首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   362篇
  免费   13篇
  国内免费   3篇
测绘学   16篇
大气科学   41篇
地球物理   1篇
地质学   63篇
海洋学   17篇
综合类   13篇
自然地理   227篇
  2024年   1篇
  2023年   6篇
  2022年   39篇
  2021年   32篇
  2020年   24篇
  2019年   24篇
  2018年   11篇
  2017年   23篇
  2016年   24篇
  2015年   16篇
  2014年   13篇
  2013年   37篇
  2012年   15篇
  2011年   6篇
  2010年   5篇
  2009年   13篇
  2008年   5篇
  2007年   7篇
  2006年   12篇
  2005年   12篇
  2004年   10篇
  2003年   2篇
  2002年   7篇
  2001年   10篇
  2000年   8篇
  1998年   2篇
  1997年   2篇
  1996年   2篇
  1995年   1篇
  1994年   1篇
  1993年   1篇
  1992年   1篇
  1991年   1篇
  1986年   2篇
  1985年   1篇
  1984年   1篇
  1982年   1篇
排序方式: 共有378条查询结果,搜索用时 796 毫秒
201.
社会生态补偿标准测算方法(英文)   总被引:2,自引:0,他引:2  
Ecological compensation is a hot subject in academic studies, and the determina-tion of the spatial allocation of compensation payments is a key point in the research of eco-logical compensation. There are two kinds of thoughts in the determination of regional spatial allocation at present: "evaluation of ecological construction cost" and "evaluation of ecosystem services value". This paper analyzes the relationships between social ecological compensation and regional socio-economic development, and establishes two econometric models with the data of 2007 from various provinces in China. Through these models, the impacts of geographical endowments on the regional socio-economic development in various provinces are analyzed from the social justice viewpoint and the concept of "equivalent value of geographical endowments" (EGE for short) is proposed. This paper analyzes the application prospect of EGE in the policy making of regional ecological compensation. The results showed that: (1) the implementation of social ecological compensation is not only an effective guarantee for each region to obtain the equal rights of survival, development and decent environment, but also an essential assurance to the coordinated, balanced and sustainable development among various regions; (2) the regional difference in geographical endowments is an important factor affecting the regional spatial variation of socio-economic development. Therefore, geographical endowments are important bases for the determination of the spatial allocation of compensation payments in social ecological compensation; (3) based on the EGE, the government can determine the spatial allocation of social ecological compensation scientifically, and avoid the "sweeping approach" phenomenon in the policy making process of ecological compensation.  相似文献   
202.
China’s new urbanization process requires coordinated development between cities and rural areas. Territorial functions of rural areas are defined as advantageous effects on nature and human society that, in particular, rural systems perform via their property and interactions with other systems at certain social development stages. This paper establishes an index system for evaluating rural territorial functions including agricultural function, social function, economic function and ecological function. By establishing a model based on a General Regression Neural Network (GRNN) with the county-level as the basic unit, we comprehensively evaluate the rural territorial functions of 109 counties and/or cities in Henan province, China in 2000, 2005 and 2010. Results show that compared with that in 2000, each function in 2010 improved, with the spatial heterogeneity of economic function the most evident, social service function comparatively balanced and spatial distribution of agricultural production function changing little. Cluster analysis was adopted to study the major functions of rural regions. Henan was divided into six major function zones to enhance administrative management and developmental policy. The six major function zones are Type I (core economic development zone), Type II (agricultural production safeguarding zone), Type III (function improving zone for rural areas), Type IV (model zone of livelihood and social services), Type V (economic restructuring and development zone), and Type VI (nature conservation areas). Different development goals and development strategies should be considered according to different major function areas to achieve the coordinated development of urban and rural areas in China.  相似文献   
203.
Mechanisms of democratic participation have been activated in Colombia since 2006 for the purpose of protecting water sources, hydrosocial territories and peasant livelihoods. A chronological perspective on the numerous and varied cases illustrates their cumulative, transformative effect on judicial decisions taken by the high courts, which have endorsed these mechanisms of direct democracy and expanded the scope of democratization to socioenvironmental issues. The process of environmental democratization in Colombia has been gradual, starting with the creation of opportunities for citizen participation in the Constitution of 1991; followed in the first decade of this century by the activation of the mechanisms of democratic participation created; and culminating with the watershed Constitutional Court ruling T-445 of 2016, which confirmed the right of municipalities to consult with their citizens about mining and oil extraction in their territories. The cases are analyzed here through the lens of democratization and transformative and judicialized politics. The paper argues that the reconfiguration of power through the use and contestation of participatory mechanisms reveals an ambiguous state-formation process characterized by repressed democratization. It also demonstrates that the process of environmental democratization that started with the activation of the democratic participation mechanisms introduced in the Constitution of 1991 has been one of transformative democratic politics, in which a dynamic array of political actors have consolidated democratic participation on environmental issues through constitutional lobbying and activism.  相似文献   
204.
区域性大地水准面的确定   总被引:8,自引:1,他引:7  
精确求定区域性大地水准面是大地测量学的一项重要科学目标 ,也是一项极具实用价值的工程项目。本文以某地区为例 ,描述区域性大地水准面确定的基本方法、一般过程和步骤  相似文献   
205.
