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1.
By using biological five points,expert consultation and fuzzy comprehensive evaluation,the species,phenological ornamental characteristics,and landscape application of colored-leaf trees in Lhasa City were surveyed systematically. The results show that there are 42 species of colored-leaf trees in Lhasa City,belonging to 31 genera and 18 families,of which there are 5,19,and 18 species of spring,autumn,and common colored-leaf trees,accounting for 11.90%,45.24% and 42.86% of total number of the investigated tree species respectively. It is clearly seen that there are too few species of spring colored-leaf trees in the city. There are 19 and 17 species of trees possessing red and yellow leaves,while the leaves of other 6 species of colored-leaf trees are shown in other colors,and the number of their species accounts for 45.24%,40.48% and 14.28% of total number of the investigated tree species respectively. The best ornamental periods of spring,autumn and common colored-leaf trees in Lhasa City average 38.4,41.8 and 251.8 d respectively. Prunus cerasifera Ehrhar f. atropurpurea Rehd.,Ulmus pumila L.,Populus × beijingensis W. Y. Hsu,and Salix alba are applied most frequently in Lhasa City,and their relative frequency is 18.67%,10.29%,9.91% and 8.95% respectively. According to the comprehensive assessment value of their ornamental characteristics,the ornamental characteristics of 15 species of colored-leaf trees in Lhasa City are good or very good,and there is a positive correlation between the comprehensive assessment value and relative frequency. Based on the investigation,the current application situation and problems of colored-leaf trees in Lhasa City were analyzed,and solutions to the problems were proposed.  相似文献   

2.
青岛地区彩叶树种的综合评价研究   总被引:3,自引:1,他引:2  
为丰富青岛地区彩叶植物种类,探索基于层次分析法对引种到青岛地区的彩叶树种进行定性与定量评价的途径。以引种到青岛地区的34种彩叶树种为评价对象,通过2个生长季节的露地栽培试验,对其生物学特性、生态习性及观赏价值进行观测,利用层次分析法对上述树种进行综合评价研究。结果表明:34 种彩叶树种根据综合评价分值高低共分为4 个级别,Ⅰ级(>4.0)为综合应用价值高的树种,共9种;Ⅱ级(3.5~4.0)为综合应用价值较高的树种,共10 种;Ⅲ级(3.0~3.5)为综合应用价值一般的树种,共11种;Ⅳ级(<3.0)为综合应用价值较低的树种,共4 种。建议综合价值高的树种在青岛市园林景观工程中重点推广应用,本研究首次对青岛地区彩叶树种进行综合评价研究,可为合理开发利用彩叶树种提供一定的理论依据和参考。  相似文献   

3.
With the gradual improvement of living standard, the public demands on landscaping have focused more on quality than on quantity, and plant furnishing has grown from singular green plants to colored-leaf plants with multiple layers. Confi guration of colored-leaf plants follows certain principles and patterns to enrich the beauty of plant landscaping, construct colorful urban green spaces, satisfy increasing application and aesthetic needs of the public, and reflect value of plant landscaping.  相似文献   

4.
光照对植物合成花色素苷的影响研究进展   总被引:1,自引:0,他引:1  
花色素苷决定着花卉、果实及彩叶植物叶片的颜色,对植物的观赏性有着重要价值,已受到人们的广泛关注。近几年来,对于外界环境影响植物花色素苷合成的研究已有相关报道,但都是一些综合性的阐述。对于光照影响植物花色素苷的研究,缺乏更为系统和深入的论述。依据国内外近几年的相关文献,在阐述植物花色素苷合成机理的基础上,针对光照这一外界环境因子,综述了光照时间、不同光质及光照强度对于植物花色素苷合成的影响。指出了对于一般植物,光照时间越长,越有利于其合成花色素苷;在不同的光质中,对合成花色素苷最有效的是蓝光和紫外光;对于一般植物,光照强度越大,越有利于合成花色素苷。还分析了目前关于植物花色素苷研究尚存在的问题,并展望了今后的研究方向,以期为今后的研究提供一些参考。  相似文献   

5.
相思类树种外植体繁殖研究进展   总被引:3,自引:0,他引:3  
相思类树种生长速度快,适应性强,养地能力强,在中国南方广泛引种栽培,是南方大力发展短周期工业原料林的重要树种。根据近年来研究报道,笔者主要讲述了相思类树种的外植体在组培快繁和扦插繁殖中的应用情况,并在此基础上提出了当前利用外植体繁殖研究的发展建议,为今后解决中国相思类树种在推广和应用中的种苗问题提供借鉴和参考。  相似文献   

