共查询到19条相似文献,搜索用时 375 毫秒
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1 世界花卉产业的现状及发展趋势自 2 0世纪 90年代以来 ,全球花卉生产和销售 ,始终保持旺盛发展势头。 1991年世界花卉消费额已达到10 0 0亿美元 ,预计到本世纪末将达到 2 0 0 0亿美元。我国花卉产业发展迅速 ,近 4年来生产总值从 30亿人民币增加到了 4 8亿人民币 ,出口创汇从 1993年 50 0 0万美元增加到了 1997年 1.3亿美元。据统计 ,全球排名前 10位的花卉出口国是荷兰、哥伦比亚、意大利、丹麦、美国、比利时、卢森堡、以色列、哥斯达黎加、德国和加拿大。1.1 世界花卉产业的发展趋势在一定时期内仍将以多种形式并存第一种依靠现代化… 相似文献
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福建热区发展花卉产业的若干思考 总被引:3,自引:0,他引:3
福建省热区包括漳州、泉州、厦门、莆田、福州等县市,总面积290万hm2,东对台湾,南邻港澳,气候素有“天然温室”之称,具有发展花卉业的区位优势和资源优势。“九五”期间,花卉业已被列为省政府发展农业的十大任务之一。热区花卉业大有可为。1 花卉产业发展前景20世纪50年代初,世界花卉的贸易额还不足30亿美元,但近20年来,世界花卉产业以前所未有的速度增长:1985年世界花卉贸易额为150亿美元,1990年350亿美元,1995年680亿美元,2000年达1600亿美元。无论是美国、日本、荷兰等发达国家,还是墨西哥、哥伦比亚等发展中国家,花卉产业已成为最具活… 相似文献
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“十五”期间,我国花卉产业得到跨越式发展,成为世界花卉生产大国,其面积和产量均居世界第一位。一、花卉产业发展取得了历史性成就生产规模大、效益增长快到2004年底,我国花卉种植面积已达64万公顷,比“九五”期末增长3倍多。年销售额431亿元,比“九五”期末增长近2倍。年出口额达1.4亿美元,比“九五”期末增加5倍。从业人员达到了327万人。花卉经营实体大幅度增加,企业实力逐步壮大全国花卉产业已形成多部门、多行业、多元化投资的良好局面,花卉企业已增加到5.3万家,比“九五”期末增长2.7倍。建基地,创名优,示范群众1“.十五”期末全国重… 相似文献
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世界花卉产业的发展及展望 总被引:2,自引:0,他引:2
花卉产业是一种新兴产业,发展很快,1988年全世界销售总额达到3000亿美元,并以10%的速度递增,年人均消费也逐年增加。全世界花卉出口创汇40亿美元(1987),荷兰占一半。切花保鲜、野生花卉繁育、电子计算机和组织培养等技术广泛应用于花卉生产,取得较大进展,促进了花卉事业的发展。文章提出了发展中国花卉产业的对策。 相似文献
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至2003年,江西省花卉种植面积10411hm^2,销售收入7、41亿元。但是存在着花卉生产规模小:科技含量不高;营销体系不健全等问题。提出了要实施品牌战略、增强创新能力、加强市场网络建设、优化产品结构、培育龙头企业、加大投资力度等今后发展思路。 相似文献
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改革开放10年来,经济林生产得到迅速的发展,板栗、红枣、核桃、柿子等十多种经济林产量都超历史记录。经济林产值超过40亿元,占林业总产值的25%,年创汇3.4亿美元。经济林生产进入一新的发展时期。近10年来经济林发展的特点是树种结构优化,集约经营水平提高,服务体系逐步完善,国内外市场愈来愈广阔。今后要继续稳定政策,增加投入,依靠科学技术,改进服务,稳步发展。 相似文献
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国际生物多样性保护现状与对策 总被引:3,自引:0,他引:3
本文论述了国际生物多样性保护现状与发展趋势、研究目的与研究课题、生态系统的原理在生物多样性保护中的应用,介绍了我国保护生物多样性的概况与成就,并提出了我国保护生物多样性的对策。 相似文献
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《Forest Ecology and Management》1987,18(3):219-236
Broad differences in prices exist between national forest timber and that sold by other public agencies in the western U.S. Using state vs. national forest timber sale data from Montana, the author makes a statistical inquiry into the sources of these price differences and reaches several important conclusions. National forest timber sells for a lower price than state timber because large national forest sales command much lower prices than small national forest sales and, therefore, draw down the average national forest timber price. In general, the larger national forest sales are associated with higher sale development costs and utilize more costly logging systems. More prudent national forest sale planning and development could increase national forest timber receipts substantially and aid in solving one of the national forest system's more perplexing policy dilemmas—below-cost sales. 相似文献
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Chonemorpha fragrans is an endangered medicinal woody climber,regarded among alternative plant sources of camptothecin.Camptothecin is a monoterpene indole anti-cancer alkaloid with annual trade value of over three billion U.S.dollars in the recent,and is used in the production of its analog drugs approved for the chemotherapy of cancer of varied types.Effects of plant growth regulators,culture media strength and photoperi-odic duration on the micropropagation ef ciency of C.fragrans from nodal segment explants were studied on Murashige and Skoog(MS)medium amended with Thidiazuron(TDZ),Benzylaminopurine(BAP)or Kinetin(Kin).Thidiazuron was more ef cient over BAP and Kin when half basal MS medium was used over full or quarter strength.Results of carbon source experiment showed sucrose as the most effective over glucose,fructose,and maltose in the clonal production.Studies on the photope-riodic incubation duration showed 12 h as the best light period and sub or supra-optimal resulted in the production of abnormal and albino micro shoots.Experimental results on the evaluation of physiological,biochemical parameters showed the role of pigment molecules and antioxidant systems in the production of albino micro shoots. 相似文献
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生态环境的恶化已经成为当前国际社会最为关心和最迫切需要解决的问题。本文详细地阐述了森林与水土流失、土壤沙漠化、土壤退化、大气污染和酸沉降、噪声污染之间的关系,并认为应该发展森林来改善人类的生存环境。 相似文献
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Attitudes of human societies toward tree plantations can be a critical factor in determining the source of wood supply in the future. Because human populations will expand substantially in the next century, considerable increases in the demands on native forests will occur. Currently, only a limited amount of tree plantations have been established specifically to provide firewood in developing countries. This may be the result, in part, of a world society that has evolved a general preference for pastures, but an aversion to tree plantations. In total, pastureland and tree plantations amount to 26 percent and 1 percent of the world's land base, respectively. Nevertheless, our actions today will determine whether children in the future collect firewood from natural stands or from tree plantations. It is estimated that a substantial afforestation program could increase the amount of tree plantations to equal 5 percent of the world's land base by the year 2050. Ten billion dollars (United States) is a rough estimate of the annual costs for such a program (assuming no overhead or administrative costs). Most of the wood needs could be met from tree plantations. However, if the world's society wants most of its wood in 2050 to come from natural stands (>80 percent), then tree plantations can be limited to just 1 percent of the land base. 相似文献