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攀援绿化应用爬山虎、地锦、络石、薜荔、凌宵等具有吸盘或气根的藤本植物,沿墙面、石壁、篱笆攀爬来达到绿化的目的。这些植物不需要任何支架和牵引材料,栽培管理简单,其绿化高度可达五六层楼房以上。应用葡萄、紫藤、金银花等具有缠绕性能植物和月季、木香等长蔓性藤本植物,在略加牵引扶持下,攀爬在园林花架、简易棚架及与墙面保持一定距离的垂直支架上,不仅可达到绿化的功效,还可点缀装饰小游园和庭院等。 相似文献
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一、攀援绿化
应用爬山虎、地锦、络石、薜荔、凌宵等具有吸盘或气根的藤本植物,沿墙面、石壁、篱笆攀爬。这些植物不需要任何支架和牵引材料,栽培管理简单,其绿化高度可达五、六层楼房以上。 相似文献
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一、垂直绿化的类型
(一)攀缘绿化
应用爬山虎、地锦、络石、薜荔、凌宵等具有吸盘或气根的藤本植物,沿墙面、石壁、篱笆攀爬。这些植物不需要任何支架和牵引材料,栽培管理简单其绿化高度可达五六层楼房以上。 相似文献
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五叶地锦,又名爬山虎、长春藤,为葡萄科地锦属落叶藤本植物。枝蔓长度相对无限,老皮暗土褐色,1、2a生成熟茎黄褐色,幼枝粉绿色。多分枝,其上生有多数短而小的卷须。卷须先端有圆形吸盘,能吸附在其它物体上使茎蔓向上生长。叶互生,具有4~10cm长的叶柄。叶片掌状,五深裂,裂片卵状,先端尖锐。叶缘重锐齿。叶表平滑暗绿色,秋后昼夜温差大时呈红色,是优良的室外垂直绿化材料,可使高层建筑充满生机。秋季叶色变红,可使秋景更加丰富。五叶地锦的繁殖可播种、压条和扦插。播种育苗要求技术严格,施业工艺繁琐,幼苗期长,出圃慢,费工费时。压条繁… 相似文献
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为了落实省政府“关于十年绿化吉林大地规划纲要”和省绿化委员会拟在我校建立“三叶(五叶)地锦垂直绿化苗木培育基地的任务,我校于1989年开始从北京房山县引入三叶(五叶)地锦一年生幼苗,进行引种栽培试验。以林校苗圃和上营局石砬林场为栽培试验中心,并向省内部分单位推广试种。为了摸清三叶(五叶)地锦习性和生长情况,我们于1989、1990年进行了跟踪调查。三叶地锦和五叶地锦都属葡萄科,地锦 相似文献
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爬山虎又名地锦、爬墙虎,葡萄科,爬山虎属。根与茎蔓可入药,具有活筋止血等功能:爬山虎夏季枝叶茂密,用于绿化房屋墙壁、公园山石、围墙、坡地,既可美化环境,又能降温,目前爬山虎在绿化中已得到广泛应用,尤其在立体绿化中发挥着重要的作用。 相似文献
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E. T. Craswell A. Sajjapongse D. J. B. Howlett A. J. Dowling 《Agroforestry Systems》1997,38(1-3):121-137
Steeply sloping lands are widespread in the tropics. An estimated 500 million people practice subsistence agriculture in these
marginal areas. Continued population growth has led to the intensified cultivation of large areas of the sloping lands, exacerbating
the problem of soil erosion. Although research shows that alley cropping and other contour agroforestry systems can stabilize
the sloping lands, these systems have not been widely adopted by farmers.
The Framework for Evaluating Sustainable Land Management (FESLM) has been tested in sloping land areas in the Philippines.
Sustainable land management must be productive, stable, viable, and acceptable to farmers, while protecting soil and water
resources. Farms on which contour hedgerow intercropping has been adopted meet the multifaceted requirements of FESLM, whereas
the farmers' current practice does not. Appropriate land management measures for particular locations depend on a complex
suite of social, economic, and biophysical factors, and need to be developed in participation with farmers.