6.
‘红霞杨’引种栽培技术研究   总被引:1,自引:0,他引:1  
为了丰富北京地区彩叶树品种,扩大‘红霞杨’的种植范围,将‘红霞杨’从四川成都引种到北京房山,进行了物候期观察、叶色变化观察、扦插繁殖、嫁接繁殖、土壤及光强适应性试验。结果表明:‘红霞杨’在北京房山能完成一个完整的生命活动周期;扦插繁殖成活率在80%以上;嫁接繁殖成活率在85%以上;在垃圾土、牧场土及建筑土中能生长,但长势不良,在苗圃土中生长良好;彩色叶片对光强的应激反应比较敏感,强光下叶色鲜艳,但有焦叶现象,弱光下叶色会返绿,且生长较弱,在75%的轻度遮阴下生长良好,既不焦叶,也能呈现橘红、金黄、黄绿一树三色的彩色效果,绿化时可以选择栽植在有适度遮阴的地块,会出现与众不同的彩色景观。  相似文献   

7.
To analyze the basic conditions of constant colored-leaved tree species in Tibet, this study applied the "biological five-point method" to investigate the plant communities layer by layer, investigated landscape plant species and their landscaping application in Tibet. The results showed that(a) there are 40 constant color-leaved species(including varieties) in Tibet, belonging to 35 genera, 22 families, including 26 tree species and 16 shrub species. In terms of color, 22 species are yellow, 9 purple, 7 red and 2 others, occupying 55.00%, 22.50%, 17.50% and 5.00% of the total constant color-leaved species, respectively.(b) In the tree layer, the species ranking the top 2 of the importance value list are Prunus cerasifera Ehrhar f. atropurpurea Rehd. and Photiniax serrulata ‘Rubens' with an importance value of 26.063 and 9.035; in the shrub layer, the species ranking the top 3 of the importance value list are Ligustrum × vicaryi Hort, Berberis thunbergi var. atropurpurea Chenault, Platycladus orientalis cv. Aurea Nana with an importance value of 22.577, 18.987 and 10.529.(c) The most-applied species belong to the Rosaceae(9), Leguminosae(5), and Oleaceae(3), accounting for 22.50%, 12.50% and 7.50% of the total investigated constant color-leaved species, respectively.(d) Most of the investigated species grow well, but some of them including Berberis thunbergii var. atropurpurea Chenault grow moderately, Loropetalum chinense var. rubrum, Aucuba chinensis var. iegata grow poorly, and the causes of poor growth should be explored further or application of these species should be controlled. In addition, pertinent suggestions were put forward in view of major problems in the application of constant color-leaved species in Tibet.  相似文献   

8.
Ground cover is a necessary component of highway green space, and as a background color of landscape, it enriches landscape hierarchy, reflects regional characteristics, and reduces maintenance cost. By analyzing application of ground covers in some sections of 6 highways in Beijing, China, selection standards, application species, and planting designs of ground covers in highway green spaces of Beijing were explored, so as to enrich the application species, optimize landscape designs, and enhance the application of under-bridge ground covers.  相似文献   

9.
为进一步丰富昆山城市园林绿化植物品种并积极开发利用乡土野生观赏植物资源,选取昆山生态森林公园内的60种野生观赏植物资源作为研究对象,通过构建由观赏价值系数、濒危系数、繁殖难易系数、抗性系数、蕴藏系数和生境适宜性系数6项指标组成的评价体系进行评价分析,确定60种观赏植物的优先开发序。研究结果表明:第一类的夏至草、益母草等15种植物在昆山极具推广应用价值,第二类马齿苋、野菊等6种植物也可在园林建设中积极推广,第三类以及第四类共39种植物的推广应用价值意义不大。通过综合评价,可为昆山地区野生观赏植物资源的开发利用提供参考。  相似文献   

