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251.
As domestic affluence increases, nations advocate for conservation policies to protect domestic biodiversity that often curtail natural resource production activities such as fishing. If concomitant consumption patterns remain unchanged, environmentally conscious nations with high consumption rates such as the U.S. may only be distancing themselves from the negative environmental impacts associated with consuming resources and commodities produced elsewhere. This unintended displacement of ecosystem impacts, or leakage, associated with conservation policies has not been studied extensively in marine fisheries. This paper examines this topic, drawing on case studies to illustrate the ways in which unilateral marine conservation actions can shift ecosystem impacts elsewhere, as has been documented in land use interventions. The authors argue that the U.S. should recognize these distant ecological consequences and move toward greater self-sufficiency to protect its seafood security and minimize leakage as well as undertake efforts to reduce ecosystem impacts of foreign fisheries on which it relies. Six solutions are suggested for broadening the marine conservation and seafood consumption discussion to address leakage induced by U.S. policy.  相似文献   
252.
In 2007 CITES included the Critically Endangered European eel on its Appendix II, thereby regulation international trade. In 2010 the EU member states adopted a ‘zero-quota’ policy thereby banning all commercial international trade. Given the continued high demand for eel in East Asia shifts have occurred to source European eel from non-EU eel range countries. Using official export figures from two independent databases, I here quantify to what extend Morocco, Tunisia and Algeria are fulfilling this demand. The ban had little effect on the annual export volumes in live eel from Morocco (mean of 41.3 metric ton / year), Algeria (15.5 t) or Tunisia (56.2 t) or chilled/frozen eel from Algeria (11.7 t) and Tunisia (20.0 t) but this trade from Morocco increased significantly (from 27.4 to 237.2 t). Prior to the ban the trade in eel from North Africa was almost exclusively to European countries (live 93–98%) and very little to East Asia, whereas after the ban East Asia became the main importer (live 91–93%). The monetary value of the trade totalled US$126 million and did not increase over time, but the importance of the live eel trade increase from 76% prior to the ban to 93% after. It is unclear on what basis Morocco and Tunisia were able to decide what level of trade was not detrimental to the survival of European eel in the wild, and I argue for better monitoring to ensure that international trade is not an impediment to the conservation of European eel.  相似文献   
253.
The commercial fishery for Jasus lalandii, the South Africa West Coast rock lobster, began in the late 1800s and at its peak in the early 1950s yielded an annual catch of 18 000 t. Although this annual catch has dropped to only some 2000 t over recent years, the fishery remains South Africa's third most valuable for landed value. The primary reason for the low total allowable catch (TAC) over these recent years has been a marked drop in somatic growth rate that occurred at the end of the 1980s, for reasons that remain unexplained. A key problem in formulating TAC recommendations with longer‐term objectives in mind, has been uncertainties about likely future trends, particularly in somatic growth and recruitment. To address this problem, an “operational management procedure” (OMP) was adopted in 1997 and has twice been re‐evaluated and modified (in 2000 and 2003) in the light of further data and changing perceptions of resource dynamics. The history of this process is reviewed, concentrating on the most recent modification. In particular, a summary is given of the process by which the merits of alternative management procedures were evaluated over a range of important uncertainties about the dynamics of the resource. This summary includes a discussion of the key trade‐offs between resource rebuilding, future TAC trends and TAC variability, and the eventual choice that was made. The paper concludes by listing a number of lessons learnt concerning best practice for OMP development as this process evolved.  相似文献   
254.
