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1.
一、民族地区经济发展的重要意义我国少数民族地区,从行政区划层次看,主要包括内蒙古、新疆、西藏、宁夏、广西5个自治区和四川、贵州、云南、甘肃、青海5个省份。10省区自治地方人口占全国自治地方总人口的87.9%;少数民族人口占全国少数民族总人口的86.9%。从地理区位角度看,10省区主要分布在西部,故称西部民族地区。西部民族地区的发展具有重要  相似文献   

2.
我国从2000年开始正式启动西部大开发战略,准备用50~100年的时间开发我国西部资源,提高西部经济实力。推行这一战略主要出于以下考虑:落实邓小平“两个大局”的思想。改革开放前20年,西部地区让沿海地区优先发展;到2000年,国家经济建设重心西移,开发西部是区域发展思想的重大调整,实现区域经济协调发展战略;缩小东西部差距。西部地区人口占全国1/4,资源占全国1/2,疆域面积占全国1/2,全国3000万贫困人口几乎全部分布在西部,没有西部的小康和现代化就没有全国的小康和现代化;是国民经济可持续发展…  相似文献   

3.
西部地区土地面积有683.26万平方公里,占全国71.2%;人口3.13亿人,占全国28.52%,少数民族人口约占全国少数民族总人口的86%。开发西部,活跃西部地区市场是调整我国经济结构的需要;是加速对外开放,连接国内外市场、扩大流通的需要;也是地区间协调发展和保持全国社会、政治稳定的需要;是我国各民族间团结协同、相互支持、共同繁荣的需要。  相似文献   

4.
本文依据国家标准GB/T18972-2003《旅游资源分类、调查与评价》对西沙群岛进行旅游资源调查、分类与评价。研究结果表明,西沙群岛旅游资源拥有8个主类,26个亚类及79个基本类型,分别占全国的100%、83.87%和50.97%;西沙群岛354个旅游资源单体中,特品级旅游资源单体有2个,占总数的0.56%,优良级旅游资源单体41个,占11.58%,普通级旅游资源单体101个,占28.53%,未获等级旅游资源单体212个,占59.89%。西沙群岛旅游资源基本特征为:数量大,类型丰,高等级资源少。西沙群岛旅游资源区可分为宣德群岛旅游资源区和永乐群岛旅游资源区两个基本对等的区域。西沙群岛旅游资源优势表现在资源类型丰富、特色鲜明、环境优良;其劣势表现在高端旅游资源数量少、交通不便、环境容量小、 地缘关系复杂。西沙群岛是中国热带海洋和海岛旅游资源最典型的分布区域,具有重要发展意义。  相似文献   

5.
傅晓莉 《未来与发展》2005,26(5):51-53,50
中国西部地区是长江、黄河、珠江等大江大河的发源地和主要集水区,也是野生动物的主要栖息地,对全国生态环境的影响举足轻重。截至2003年6月,我国已建自然保护区1757个,其中734个分布在我国西部大开发的12个省、区、市及湖北恩施、湖南湘西两个自治州,占全国总数的  相似文献   

6.
论西部地区人力资源开发   总被引:5,自引:0,他引:5  
美国的T·W·舒尔茨提出“土地本身并不是使人贫穷的关键,而人的能力和素质却是贫穷的关键”,这一点在我国西部地区体现尤为突出。西部地区是我国的经济落后地区,拥有全国1/2多的国土面积和1/5多的耕地面积,养活了占全国1/5多的人口,但所制造的经济价值却只占全国经济价值的1/7,在国家规定的592个贫困县中,有487个分布在这些地区,占贫困县总数的82.26%。1996年有贫困人口6191.6万人,占贫困人口总数的76.66%。西部地区经济发展缓慢的原因除了生态环境脆弱、经济基础  相似文献   

7.
中国是世界上生物多样性资源丰富的国家之一。作为全球性生物 巨大多样性"国家,中国具有多种多样的生态系统、植被类型、物种和遗传多样性。中国的植物尤其丰富,30,0 0 0种高等植物产于中国,其中乔、灌木 7,5 0 0种;中国的动物区系同样丰富。据统计已发现有 6,347种脊椎动物(包括 1,2 4 4种鸟类和 3,862种鱼类),特有植物物种多达 1 7,30 0种;特有脊椎动物 667种;中国西部 1 2个省、市、自治区,包括甘肃、贵州、陕西、四川、青海、云南 6省,广西壮族自治区、内蒙古自治区、宁夏回族自治区、新疆维吾尔族自治区和西藏自治区等 5个自治区以及重庆市。土地面积 6 98万km2 ,约占国土总面积的70 %;有全国 75 %的植物物种数和动物物种数。中国西部省区人口总数为 4 0 5亿,其中少数民族人口占相当比重。多民族文化状态造就了中国西部省区成为独特的生物 文化多样性地区;另一方面,中国西部省区面临农村贫困、自然资源与环境的退化和少数民族依然处于边缘状态的现实。本文讨论了中国西部省区的生物与文化多样性及其在经济发展方面的潜力。急需保护该地区的自然和文化,以达到可持续发展的目的。  相似文献   