10.
济南市木本园林植物资源调查与分析   总被引:3,自引:1,他引:2  
张鹤  周君 《中国农学通报》2015,31(22):148-151
为全面系统地掌握济南市木本园林植物的种类组成、生活型、季相特点以及应用现状,对济南市的木本园林植物进行全面、具体、系统、深入的调查。调查结果显示,济南市木本园林植物共计535种(包括变型、亚种和栽培变种),隶属于77科199属。其中裸子植物5科16属49种,被子植物72科183属486种(含双子叶植物69科174属467种,单子叶植物3科9属19种),济南市木本园林植物树种较为丰富。乔木植物286种,占所有种的53.4%;灌木植物216种,占所有种的40.4%;藤本植物33种,占所有种的6.2%,乔、灌类植物都比较丰富,藤本比较缺乏。所有树种中常绿树种103个,占所有种的19.25%;落叶树种432个,占所有种的80.75%;落叶树种占据优势。济南市的木本植物应用形式较为多样,但创新性应用不多。济南市木本园林植物应用方面存在的问题有:(1)济南园林树种数量较多,但优质利用的却不多;(2)济南市常绿树种应用较少;(3)乡土树种应用不够。建议:(1)科学搭配城市园林绿化树种;(2)推广栽植乡土树种;(3)积极引种驯化。调查结果为济南的木本植物资源可持续利用提供了可靠的科学理论依据。  相似文献   

11.
熵AHP法对鸢尾宿根花卉的综合评价   总被引:5,自引:1,他引:5  
为了能够让引种工作者在引种材料较多时定量的比较宿根花卉观赏性状及景观应用价值,从形质性状、开花性状、生长性状等方面确定了鸢尾宿根花卉评价的3级指标,采用层次分析法(AHP法)测算指标权重,并采用熵技术对权系数进行修正,从而得到鸢尾宿根花卉的综合评价模型。利用该模型对沈阳市植物园近几年引种栽培的鸢尾宿根花卉的50个种和品种进行了综合评价并分级,其中Ⅰ级的有10种、Ⅱ级的有18种、Ⅲ级的有15种、Ⅳ级的有7种。研究为鸢尾宿根花卉在园林绿化中的应用提供了一定的理论参考。  相似文献   

12.
功能性低聚糖的生理功能及其在食品中的应用   总被引:1,自引:0,他引:1  
综述了功能性低聚糖的种类和生理功能,常见功能性低聚糖的性质及其在食品中的应用,并对其应用前景进行了展望。  相似文献   

13.
海棠树种资源的园林特性及其开发利用   总被引:11,自引:2,他引:11  
海棠素有“国艳”之美誉,是中国传统名花之一,种类繁多,栽培历史悠久,文史底蕴深厚。但目前对海棠树种资源缺乏系统整理,园林绿化应用仍局限于少数传统种类和品种,开发利用的途径也比较单一。依据相关文献,概述了中国园林绿化中已经应用或有潜在应用价值的海棠树种资源的分类学归属、主要植物学特征和观赏特征,总结了海棠文化的内涵和表现形式,阐述了海棠树种在古典和现代园林中的配置方式和应用形式,指出了海棠树种资源在园林应用开发方面存在的问题,并提出开发对策,展望了应用前景。  相似文献   

14.
水曲柳是中国重要的用材树种,也是中国东北地区重要的造林树种之一。为了对该树种有全面的认识和了解,本文就水曲柳生理学、生态学、遗传改良和繁育技术等作了综述和探讨,并提出今后水曲柳的研究应集中在以下几个方面:水曲柳大径材培育,水曲柳体胚,水曲柳作为园林绿化树种的应用,水曲柳药用价值的开发应用等,对其研究方向进行了展望,以期为后续的相关研究提供参考。  相似文献   

15.
济南园林水生花卉综合评价及分级   总被引:1,自引:0,他引:1  
选择合适的园林水生花卉,为日后济南园林水景绿化提供科学合理的依据和指导。采用问卷调查法与专家评价法筛选45种观赏性高的水生花卉,专家对其进行综合评价分级。在2轮专家评价后,其评价的分级结果为:综合评价为Ⅰ级的水生花卉共有12种(黄菖蒲、花菖蒲、菖蒲、红蓼、香蒲、芦苇、芦竹、花叶芦竹、水生美人蕉、再力花、莲(荷花)、睡莲),在济南园林水景中的应用价值较高;综合评价为Ⅱ级的水生花卉共有16种,综合评价为Ⅲ级的水生花卉共有6种,Ⅱ和Ⅲ级水生花卉应用价值逐渐降低;综合评价为Ⅳ级的水生花卉共有11种(水莎草、磚子苗、水毛花、巴天酸模、石龙芮、水芹、泽芹、苹(田字萍)、狐尾藻、豆瓣菜、眼子菜),Ⅳ级水生花卉不太适合在济南园林水景中的应用。  相似文献   

