浅谈彩叶植物在城市绿化中的应用

彩叶植物为生长季节或生长季节的某些阶段全部或部分叶片呈现非绿色的植物.介绍了彩叶植物的分类方法、颜色分类、依据不同的季节选择不同的彩叶植物、市区主要栽植彩叶树种等.     

彩叶植物在园林中的应用

彩叶植物具有色彩鲜艳、成景快、栽培容易、观赏期长的特点，能补充常绿植物的不足，丰富环境色彩，因此成为现代园林景观配置中的重要组成部分。介绍了彩叶植物的定义和分类，彩叶植物配置方式及应用原则，为现代园林中彩叶植物的发展趋势与推广前景提供了借鉴与参考。     

兰州市彩叶植物种类及应用调查

彩叶植物具有丰富多彩的叶色,是园林植物造景的重要组成部分。通过对兰州市居住区绿地、公园绿地、单位附属绿地、街旁绿地及道路绿地的彩叶植物种类及应用情况进行的调查和分析,结果表明:调查范围内,兰州市选用的彩叶植物约25种,隶属于21科23属,以灌木和乔木居多,其中应用较多的植物有银杏、红叶李、金叶女贞、紫叶小檗等。根据调查结果,对兰州彩叶植物应用状况进行分析和阐述,并提出问题与建议。     

营口鲅鱼圈区彩叶树种应用调查分析

该文通过对营口鲅鱼圈园林中彩叶植物应用种类及现状的调查,分析存在的问题,并在此基础上就目前鲅鱼圈区彩叶树种进一步的应用提出建议.     

彩叶植物及园林应用

简要介绍彩色植物的分类,呈色的影响因素,园林配置方式和研究、应用的发展方向。     

彩叶植物在长沙市园林中的应用

阐述了彩叶植物的定义、分类、应用形式和现状,并结合对长沙市彩叶植物的园林应用的实地调查,从彩叶植物种类、景观特点等方面对长沙市公园绿地、居住小区进行了研究,分析了其缺点和存在的问题,并提出了相应建议。     

彩叶植物的观赏价值及应用前景探讨

文章在阐述彩叶植物具有极高观赏价值的基础上，概括了彩叶植物在园林中的应用形式，并指出彩叶植物具有广阔的市场发展前景。     

华南彩叶植物及其园林应用

近些年来由于多种类型彩叶植物的出现。暴露了现有的彩叶植物概念的局限性。通过对彩叶植物的深入调查观察，综合其特征，文章提出了新的彩叶植物概念；并就华南地区彩叶植物种类的多样性，详述了该区常见彩叶植物的配置方式以及存在问题．这将利于城市园林景观的美化和优化。     

呼和浩特市彩叶植物种类及园林应用研究

文章首先介绍了彩叶植物的定义和分类;其次,在实地调查的基础上总结呼和浩特市园林绿地中现有常色叶植物、秋色叶植物、春色叶植物、双色叶植物和斑色叶植物等彩叶植物资源;最后,通过对彩叶植物应用形式和存在问题的分析,提出几点个人建议,希望在呼和浩特市园林绿化中合理应用彩叶植物提供帮助。     

廊坊市区彩叶植物应用调查

廊坊市区园林彩叶植物根据色彩在叶面上的分布和观赏期可分为春色叶类、秋色叶类、双色叶类、常色叶类和斑色叶类;园林应用方式主要有行道树、园景树、彩篱、模纹花坛、风景林和垂直绿化;园林应用中存在种类多样性低、种类结构不平衡、养护管理不到位等问题。最后对廊坊市园林彩叶植物的引种、选择和应用提出建议。     

徐州市彩叶树种及其应用的调查与分析

彩叶树种作为一类特殊的观赏树种,在园林绿化中的应用越来越广泛。该文对徐州市目前的彩叶树种及应用现状进行了调查和分析。为进一步丰富徐州市的园林景观,提出了一些建议:(1)多应用一些彩叶乡土树种;(2)进一步优化树种的配置;(3)加强养护和管理。     

Quantity of plant leaf area on three major public squares in Kunming City,China

Regressive formulae to calculate the quantity of plant leaf area for 13 species of ornamental plants were set up based on investigation data of 30 species on 3 major public squares (Dongfeng square, Shengli square and Guandu square) in Kunruing City, China, which were applied to calculate quantities of plant leaf area of these 13 species. The quantities of plant leaf area for the other 17 ornamental plant species on these squares were directly measured, and the total quantity of plant leaf area of each studied square was obtained individually. The results showed that the quantity of plant leaf area on Shengli square with ornamental plants structure composed of arbor tree species, shrub tree species and turf grass was highest among the three squares. It is believed that the design model of multi-storied vertical structure and proper tending of plant community could not only increase the quantity of plant leaf area, but also play an important role in generating ecological and landscaping benefits.Some corresponding suggestions were put forward on the basis of comprehensive analyses on the plant leaf area quantity of the three representative squares in Kunming urban area.     