Ethical consumption is routinely promoted as a form of individualised responsibility taking whereby citizen-consumers consciously engage in morally/politically directed purchasing decisions. This has been heavily critiqued as a neoliberal reduction of civic engagement to market choice. It has also been contested by way of a shift to problematizing the consumer as moral agent; where attention is drawn instead to networks of agential entities - advocacy organisations, certifying bodies, marketing discourses, retail spaces, packages, household routines, and so on - that configure consumption alternatives as practice and performance. In reflecting on these concerns, this paper qualitatively explores the enterprising (rather than consumer enactment) of the ethical. Drawing on a multifaceted, three-year study of alternative consumption in Australia, the paper attends to the framing of ethical enterprise through business language, to the often ambivalent deployment of various commercial models and marketing strategies in the doing of ethical business, and to how a contestatory commerce is being imagined, especially in terms of its relations to a politics of social and economic change and to a commercial mainstream. Informed by work on markets as pragmatically assembled and on the economy as multiple, emphasis is placed throughout this article on ethical enterprise as a space of political ambiguity and as a gesture towards an alternative commerce that displaces an understanding of ethical consumption as resting on the actions of the virtuous consumer.  相似文献   
255.
本文基于全空间信息系统视角,运用复杂网络分析方法,从属性关联关系、时间关联关系、空间关联关系和综合关联关系角度对全球管道天然气贸易复杂网络中主要国家间关联关系进行了挖掘分析和可视化表达。结果表明:管道天然气贸易对战略通道具有路径依赖性和滞后性。贸易格局演化路径稳定,具有明显的“区域小世界”特征。区域资源禀赋差异是管道天然气贸易形成“核心-边缘”网络结构的主要原因。管道天然气贸易主要集中在欧亚大陆。2009年全球管道天然气贸易需求中心集中在欧洲各国,2015年则形成了西欧和中国的双需求核心网络关系。同时,论文基于全球管道天然气贸易复杂网络的挖掘分析和可视化表达,阐述了全空间信息系统的特征,展望了平台的应用。  相似文献   
256.
BOOK REVIEWS     
Book Reviewed in this article: The Rice Economy of Asia . Randolph Barker and Robert W. Herdt with Beth Rose. Using Microcomputers: A Guidebook for Writers, Teachers, and Researchers in the Social Sciences . Blaine A. Erie—the Lake that Survived . Noel M. Burns. Geology and Society . Donald R. Coates. Caves and Karst of Kentucky . Percy H. Dougherty, ed. Altered Harvest: Agriculture, Genetics, and the Fate of the World's Food Supply . Jack Doyle. The Middle East and North Africa, A Political Geography . Alasdair Drysdale and Gerald H. Blake. Clamor at the Gates. The New American Immigration . Nathan Glazer, ed. Development and the Landowner: An analysis of the British experience . Robin Goodchild and Richard Munton. Discovering Landscape in England and Wales . Andrew Goudie and Rita Gardner. The Modern Plantation in the Third World . Edgar Graham and Ingrid Floering. Social Relations and Spatial Structures . Derek Gregory and John Urry, eds. The World Food Problem 1950–1980 . David Grigg. Costa Rica: A Geographical Interpretation in Historical Perspective . Carolyn Hall. The Urbanization of Capital: Studies in the History and Theory of Capitalist Urbanization . David Harvey Consciousness and the Urban Experience: Studies in the History and Theory of Capitalist Urbanization . David Harvey. Reviving