共查询到20条相似文献，搜索用时 203 毫秒
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云南拖顶一带的泥盆纪地层,由于受构造的影响呈断块产出。通过对矿区泥盆纪地层的详细研究,认为其地层层序较为清楚,可以分出下泥盆统碎碎岩、中泥盆统碳酸盐岩和上泥盆统碎屑岩－碳酸盐岩。在斩野外实地考察和室内研究的基础上,本文详细厘定子泥盆纪的沉积相,并恢复了岩相古地理格局。进而建立了该区的层序地层格架,分为５个沉积层序,并对沉积体系与拖顶铜矿的关系进行了探讨。 相似文献
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辽西下白垩统义县组湖相碳酸盐岩及其沉积环境研究 总被引：3，自引：0，他引：3
辽西地区下白垩统义县组是热河生物群产出的主要地层,其中产出大量精美的生物化石,但是由于受到后期构造破坏和风化作用影响,难以开展野外工作,热河生物群产出的古地理环境及盆地沉积环境的研究程度仍然较低。该组地层中湖相碳酸盐岩比较发育,本次工作主要对辽西义县组老公沟—金刚山剖面4个沉积层中产出的多层湖相碳酸盐岩沉积层进行了深入研究。通过野外工作结合室内镜下鉴定,分析了义县组湖相碳酸盐岩的产出状态和岩石类型,划分出5个岩相类型和两个相组合。结合野外实测剖面中碳酸盐岩与其它沉积岩层的组合关系对义县组湖相碳酸盐沉积环境进行了探讨,发现义县组湖相碳酸盐岩主要为洪水—漫湖沉积体系中较浅的储水洼地和滨浅湖半咸水沉积环境,并建立了义县组湖相碳酸盐岩沉积相模式。 相似文献
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水资源是人类社会生存和发展不可代替的战略资源,从运城市面临的水资源紧缺形势和日趋严重的水环境问题出发,阐述了建设节水型社会的必要性,对运城市节水型社会建设现状和存在问题进行详细论述基础上,提出了加大宣传力度,开展初始水权分配,建立用水计量控制体系等建设节水型社会的六条主要措施。 相似文献
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Paul Courtney Lucy Mayfield Richard Tranter Philip Jones Andrew Errington 《Geoforum》2007,38(6):1219-1232
This paper uses spatial economic data from four small English towns to measure the strength of economic integration between town and hinterland and to estimate the magnitude of town–hinterland spill-over effects. Following estimation of local integration indicators and inter-locale flows, sub-regional social accounting matrices (SAMs) are developed to estimate the strength of local employment and output multipliers for various economic sectors. The potential value of a town as a ‘sub-pole’ in local economic development is shown to be dependent on structural differences in the local economy, such as the particular mix of firms within towns. Although the multipliers are generally small, indicating a low level of local linkages, some sectors, particularly financial services and banking, show consistently higher multipliers for both output and employment. 相似文献
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环境经济帐户的研究综述 总被引：1，自引：0，他引：1
在传统的国民经济帐户体系中加入环境的内容日益引起各国政府的重视。在总结国内外环境经济帐户研究的基础上,系统介绍了当前国际上最新发展的综合环境经济帐户体系（SEEA）的基本框架和结构。将环境成本内生于生产和收入帐户,同时调整生产帐户中资产和收入帐户中的存量和流量是当前的环境经济帐户体系有别于其它帐户体系的基本特征。详细介绍了建立环境经济帐户的十大步骤。指出了建立区域尺度环境经济帐户中的难点,并提出了相应的解决方法。最后系统地总结了环境经济帐户在政策分析中的应用前景。 相似文献
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气候与土地利用变化对水文水资源的影响研究 总被引：27，自引：0，他引：27
水资源短缺和水患灾害已成为全球关心的重大问题。气候与土地利用变化对流域水资源和旱涝的影响以及由此产生的社会经济后果已引起人类社会的广泛关注。深入综合地开展这方面的研究对国民经济建设和可持续发展规划决策有重要的意义。通过分析总结已进行的有关研究工作 ,对该领域的研究进展作了简要回顾 ,讨论了现有工作的不足和今后的研究内容和方法。 相似文献
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P.A. Wood 《Geoforum》1974,5(3):19-27
British regional problems increasingly emphasize the need to understand the exploitation and movement of all factors of production between different parts of the country. This paper reviews evidence, from work sponsored by the National Institute of Economic and Social Research, on the significance for the standard regions of capital investment, interregional capital flows and regional investment multipliers. A high level of economic interdependence allows the effects of investment to become widely spread throughout the British space economy. This limits the power of capital expenditure to lead growth in the region where it takes place. Studies of the spatial implications of capital investment should therefore form part of more general appraisals of factor supply and demand changes and their effects on the decisions of different investing agencies (including government). Two distinctive themes for the geographical study of capital investment are suggested: the examination of relationships between investment projects by different agencies at appropriate sub-regional scales; and the ways in which established patterns of physical capital stock may influence the expenditure of new, mobile funds. 相似文献