室内观叶植物的栽培和养护

介绍了室内观叶植物的基本生活习性及其管理、养护技术.     

施肥对叶用银杏生长及叶产量的影响

通过对沿海盐碱地生长的5年生叶用银杏实生苗施用N、P、K、NP、NK、PK和NPK等7组肥料试验结果表明,施肥对苗高高峰期的生长有明显的促进作用,其中用N、P等部分处理全年苗高生长量较大;所有施肥处理叶产量的增加值均大于对照,但以N肥效果最好。因此,在沿海盐碱地上应施用N肥或P肥来培育银杏叶用园。     

南京栖霞山野生药用维管植物资源开发利用及保护策略

通过普查柄霞山药用植物资源,评估了栖霞山现有药用植物资源的开发利用价值,讨论了栖霞山在对药用植物保护和开发过程中存在的问题,并根据南京药用植物的特点提出对栖霞山药用植物资源保护及开发利用的建议和措施.     

The emergence of beech leaf disease in Ohio: Probing the plant microbiome in search of the cause

American beech (Fagus grandifolia) is the target of a newly emerging disease in North America called beech leaf disease (BLD) that affects and disfigures leaves and which can lead to tree mortality. Beech leaf disease may be caused by a newly recognized subspecies of the anguinid nematode Litylenchus crenatae subsp. mccannii, but the associations of this nematode with bacterial and fungal taxa are unknown. We examined microbial communities associated with beech leaves affected by BLD in a 16‐year‐old American beech plantation using molecular methods. We detected L. crenatae subsp. mccannii in anywhere from 45% to 90% of leaves depending on the degree of visual BLD symptoms. Approximately 37% of asymptomatic leaves contained L. crenatae subsp. mccannii, whereas 90% of buds associated with symptomatic leaves contained L. crenatae subsp. mccannii. We found that fungal communities on leaves and buds were unaffected by BLD, but bud and leaves had significantly different fungal communities. Bacterial communities on buds also were unaffected by BLD, but bacterial communities were significantly different between symptomatic and asymptomatic leaves suggesting that the nematode could be altering the community of bacteria on the leaves. Clone libraries indicate that Wolbachia, an intracellular endosymbiont of arthropods, was found only on symptomatic leaves and buds associated with either symptomatic or asymptomatic leaves. In addition, only symptomatic leaves contained taxa in the genus Mucilaginibacter, which previous studies suggest could produce exopolysaccharides. These bacterial taxa could represent a marker for the vector of L. crenatae subsp. mccannii that enables spread between trees and a possible endosymbiont that could facilitate nematode feeding and establishment on nematode infested leaves. Our results are the first to examine changes to the leaf microbiome of this newly emerging pest and may aid identification of mechanisms associated with the spread and success of L. crenatae subsp. mccanni.     

怀化市园林植物主要病虫调查研究

对怀化市园林植物主要病虫进行了调查,并详细介绍了两种最严重但人们又陌生的虫害,提出了相应的病虫害防治方法,为园林管理工作提供参考。     

珠海市外来入侵植物调查

据初步调查统计,珠海市共有外来入侵植物30科61属67种,多为草本.对这些植物的入侵途径和危害进行了分析,并提出一些防治建议.     

忍冬科植物在南京园林中的应用及其前景

忍冬科植物其形态优美,既可以观花赏果,还具有芳香,是亚热带和暖温带应用前景广阔的园林观赏植物,可为园林造景提供丰富的造景材料。介绍了南京园林中常见忍冬科植物、已引种多年适应性较好值得在南京推广利用的忍冬科植物和南京园林中可引进的忍冬科新品种,表明南京可利用的忍冬科植物资源较为丰富。     

岳阳市观赏植物造景应用评价

在对岳阳市城市观赏植物区系、植被与群落调查基础上,对观赏植物进行了园林应用分类,并对秋色叶植物和观果植物进行应用评价,提出了观赏植物造景应用方式.