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《生态经济(学术版)》2003,(1)
近年来,智利大力打击濒危物种走私活动并取得了显著成绩。据智利官方在《濒危野生动植物种国际贸易公约》第十二次缔约方大会上公布的统计数据,仅2002年1~9个月,该国就在各边境口岸查获各类动植物种走私品668件。被查获的这些濒危物种多为外来走私]塔以及与秘鲁、玻利维亚和阿根廷直接相连的边境城市。智利在《濒危野生动植物种国际贸易公约》注册并受到保护的本国物种现有民区的羊驼和鸵鸟以及深海水域的鳕鱼等。负责打击物种走私的政府机构是国家海关总局、农牧产品检验检疫局和国家林业局。仅农业部下属农牧局派驻到各边境口岸的检查… 相似文献
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湖南八大公山国家级自然保护区国家重点保护和珍稀濒危植物区系分析 总被引:2,自引:0,他引:2
从属和种的水平上分析了八大公山国家级自然保护区国家重点保护和珍稀濒危植物的区系成分特点。结果表明,该保护区共有国家重点保护和珍稀濒危植物31科44属53种。其中有国务院1999年8月4日批准公布的I级重点保护植物4科4属6种,II级重点保护植物18科23属29种;有《中国珍稀濒危保护植物名录》(1987)和《中国植物红皮书》所列的濒危植物2科2属2种,稀有植物14科15属16种,渐危植物15科19属20种。其区系具有由亚热带植物区系向温带植物区系过渡,但热带性质比较明显的特点,而且中国特有成份是该区系中非常重要的组成部分。 相似文献
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在中国乃至世界建筑工程界,中国建筑工程总公司是一面醒目的旗帜.目前,中建总公司的经营地域遍及全国除台湾以外的各省、市、自治区;在境外涉及亚洲、非洲、美洲约二十多个国家和地区. 相似文献
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保护生物多样性已成为可持续发展研究的热点。划定生物多样性保护优先区域是可持续发展的有效途径,而划定方法的研究是关键。本研究融合了遥感解译、模型评估和物种调查技术,将生态系统和物种测度方法进行结合,提出综合性生物多样性保护优先区域划定方法,并以青岛市为例,划定了10个陆地生物多样性保护优先区域和9个海洋生物多样性保护优先区域,面积分别是873.34 km~2和707.23 km~2,主要保护对象为森林、湿地、草地、岛屿、海洋生态系统及特有物种资源、濒危物种资源、渔业资源。该划定方法可为生物多样性保护优先区域划定提供借鉴,推动生物多样性保护和生物资源可持续利用。 相似文献
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工程施工过程中,经常发生由于业主要求,或现场施工条件的变化,或国家政策法规改变等原因引起的工程变更.工程变更一般包括以下几种:(1)更改工程有关部分的标高、基线、位置和尺寸:(2)增减合同中约定的工程量;(3)改变有关工程的施工时间和顺序;(4)其他有关工程变更需要的附加工作. 相似文献
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《经济技术协作信息》2010,(7):F0004-F0004
濒危动物是指所有由于物种自身的原因或受到人类活动或自然灾害的影响而有灭绝危险的野生动物物种。从广义上讲,濒危动物泛指珍贵、濒危或稀有的野生动物.从野生动物管理学角度讲,濒危动物是指《濒危野生动植物种国际贸易公约》附录所列动物,以及国家和地方重点保护的野生动物。 相似文献
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杨灿 《湖南经济管理干部学院学报》2012,(6):130-133
海棠是我国的传统名花之一,随着历史的发展变迁,海棠在人类的物质和精神生活中的地位渐高,人们根据海棠的姿态、习性、品质等特点产生丰富的联想,并借其寄情寓义,使海棠具有丰富的文化内涵和审美价值,并形成了一种以海棠为核心的文化现象和文化体系,成为中国灿烂的花卉文化中的海棠文化。从生态美学的视角解读我国古典文学作品中的海棠,发现海棠有着独特的美学意象。 相似文献
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Yunnan has attracted great attention,from the world for its ideal location, advantaged climatic condition, rich bioh;gical resources and cheap labor forces. All these advantaged conditions make Yunnan become one of the most potential places in the worhl for flower production and trade, In recent years, more and more foreign companies from different countries have forestalled their facilities in Yunnan, joining in the development process of Yunnan floriculture industry. The flower industry in Yunnan Province started to develop towards the end of the 1980s, Flower was only planted one hectare output totaled 35.000 yuan, and the planting area of the flower had 17,000ha and the sales volume of the flowers had 6 billion yuan in 2006. Yunnan Province accounts for 50% of the nation's total cut flower production. Yunnan's .flower industry' has become Asia's largest fresh-cut flower production and export base and sprout breeding and production base. And it has stepped into one of the major fresh-cut.flower production areas in the world and a modern flower trading center that is leading in China. 相似文献
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Using the national income/expenditure distribution data from 111 countries, we decompose total inequality between the individuals in the world, by continents and regions. We use Yitzhaki's Gini decomposition which allows for an exact breakdown of the Gini. We find that Asia is the most heterogeneous continent; between-country inequality is much more important than inequality in incomes within countries. At the other extreme is Latin America where differences between the countries are small, but inequalities within the countries are large. Western Europe/North America is fairly homogeneous both in terms of countries' mean incomes and income differences between individuals. If we divide the world population into three groups: the rich (those with incomes greater than Italy's mean income), the poor (those with incomes less than Western countries' poverty line), and the middle class, we find that there are only 11 percent of people who are "world middle class"; 78 percent are poor, and 11 percent are rich. 相似文献