Book Reviews     
Books reviewed: Pyne, Stephen J., How The Canyon Became Grand: A Short History Gibson, Clark C., Politicians and Poachers: The Political Economy of Wildlife Policy in Africa Voeks, Robert A., Sacred Leaves of Candomblé: African Magic, Medicine, and Religion in Brazil Grossman, Lawrence S., The Political Ecology of Bananas: Contract Farming, Peasants and Agrarian Change in the Eastern Caribbean Fennell, David A., Ecotourism: An Introduction Soffer, Arnon, Rivers of Fire: The Conflict Over Water in the Middle East Light, Andrew and Smith, Jonathan M., Philosophy and Geography II: The Production of Public Space Davies, Richard O., Main Street Blues: The Decline of Small‐Town America Driver, Felix and Gilbert, David, Imperial Cities: Landscape, Display and Identity Baldassare, Mark, California in the New Millennium: The Changing Social and Political Landscape Herzog, Lawrence A., From Aztec to High Tech: Architecture and Landscape Across the Mexico‐United States Border Cowie, Jefferson, Capital Moves: RCA's Seventy‐Year Quest for Cheap Labor Aiken, Charles, The Cotton Plantation South Since the Civil War Smith, Steven D., Crass, David, and Zierden, Martha A., The Southern Colonial Backcountry: Interdisciplinary Perspectives on Frontier Communities Hoelscher, Steven D., Heritage of Stage: The Invention of Ethnic Place in America's Little Switzerland Bradley, Betsy Hunter, The Works: The Industrial Architecture of the United States  相似文献   
206.
Global crises of childhood: rights, justice and the unchildlike child   总被引:1,自引:0,他引:1  
Stuart C. Aitken 《Area》2001,33(2):119-127
This paper traces how the notion of childhood changes as part of other social transformations. Globalization and the disillusion of public and private spheres are related to contemporary crises of childhood. Visible working children and child violence are highlighted as examples of unchildlike behaviour that suggests indeterminacy in the constitution of the global child. Issues of children's rights and new forms of justice are raised as potentially liberatory ways of viewing the crisis.  相似文献   
207.
Jeremia Njeru   《Geoforum》2006,37(6):1046-1058
Over 24 million plastic bags are consumed in Kenya monthly. More than half of the bags end up in the solid waste stream. Plastic bags now constitute the biggest challenge to solid waste management in Nairobi, the capital of Kenya and home to three million people. As a result, plastic bag waste has attracted great political and public attention, especially because the waste has myriad unique environmental problems. This paper seeks to unravel the problem of plastic bag waste in Nairobi through an urban political ecological perspective. Urban political ecology has done much to excavate economic, political, and cultural processes, as well as ecological dynamics that create and re-create urban environments. Little has been done in this context with respect to urban solid waste problems, with the exception of urban political ecology of environmental justice. However, research done within the context of urban political ecology of environmental justice has mainly focused on solid waste problems in the Western World, particularly USA. Drawing on research conducted in Nairobi, as well literature on business and politics, and solid waste management in Kenya, this paper examines the nature of plastic bag waste problem, its political–economic roots and implications for environmental justice.  相似文献   
208.
Postcolonial environmental justice: Government and governance in India   总被引:1,自引:0,他引:1  
In this paper, we investigate the context within which struggles for environmental justice are taking place in India. We explore the ways in which postcolonial patterns of government and governance in India affect the ends, the means and the representation of these struggles, focusing on three particular areas: state reform, the judiciary and public interest litigation, and environmental social movements. We argue that India differs from west in the ambitious yet incomplete and contradictory nature of government-sponsored intervention in the environment, and in the particular nature of its public sphere, both of which have been important in shaping struggles for environmental justice. Our wider intention is not merely to catalogue these differences, but to use the Indian material to raise questions about the emphases and implicit assumptions of western environmental justice literature, and reflect on how these may be need reconsideration when working in postcolonial contexts.  相似文献   
209.
Kersty Hobson 《Geoforum》2006,37(5):671-681
Environmental justice research has of late expanded beyond its’ original focus on the distribution of environmental ‘bads’ to debate injustices at a wide array of sites and scales. Despite this expansion, the applicability of an environmental justice framework to seemingly apolitical and banal expressions of environmental concerns remains open to question. This paper argues that environmental justice struggles can be located in the mundane environmental politics of Singapore, by employing a performative rather than rights-based approach to both justice and politics. It draws on qualitative research into volunteers’ practices in one Singaporean environmental organisation, and asserts that through their focus on experiential learning and re-inscribing ‘developmental’ spaces as spaces of care and justice, volunteers seek to redress the social, political and environmental injustices replete within the spatial politics of Singapore.  相似文献   
210.
Andy Gouldson 《Area》2006,38(4):402-412
Within the context of broader debates on corporate social responsibility (CSR) and environmental justice (EJ), this paper examines three key questions: first, how the standards that corporations adopt at the global scale trickle down into local site-level practices; second, whether levels of corporate environmental performance vary from place to place; and third whether any variations in corporate environmental performance relate to the principles of EJ. To do this, the analysis draws upon recently disclosed data to evaluate variations in the environmental performance of oil refineries across the US and the EU. It finds significant variations in emissions of some key pollutants. These exist both across the range of refineries, with dirtier refineries emitting at least five times as much as cleaner refineries, and between the EU and the US, with refineries in the EU emitting more than twice as much as refineries in the US. At the local level, it finds that there are correlations between higher levels of emissions from refineries and lower levels of income, employment and population density. Although these findings provide support for some of the contentions of the EJ movement, they do not say anything about causality, and as a result we cannot say definitively that companies adopt lower standards in poorer areas.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号