8.
一、西部大开发中科技工作的几点设想我国西部地区10个省区市,其面积占整个国土面积的55%,人口占全国总人口的22%,GDP占全国GDP的14%。这10个省区市人口较少,幅员辽阔,自然资源丰富,但远离海洋,生态环境脆弱,经济不发达,社会文化事业落后,国民经济素质效益差,结构也很不合理。对此,科技工作在西部大开发中要做好以下四个方面工作,一是帮助西部搞好总体规划;二是以生态环境建设为中心提供科技支撑;三是切实加强西部自身科技能力建设提高自身科技水平,以东西部结合的方式,动员东部科技力量帮助西部提高其科技能力及水平,以解决西部持续发展的问题;四是发挥  相似文献   

9.
青藏高原冰川资源及其分布特征   总被引:11,自引:0,他引:11  
在全部完成中国冰川编目的基础上,精确统计了青藏高原发育有现代冰川36793条,冰川面积49873.44km2,冰川冰储量4561.3857km3,分别占我国冰川总数的79.4%、84.0%和81.6%,是世界上中低纬度地区最大的现代冰川分区。青藏高原现代冰川主要分布在昆仑山、喜马拉雅山和喀喇昆仑山,其数量和规模占冰川总数的一半以上。由于气候和地形要素的不同组合,除念青唐古拉山和冈底斯山外,山脉北坡冰川在数量和规模上均大于南坡。青藏高原冰川形态类型齐全,悬冰川数量最多,占总数的39.3%;而大型的山谷冰川仅占高原总数的4.6%,但其面积和冰储量分别占高原总数的33.5%和48.6%。大型山谷冰川面积大于100km2的冰川有20条,喀喇昆仑山北坡的音苏盖提冰川长42km,冰川面积达379.97km2。青藏高原现代冰川折合成淡水约有39228×108m3,是青藏高原地表径流总量的10.8倍,是巨大的优质淡水资源。初步计算,每年可提供冰川融水504×108m3补给河流。青藏高原冰川水资源在各大水系的分布上不均匀,海洋性冰川区冰川融水径流模数远大于大陆性冰川区。  相似文献   

10.
实施"三大工程"加速西部大开发   总被引:4,自引:0,他引:4  
我国西部幅员辽阔,包含西北、西南10个省(市、区),面积约为538平方公里,占全国总面积的57%;人口2.7亿,约占全国总人口的23%;是囊括了大半个中国的大经济带,也是我国最主要的能源和矿产资源重地,在战略上是支撑我国21世纪社会经济可持续发展的重要基地.该地区是我国少数民族的主要聚居区,也是贫困人口最多的地区,又是人才匮乏、生态环境脆弱、水资源缺乏及经济欠发达的地区.但潜力巨大,亟待开发.  相似文献   

11.
This study examined how students who had no prior experience with videoconferencing would react to the use of videoconferencing as an instructional medium. Students enrolled in seven different courses completed a questionnaire at the beginning of the semester and again at the end of the semester. Students at the origination and remote sites did not differ in their reactions toward videoconferencing but there was a significant difference for gender. Women reacted less favorably to videoconferencing. Compared to the beginning of the semester, students reported significantly less positive attitudes toward taking a course through videoconferencing at the end of the semester. There were no significant differences in students' attitudes toward videoconferencing across courses at the beginning of the semester but there were significant differences across the courses at the end of the semester. The results suggest the need for better preparation for both students and instructors.  相似文献   

12.
Ajoint study by Prof. ZHANG Zhibin from the CAS Institute of Zoology and his co-workers from Norway, US and Swiss have indicated that historical outbreaks of migratory locusts in China were associated with cold spells, suggesting that China's projected climate warming could decrease the pest's numbers. The study was published in Proceedings of theNational Academy of Sciences on 17 September, 2007.  相似文献   

13.
A computer-mediated group is a complex entity whose members exchange many types of information via multiple means of communication in pursuit of goals specific to their environment. Over time, they coordinate technical features of media with locally enacted use to achieve a viable working arrangement. To explore this complex interaction, a case study is presented of the social networks of interactions and media use among members of a class of computer-supported distance learners. Results show how group structures associated with project teams dominated who communicated with whom, about what, and via which media over the term, and how media came to occupy their own communication niches: Webboard for diffuse class-wide communication; Internet Relay Chat more to named others but still for general communication across the class; and e-mail primarily for intrateam communication. Face-to-face interaction, occurring only during a short on-campus session, appears to have had a catalytic effect on social and emotional exchanges. Results suggest the need to structure exchanges to balance class-wide sharing of ideas with subgroup interactions that facilitate project completion, and to provide media that support these two modes of interaction.  相似文献   