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花卉主题园是现代园林中非常流行且能够突出特定花卉主题的观赏性游园,旨在以植物景观本身突出花卉的主题。八仙花花朵硕大繁密、花色丰富多变、花期长、株型优美,是著名的园林景观植物,但目前国内外将八仙花单独作为一种主题花卉的景观实践研究还较少。以上海共青森林公园八仙花主题花园为例,探讨了其设计理念与原则,重点阐述了品种选择、微地形塑造、旱溪生境营建、植物配置等景观营造关键技术,以期为花卉主题园的建设及八仙花的景观营建提供科学依据 相似文献
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对中国2010-2016年31个省(直辖市、自治区)高校研发人员集聚和科技创新能力的协调关系展开研究。通过省域高校研发人员区位熵来衡量其集聚水平;综合考量高校科技项目和经费、科技成果及技术转让、科技获奖等方面,采用因子分析法计算省域高校科技创新能力;通过协调发展系数和Sperparman秩相关系数分析高校研发人员集聚与科技创新能力的协调关系。研究结果表明:现阶段我国高校研发人员集聚分布呈现出明显的区域性差异,存在不平衡性,集聚程度高的省份主要集中于东部和东北部地区;省域高校科技创新能力的分布状况与区域经济发展程度具有一致性,呈现“东高西低”态势;高校研发人员集聚与科技创新能力具有相关关系,但协调性总体偏低,研发人员集聚滞后和科技创新能力滞后的情况均存在,总体上看协调发展关系呈现下降趋势。在新的历史阶段应保障高校研发人员在相对稳定的基础上合理有序的流动,加强区域高校合作,优化高校科技创新环境。研究为促进高校研发人员集聚与科技创新能力协调发展提供参考。 相似文献
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韩学伟 《生态经济(学术版)》2012,(1):203-206
生态旅游庄园是农家乐旅游的高级形式,是生态旅游庄园是浓缩版的旅游景区,麻雀虽小,五脏俱全。生态旅游庄园按照核心主题可以分为农事体验型、花果观赏型、度假山庄型、运动健身型、美食餐饮型、养生保健型等六种类型;生态旅游庄园综合经营模式概括为:一个核心主题、科学的规划建设、多个旅游吸引物系统、丰富的项目策划和成熟的四季节庆。生态旅游庄园的可持续发展包括生态可持续、经济可持续、社会可持续。 相似文献
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Comprehensive and international comparable leading indicators across countries and continents are rare. In this paper, we use a free and instantaneous available source of leading indicators, the ifo World Economic Survey (WES), to forecast growth of Gross Domestic Product (GDP) in 44 countries and three country aggregates separately. We come up with three major results. First, for more than three-fourths of the countries or country-aggregates in our sample, a model containing one of the major WES indicators produces on average lower forecast errors compared to a benchmark model. Second, the most important WES indicators are either the economic climate or the expectations on future economic development for the next six months. And third, adding the WES indicators of the main trading partners leads to a further increase in forecast accuracy in more than 50% of the countries. It seems therefore reasonable to incorporate economic signals from the domestic economy’s main trading partners. 相似文献
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对广州市主城区9处下沉式绿地植物种类及其配置进行调研,采用AHP层次分析法,从植物生长势、观赏性2个方面的11个主要指标,来构建植物综合评价模型,结合文献资料进行综合评价。在34种草本植物中筛选出生长势强、观赏性好、抗倒伏、虫害少等优良性状的8种植物:芦竹(Arundo donax)、狗尾草(Setaria viridis)、玉蝉花(Iris ensata)、花叶艳山姜(Alpinia zerumbet)、黄菖蒲(Iris pseudacorus)、翠芦莉(Ruellia brittoniana)、鹤望兰(Strelitzia reginae)和山菅(Dianella ensifolia),建议将此优势种类作为广州下沉式绿地建设的优先选择植物。此外,还分别针对不同类型下沉式绿地给出植物配置建议。 相似文献
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Paul Winters Rinku Murgai Elisabeth Sadoulet Alain de Janvry George Frisvold 《Environmental and Resource Economics》1998,12(1):1-24
The impact of global climate change on developing countries is analyzed using CGE-multimarket models for three archetype economies representing the poor cereal importing nations of Africa, Asia, and Latin America. The objective is to compare the effects of climate change on the macroeconomic performance, sectoral resource allocation, and household welfare across continents. Simulations help identify those underlying structural features of economies which are the primary determinants of differential impacts; these are suggestive of policy instruments to countervail undesirable effects. Results show that all these countries will potentially suffer income and production losses. However, Africa, with its low substitution possibilities between imported and domestic foods, fares worst in terms of income losses and the drop in consumption of low income households. Countervailing policies to mitigate negative effects should focus on integration in the international market and the production of food crops in Africa, and on the production of export crops in Latin America and Asia. 相似文献