16.
To know the species composition, life form, seasonal features and application of woody landscape plants in Jinan City, woody landscape plants in the city were investigated comprehensively. The investigation shows that there are 535 woody landscape plant species in the city in total(including variants, subspecies and cultivars), belonging to 199 genera of 77 families. Among the 535 species, there are 49 gymnosperm species of 16 genera, 5 families, 486 angiosperm species of 183 genera, 72 families(including 467 dicotyledon species of 174 genera, 69 families, 19 monocotyledon species of 9 genera, 3 families). The fi gures refl ect rich woody landscape plants in Jinan City. There are 286 tree species, accounting for 53.4% of the total species; 216 shrub species, accounting for 40.4% of the total; 33 vine species, accounting for 6.2% of the total, thus tree and shrub species are diversifi ed, while vine species are limited. Among all tree species, there are 103 evergreen species, accounting for 19.25% of the total; 432 deciduous species, accounting for 80.75% of the total; so deciduous tree species occupy a prominent position. Woody plants in Jinan City are applied in diversifi ed forms, but seldom in innovative forms. Problems in the current application of woody landscape plants in the local area are summarized as(a) there are diversifi ed tree species, but only a few of them are applied in high effi ciency;(b) evergreen tree species are less used;(c) indigenous tree species are insuffi ciently used. Therefore, suggestions are given as(i) combine landscape plants scientifi cally;(ii) promote indigenous tree species;(iii) introduce and domestic new species actively. The investigation results provide scientifi c theoretical support for the sustainable utilization of woody plant resources in Jinan City.  相似文献   

17.
Taking 5 representative comprehensive universities in different locations of Chengdu City for example, this paper analyzed plant composition on the 5 campuses, i.e. Sichuan University, University of Electronic Science and Technology of China, Southwest Jiaotong University, Southwestern University of Finance and Economics, Chengdu University of Technology, as well as the application ratio of trees, shrubs, grasses as well as ground cover, coniferous plant, broad-leaved plant, deciduous plant, and evergreen plant. Plants in the 3 functional areas of the 5 campuses were investigated, application frequency of plants in each functional area was recorded and measured, and application differences of plants in different functional areas were compared and distinguished. Species confi guration, application frequency and species type, species richness, diversifi ed ornamental effect and life form on the campuses were analyzed.  相似文献   

18.
There are a variety of woody climbing plants distributed widely in Chongqing City, and they are loved by landscape designers due to their special form and saving space. In respect of actual application,there is a big difference between various species of woody climbing plants in terms of proportion. In this paper, woody climbing plants in Chongqing City were investigated. The results show that there are74 species of woody climbing plants suitable for landscape in Chongqing City. The research can provide reference for the application of woody climbing plants in landscape greening in Chongqing City in future.  相似文献   

19.
近红外光谱在植物种及品种鉴定中的应用   总被引:1,自引:1,他引:1  
为了研究植物品种的有效鉴定方法,综述了国内外近10年近红外光谱分析技术在粮食作物、经济作物、药用植物等种及品种鉴定中的应用。发现该技术在粮食作物和药用植物中的应用较多,且准确性较高,在经济作物中的应用相对较少,且建模方法比较单一,在饲草作物和能源植物中的应用目前还鲜有报道,今后还需进一步完善品种鉴定模型,实现更多植物种及品种的准确鉴定。  相似文献   

20.
After investigating species and application forms of ground covers in Botanical Garden of Chengdu, the application quality evaluation system was established from the perspective of ornamental, adaptive and applicable characteristics of ground covers, AHP and K-Means adopted to evaluate and grade major ground covers. The results showed that there are 93 ground cover species in Botanic Garden of Chengdu, belonging to 82 genera of 47 families. Major application means of the ground covers in the garden were introduced, covering fl ower bed, roadside, waterfront, under woods, lawn, rockery decoration. Application quality of the 38 major ground covers was evaluated comprehensively, and the qualifi cation rate achieved 97.39%, i.e. these plants are able to meet ecological, beautifying and social functions in the garden.  相似文献   

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