Main Street . Deryck Holdsworth, ed. Rural Roads and Poverty Alleviation . John Howe and Peter Richards, eds. Uneven Development in Southern Europe: Studies of Accumulation, Class, Migration and the State . Ray Hudson and Jim Lewis, eds. Karst Geomorphology . J. N. Jennings. The Geomorphology of North-west England . R. H. Johnson, ed. Climate Impact Assessment: Studies of the Interaction of Climate and Society . Robert Kates, Jesse Ausubel, Mimi Berberian, eds. Public Service Provision and Urban Development . Andrew Kirby, Paul Knox, and Steven Pinch, ed. State and Market: The Politics of the Public and the Private . Jan-Erik Lane, ed. Living Cities . Twentieth Century Fund Task Force on Urban Preservation Policies. World Climatic Systems . John G. Lockwood. Urban Ethnicity in the United States. New Immigrants and Old Minorities . Lionel Maldonaldo and Joan Moore, eds. Culture and Conservation: The Human Dimension in Environmental Planning . Jeffrey A. McNeely and David Pitt, eds. The Andean Past. Land, Societies, and Conflicts . Magnus Mörner. Gaia: An Atlas of Planet Management . Norman Myers, ed. Progress in Industrial Geography . Michael Pacione, ed. Progress in Political Geography . Michael Pacione, ed. Rivers and Landscape . Geoff Petts and Ian Foster. Urbanization and Planning in the 3rd World: Spatial Perceptions and Public Participation . Robert B. Potter. One Island, Two Nations? A Political Geographical Analysis of the National Conflict in Ireland . D. G. Pringle. Circulation in Third World Countries . R. Mansell Prothero and Murray Chapman. The Ozarks Outdoors: A Guide for Fishermen, Hunters, and Tourists . Milton D. Rafferty. Suburban Burglary: A Time and a Place for Everything . George Rengert and John Wasilchick. Geomorphology and Soils . K.S. Richards, R.R. Arnett, and S. Ellis, eds. The Homes and Homeless of Post-War Britain . Frederick Shaw. Indochinese Refugees in America . Paul J. Strand and Woodrow Jones, Jr. Wild Horses and Sacred Cows . Richard Symanski. Forever Wild: Environmental Aesthetics and the Adirondack Forest Preserve . Philip G. Terrie. The Regional Economic Impact of Technological Change . A.T. Thwaites and R.P. Oakey, eds. The Good Life . Yi-Fu Tuan.  相似文献   
257.
近年来,随着对外贸易的逐步发展,上海对其主要市场日本、美国、欧盟、香港和东盟的出口量不断增加,五大市场占上海出口的份额由1995年的76.52%增加为1999年的79.75%,其中,对美国和欧盟出口增速高于上海出口整体水平,其分额逐步增加;对日本、香港和东盟出口虽然绝对量在增加,但份额却呈减少趋势,在全面分析上海对五大市场出口变化及其成因基础上,本文提出今后上海外贸出口重点开发的目标市场。  相似文献   
258.
谭双喜 《湖南地质》2001,20(3):233-236
发展多种经营企业,是社会主义市场经济的需要,是地勘单位体制改革的必然趋势,产权单一,事企不分,人才匮乏、技术滞后,观念陈旧,市场不畅,是影响部分地勘单位多种经营企业发展的主要因素,只有在体制、科技和市场开拓等方面进行改革创新,才是地勘单位多种经营企业自我生存,自我发展的正确道路。  相似文献   
259.
世界经济进入全球化时代的两个突出特征就是贸易自由化和生产国际化,贸易自由化在许多方面与可持续发展的目标相背离,国际贸易依赖于化石能源的支持,并倾向于将成本外部化来获得比较优势,贸易自由化促进了经济流量的增加,有加速自然资本消耗的倾向;通过自由贸易可以暂时缓解区域发展的资源压力。但会因此而导致局部问题的扩大化。生产国际化过程促进了国际贸易并加速国际资本流动,加深了地球资源环境压力;跨国公司在全球化生产过程中追逐成本外部化,并通过在海外生产基地传播了大量生产-大量消费-大量废弃的线性模式,对全球生态系统恶化负有责任;跨国公司以追求利润最大化为目标,对东道国区域经济的带动能力是有限的,在分析全球化背景下的区域可持续障碍因素基础上。本文最后指出了全球化背景下的我国可持续发展的战略思考方向。  相似文献   
260.
世界资源贸易格局与中国利用国外资源的环境分析   总被引:7,自引:0,他引:7  
从总体上看,发达国家在世界资源贸易格局中占据主导地位。在农产品出口贸易方面,发达国家以粮食为主,发展中国家以经济作物出口为主;在矿产品贸易方面,石油是最重要的贸易产品;发达国家在非矿物原料上对发展中国家的依赖在减少。从中国利用国外资源的环境来看,经济环境相对较好,政治军事环境比较复杂。  相似文献   
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