,其中濒死或死亡的占30%;原产南亚热带的树种,适应或基本适应的占70%,不适应的占30%;原产亚热带和暖温带的树种均能适应或基本适应昆明的园林环境条件;在原产温带的树种中,适应或基本适应的占88%,不适应的占12%。昆明野生树种适应性较好,而原产高海拔地区的树种适应性较差。在原产国外的树种中,引自北美洲西南部、中美洲高原、澳洲东南部、日本、欧洲地中海沿岸、印度、缅甸的树种适应性较好;而引自非洲、美洲、澳洲、东南亚、南亚热带地区的树种适应性差。 相似文献
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Cicik Udayana Harry P. Andreassen Christina Skarpe 《Journal of Sustainable Forestry》2020,39(5):494-510
ABSTRACT Forest rehabilitation is when a desired tree species is planted in degraded forests or lands. Rehabilitation by planting a single tree species is a common way to restore exploited forests to maintain ecological processes. We compared woody and herbaceous understory vegetation between forests rehabilitated by mahogany (N = 12) or teak (N = 12) planted from 1941 until 2003 in Yogyakarta, Indonesia. Understory vegetation of these areas was compared with that of three native forests. Species richness, species diversity, density of plants and proportion of native plants did not differ between the rehabilitated areas and the native forest. Recently rehabilitated areas were different from the native forests while 41–74 yr after rehabilitation, characteristics of understory vegetation approached those of native forest. We described species composition using ordination, and found it to differ between areas rehabilitated with teak and with mahogany and, particularly, between the rehabilitated areas and the native forests. Time since rehabilitation and tree species planted were important for the species composition of understory vegetation. We conclude that the selection of species for rehabilitation and letting rehabilitated areas mature are important for understory development and species diversity. 相似文献
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Latitudinal shifts in tree species distributions are a potential impact of climate change on forest ecosystems. It has been hypothesized that some tree species may become extirpated as climate change effects may exceed their migration ability. The goal of this study was to compare tree species compositions in northern urban areas to tree compositions in forestland areas in the eastern U.S. as an indicator of the potential for urban trees to facilitate future forest tree species migration. Results indicated that a number of tree species native to eastern U.S. forests of southern latitudes are currently present in northern urban forests. The biomass density (Mg/ha) of urban tree species is typically less than half of forestland densities with the majority of urban tree species found in nearby (<100 km) forestland. Urban tree propagation is often facilitated by humans, whereas the necessary pollinators and agents of tree seed dispersal in forestlands may be lacking regardless of climate change. It is suggested that urban areas may serve divergent, dual roles as both a native tree seed source and refuge for a limited number of forestland tree species, but also a facilitator of non-native tree invasion. 相似文献
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为筛选出适宜粤东地区林分改造的乡土阔叶树种,通过分析火力楠、山杜英、毛果青冈、红锥和中华楠5个树种早期生长的保存率、树高、地径和冠幅等指标,结果表明,5个树种的保存率均在90%以上,具有较强的适应性;树高、地径和冠幅三者之间呈显著正相关,各树种间也存在一定差异;聚类分析表明,5个树种分为3类,火力楠和山杜英为速生树种,红锥和毛果青冈次之,中华楠生长最慢。5个树种均为优良珍贵乡土阔叶树种,适应性强,在林分改造中,可根据树种生长特性进行合理搭配,确保改造效果。 相似文献