The role of agroforestry in sustainable management of sloping lands is the subject of networks coordinated by the International
Board for Soil Research and Management (IBSRAM) in seven countries in Asia (ASIALAND) and four countries in the Pacific (PACIFICLAND).
We review selected outcomes from a wealth of network data. From these results the following conclusions about the sustainability
of various agroforestry systems for sloping lands can be drawn:
• In the Pacific, soil loss from sloping lands due to water erosion under farmers' current practices is episodic, unpredictable,
and possibly not severe;
• Agroforestry systems that utilize legume shrubs, fruit trees, coffee (Coffea spp.) or rubber (Hevea brasiliensis) provide
useful economic returns, but are not an essential component in terms of soil protection because grass or pineapple (Ananas
comosus) planted on the contour are equally effective in reducing erosion;
• Agricultural intensification will lead to nutrient mining, reduction of aboveground biomass, declining yields, and less
soil protection unless external sources of nutrients are used;
• nitrogen can be effectively supplied using legumes;
• Cash derived from hedgerow trees and/or shrubs may providean incentive for their adoption by farmers, as well as funds to
purchase external inputs such as fertilizers;
• Labor may be a major constraint to the adoption of complex agroforestry systems.
We also discuss the information management systems required to effectively manage and utilize the extensive sets of experimental
and indigenous data being accumulated. We believe such information systems can facilitate technology transfer across and between
regions, and improve the efficiency of research into agroforestry and other land-management approaches.
This revised version was published online in June 2006 with corrections to the Cover Date. 相似文献
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Formal and informal institutions and their hierarchy in the regulation of the forest lease in Russia 总被引:1,自引:0,他引:1
The aim of this study is to identify and analyse the institutionalarrangements that regulate the forest lease and related marketsof industrial timber in Russia. A theoretical framework is derivedfrom institutional economics. Institutions, their hierarchyand cohesion are surveyed at constitutional, collective-choiceand operational levels. The organization of the long-term forestlease and its contribution to the sustainable forest managementand development of forest industries are described and regionaldifferences in the organization of forestry are tested. In addition,the expected impacts of the new federal Forest Code are analysed. 相似文献
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本文介绍了世界薪材消耗的现状,概述了因薪材紧缺而滥伐森林带来的几个方面的严峻问题,最后提出了符合我国国情的对策。 相似文献
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随着适宜于制造胶合板的木材供应减少和价格上升,胶合板生产的优势地位已受到相当大的影响。小径材或速生材的利用及胶合板用材树种的扩大是发展胶合板生产最重要的措施。变革胶合板生产工艺可以开发利用新的原料来源、提高劳动生产率、降低生产成本、并使产品多样化。计算机控制和先进的电子技术大大地提高了胶合板生产线的效率和功能,并保证了产品的质量。 相似文献
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据河北省各市(省直属单位)“2005年林业有害生物防治统计报表”统计,全省主要林业有害生物发生面积341532.67hm2,同比上升10.42%。其中森林虫害318760hm2,同比上升10.7%,病害16446.67hm2,同比持平,鼠(兔)害6.320hm2,同比上升17%。此外,荒漠林、灌木林、天然次生林有害生物发生4 相似文献
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近年来,无线寻呼台对森林防火通信的干扰日趋严重,特别是在城乡结合部形成了强大的同频干扰,致使150MHz段通信设备在城乡结合部和城镇内处于瘫痪状态,无法发挥其正常的作用,严重影响了森林防火的预防和扑救工作。因通信不畅造成的损失虽然不是直接的,但由此产生的后果是明显存在的。政府有关部门虽然十分重视这个问题,但受政策和技术条件的制约,一直没有很好的办法排除干扰源,只能建议森林防火部门改用400兆设备避开寻呼台干扰。 森林防火部门几十年来一直使用 150兆设备,已经形成较为完善的通信网,各级防火部门投入… 相似文献