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《Geoforum》2017
The most prominent ‘victim’ of the global financial crisis in 2007/2008 has been Greece, which is, even now, in the middle of an economic and social storm that is threatening its economic and social cohesion and its membership of the Eurozone. Using the social well-being conceptual framework as a benchmark and exploiting the literature of composite indicators, the paper aims to assess and measure the regional impact of the crisis in a systematic and comprehensive way. Differing from most of previous studies, both at national and international levels, this study is based on the assumption that the effects of the crisis go far beyond economics and create a social crisis strongly associated with significant human and social costs that might transform Greece’s regional status and threaten its regional well-being, probably in a very unequal way. The main finding of the analysis is that although all regions were severely affected by the dynamics and intensity of the crisis, some regions were more affected than others, leading to ‘winners’ and ‘losers’. From a policy point of view, the results of this study have serious implications for crisis management, recovery policy actions and a country’s social cohesion, especially in Greece where austerity policy measures not only imposed considerable cutbacks in regional development policies but also ignored the spatial dimension of the crisis. 相似文献
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Socialist industrialization, with its multiple economic and social consequences, has helped Romania to become, within a short stage of development, an industrial-agrarian country, with a well-balanced and dynamic economy. The changing structure of its industry is characterized chiefly by the ever increasing importance of ferrous and non-ferrous metallurgy, machine building and chemicals. The well-balanced regional distribution of industry is based on geographical, economic and social criteria, such as distance from sources of raw material or consumption centres, intensive use of transport and the use of the available industrial basis, the raw materials, and labour. Unlike the previous periods, the geographical distribution of industry today is characterised by four great industrial areas —the south, the south-west, the centre and the east as well as other more restricted areas and an important number of industrial centres. 相似文献
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基于GIS技术的区域性多源地学空间信息集成若干问题探讨 总被引：44，自引：18，他引：26
地学信息分散的、非动态的管理现状, 已远远不能满足市场经济发展与广泛社会需求的多元性、科学性与迫切性, 也极大地制约了地学信息的社会经济效益的充分发挥.本文根据当前有关区域性多源地学空间信息集成项目研究的成果, 基于GIS理论与技术和多源地学地理信息空间数据应用的特点, 对区域性多源地学空间信息集成的有关技术方法进行了讨论.详细叙述了多源地学地理信息系统的编程与设计、数据采集技术、元数据、投影与坐标系统、物理设计与约定、集成数据质量特征. 相似文献
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区域生态地球化学评价思路及建议 总被引：25，自引：17，他引：25
区城生态地球化学评价是在多目标地球化学调查基础上开展的一项区域评价研究工作，其目的是为国家和所薪究地区的国民经济建设、工农业结构调整和社会可持续发展提供基础地球化学资料。区域生态地球化学评价以异常元素的来源-成因-迁移转化-生态效应-预测预警为研究主线，以生态系统为研究基本单元，查明异常元素分布、分配、成因及来源，研究它们在地球表层备大层圈中的迁移转化规律，评价它们所产生的生态效应，应用地球化学和生态学的基本原理和方法对污染的生态系统进行预测预警，井提出治理建议，为国家区域性经济战略调整和工农业可持续发展提供科学依据。 相似文献
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如何分析区域资源环境与社会经济之间的协调匹配程度,是促进区域经济可持续发展首先需要厘清的问题。基于资源环境承载协调理论,构建了基于双曲距离协调度的资源-经济系统的协调分析模型方法。根据该模型对全国依赖地下水资源且开发程度较高的514个县的地下水资源和经济数据进行了协调关系分析,评价了各县地下水资源禀赋与其承载的经济体之间的协调关系水平,结果显示2个系统之间的协调匹配程度及空间上具有较大差异性。东北和西北大部分地区处于地下水资源与经济协调的正向区间,区域经济发展仍具有一定潜力,华北及南方大部分地区处于负向协调区间,经济的发展超越了地下水资源的承载能力。 相似文献