14.
Electronic data interchange (EDI) provides means for interorganizational communication, creates network externalities, requires an advanced information technology (IT) infrastructure, and relies on standards. In the diffusion of such innovations, institutional involvement is imperative. Such institutions contain governmental agencies, national and global standardization organizations, local government, and nonprofit private organizations like industry associations. The last type of organizations we call intermediating institutions. They intermediate or coordinate ("inscribe") the activities of a group of would-be adopters. Unfortunately, little is known of how these organizations shape the EDI diffusion trajectory. In this article we examine one specific type of intermediating organizations?industry associations?and how they advanced the EDI diffusion process in the grocery sectors of Hong Kong, Denmark and Finland. We identify six institutional measures, placed into a matrix formed by the mode of involvement (influence vs. regulation) and the type of diffusion force (supply push vs. demand pull), that can be mobilized to further the EDI diffusion. Industry associations were found to be active users of all these measures to varying degrees. Their role was critical especially in knowledge building, knowledge deployment, and standard setting. Furthermore, institutional involvement varied due to policy and cultural contingencies and power dependencies.  相似文献   

15.
Aresearch group led by Prof. ZHAI Qiwei from the Institute for Nutritional Sciences under the CAS Shanghai Institutes for Biological Sciences has discovered that even relatively low doses of resveratrol--a chemical found in the skins of red grapes and in red wine--can improve the sensitivity of mice to the hormone insulin, according to a report in the October,2007 issue of Cell Metabolism. As insulin resistance is often characterized as the most critical factor contributing to the development of Type 2 diabetes, the findings“provide a potential new therapeutic approach for preventing or treating” both conditions, the researchers said.  相似文献   

16.
The increasing prospects of digital piracy has prompted the perceived need by electronic publishers to adopt technical systems of protection, and governments to reform their copyright laws. This article is a preliminary study of the management of intellectual property by electronic publishers, defined as those involved in the production of online databases, and CD-ROMs. It focuses on three main issues: (1) how electronic publishers view the increasing threat of piracy; (2) the methods of protection employed to protect intellectual property in digital format; and (3) the importance of technological protection of intellectual property in electronic publications. The analysis is based on a sample of 23 UK electronic publishers. The interviews revealed an interesting assortment of protection methods and did not show that technological protection was a preferred way. Instead, the means of protection, in addition to copyright law, comprised niche markets, pricing, trust, bad publicity, and nontechnical and technical means.  相似文献   

17.
Long-standing conflict between domain name registrants and trademark holders prompted the Internet Corporation for Assigned Names and Numbers (ICANN) to create a global, mandatory arbitration procedure known as the Uniform Dispute Resolution Policy (UDRP). The UDRP has been used in 2166 cases involving 3938 domain names as of 1 November 2000. The policy gives the initiator of a complaint, generally a trademark holder, the right to choose which ICANN-accredited dispute resolution service provider (RSP) will handle the case. During the preparation of the UDRP,some feared that complainant selection would lead to "forum shopping" that might bias the results. This article performs a statistical assessment of the forum-shopping thesis and finds support for it. There are statistically significant differences in the various RSPs' propensity to take away names from defendants; there are also major differences in the number of cases brought to each RSP. RSPs who take away names have the larger share of cases. The study examines other variables that might explain differences in market share, such as price, the plaintiff's nationality, or the time taken to decide a case. It finds that nationality and time also are correlated with market share. The study concludes that shopping for a favorable outcome is an important factor in the UDRP.  相似文献   

18.
Prof. Raymond C.K. Chen, a neuropsychologist with the CAS Institute of Psychology, has made novel progress in his studies of schizophrenia. His work has been reported by a recent issue of Behavioural Neurology.  相似文献   

19.
Active biological molecules and functional structures can be fabricated into a bio-mimetic system by using molecular assembly method. Such materials can be used for the drug delivery, disease diagnosis and therapy, and new nanodevice construction.  相似文献   

20.
<正>In Xishuangbanna,one of China’s most biodiverse regions,landscape has changed dramatically during the past three decades due to the conversion of tropical rainforest to rubber plantations.In steep areas,terraces are often constructed before planting rubber trees,which causes two important changes in the soil:the destabilization of soil in the bench terraces and the increased vulnerability of unvegetated riser faces to erosion.Few studies have documented the nature and intensity of erosion on bench terraces.Prof.LIU Wenjie and his colleagues from the Xishuangbanna Tropical Botanical Garden(XTBG)conducted a study in Menglun County(21°5′39″N,101°15′55″E),Xishuangbanna to evaluate the influence  相似文献   

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