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欧李作为经济栽培、水土保持、生态绿化、美化环境、防风固沙多功能集于一身的小型灌木，在辽西北半干旱地区具有广阔的开发前景，欧李育苗可采用种子繁育、绿枝扦插、埋根繁育、分蘖育苗、嫁接育苗等5种方式，对欧李的开发利用主要是实施荒山绿化、集成建园实施经济栽培。 相似文献
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在沂蒙山区水土保持林的研究中,我们对重要水土保持灌木紫穗槐进行了定位观测研究,充分证明在山区发展紫穗槐具有显著的保持水土的作用。在山丘水土流失地区,大力发展紫穗槐是改善山区造林绿化条件,加速山区开发的有效措施。 1 试验区概况 相似文献
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开发优良灌木树种,促进辽西地区灌木林的发展 总被引：1，自引：1，他引：0
阐述了开发灌木树种的必要性,灌木树种开发利用状况、应用前景、开发途径。开发灌木树种,促进灌木林的发展,对辽宁西部地区发展经济和保护生态具有重大的现实意义。 相似文献
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浅谈沙棘产业化发展现状及存在问题 总被引：1，自引：0，他引：1
《内蒙古林业调查设计》2017,(3):85-87
沙棘是一种具有多种开发利用价值的灌木资源。文章介绍了沙棘的价值及在水土保持、食品开发、医药利用等多领域的应用,并对沙棘产业化发展现状及存在的问题进行探讨。 相似文献
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黄土高原沙棘林水土保持功能研究 总被引：15，自引：0，他引：15
黄土高原水土流失严重,生态系统脆弱,人民群众生活水平低下。植被,尤其是森林植被具有良好的水土保持功能,在防止水土流失、改善生态环境方面具有重要的作用。沙棘(Hippophae rhamnoides Linn.)是一种具有优良水土保持功能和较高经济价值的灌木树种,其医药和保健作用为人们熟知,但对于它的水土保持作用研究并不深入。因此,系统研究它的水土保持功能,不仅对黄土高原的水土保持有重要作用,而且对广大人民群众脱贫致富、提高生活水平有现实意义。 相似文献
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太行山石灰岩区水保林林分结构模式研究 总被引：4，自引：0，他引：4
通过对太行山石灰岩区乔灌、灌木、灌草三类水土保持林林地上现存 19种林分模式调查 ,并通过典型林分模式水土保持功能、生物量比较研究 ,得出乔灌、灌木、灌草三种类型林地上现存林分模式应是针阔、乔灌、灌草混交林分 相似文献
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柠条固沙林适宜的平茬年限和密度的研究 总被引：2，自引：0，他引：2
柠条(Caragana korshinskii)是我国西北地区的重要固沙灌木树种之一,在植被组成、防风固沙、水土保持和灌木草场等方面都起着较大作用,受到各地区林业部门的重视,造林面积逐年增加。 相似文献
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章针对辽西地区林业发展中存在的矛盾和问题，结合实地调查，进行了深层次分析，提出了今后辽西地区林业发展的主要思路：一是大力发展针叶水土保持用材林；二是积极开展坡耕地农林复合经营；三是重视开发生态经济型灌木树种；四是封山禁牧、以法治林。 相似文献
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滇西北地区生态退化成因及其保护与建设对策 总被引：1，自引：0，他引：1
滇西北地区是我国重要的生态功能区，通过对滇西北地区自然和社会经济状况的调查，总结了其生态退化的状况，分析了其生态退化的成因是自然因素和人为活动的结果。并提出了生态保护与建设的对策。 相似文献
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12个桃品种的花芽休眠需冷量和开花需热量 总被引：3，自引：0，他引：3
在浙西南地区研究12个桃品种花芽休眠需冷量和开花需热量生态指标.犹他模型测定结果显示:12个桃品种中,花芽休眠需冷量低的品种为春蜜、超红、中油11号、中油7号、中油4号,约为550～650 cu;其次是丽油5号、仓方早生、燕红、丽油3号、早凤凰,约为650～ 800 cu;需冷量高的品种为新川中岛和赤月,约为900～ 950cu.同一地区不同品种需热量差异较大,同一品种年际间差异相对较小.以生长度天模型试验结果表明:开花需热量低的品种为赤月和丽油3号,大约400 ～ 500 d·℃;其次是新川中岛,大约500～600 d·℃;春蜜、丽油5号、早凤凰、中油4号、中油7号、仓方早生和燕红大约600 ～ 700 d·℃;需热量较高的是中油11号和超红,约为700～800 d·℃.12个桃品种花芽休眠需冷量与开花需热量之间呈乘幂函数曲线显著负相关. 相似文献
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《Forest Ecology and Management》1988,26(1):1-46
A quasi-quantitative subjective assessment was made of the potential development of forestry within the Member States of the European Community, adopting a long-term perspective with a time horizon of 70 years. In making this assessment it was assumed that (a) the Community wished to lessen its dependence on external supplies of wood and wood-based products and (b) actions taken to lessen this dependence, by increasing its own wood supplies including the conversion of agricultural land, must take due account of monetary and non-monetary benefits of forests; an integrated approach linking production and utilisation with conservation, landscape and socio-economic factors embraced by rural development, would be obligatory.The study was in two parts, the identification of: (a) opportunities; and (b) the research-and-development requirements if the opportunities were to be seized.The opportunities for Member States of the European Community were assessed by developing matrices examining three land-use scenarios and three wood-production objectives. In general, the production of sawnlogs is likely to be ‘significantly’ increased by the use of improved (a) genotypes and (b) silvicultural techniques; it is less likely to be increased significantly by the conversion of agricultural land. Improved genotypes and silvicultural techniques will also increase supplies of industrial wood, the benefits being enhanced by the conversion of agricultural land. If punitive transport costs are to be avoided, yields of industrial wood, in areas of radius 70 km, would mostly be sufficient to warrant industrial installations using 4 × 105m3 year−1 and -only to a lesser extent - installations needing 106m3 year−1. In reality, the opportunities differ in the different regions of the Community. Relatively short-rotation forests/tree-crops, producing industrial wood, are likely to be concentrated in the Offshore (Eire3 and the United Kingdom4) and Continental Oceanic Regions, whereas forests in the Mediterranean and Alpine Regions will mainly have protective functions. High-quality, large-dimension sawnlogs will be produced in many parts of the Continental Oceanic Region, particularly the north and centre (Belgium, Denmark, most of the Federal Republic of Germany, western France and The Netherlands).Sixteen research and development requirements were identified. They are concerned with: the better utilisation of existing data and experience; forest decline; fire; stability of forest ecosystems; silvicultural methods, wood quality and end-use; integrated forest management; integrated evaluation of wood and non-wood benefits; marketing, and end-product and process innovation; reactions of the public to changes in land use; reactions of landowners to changes in land use including a consideration of incentives; collaborative forestry ventures; silvicultural options for afforesting agricultural land; responses of trees to stresses; early indications of the performance of mature trees; conservation of trees native to the European Community; and exploitation of genetic resources. 相似文献
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本文介绍了废弃木质材料的相关标准、分类及其回收利用现状,对加强废弃木质材料综合利用提出建议. 相似文献
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长白楤木(Aralia continentalisKitaqawa),别名草本刺老鸦、东北土当归,系五加科楤木属,多年生大型草本植物。近年来随着野生资源的减少及退耕还林的需要和国内外消费者对这种食药兼用的多年生草本植物的认可和需求,各地已经广泛种植长白楤木,但其病害的发生也给长白楤木的生长 相似文献