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   7239篇
  免费   253篇
  国内免费   374篇
安全科学   322篇
废物处理   96篇
环保管理   1973篇
综合类   2547篇
基础理论   864篇
环境理论   2篇
污染及防治   172篇
评价与监测   184篇
社会与环境   1522篇
灾害及防治   184篇
  2024年   15篇
  2023年   51篇
  2022年   142篇
  2021年   173篇
  2020年   150篇
  2019年   132篇
  2018年   95篇
  2017年   194篇
  2016年   184篇
  2015年   148篇
  2014年   205篇
  2013年   455篇
  2012年   397篇
  2011年   497篇
  2010年   322篇
  2009年   319篇
  2008年   302篇
  2007年   470篇
  2006年   455篇
  2005年   377篇
  2004年   366篇
  2003年   351篇
  2002年   335篇
  2001年   283篇
  2000年   292篇
  1999年   242篇
  1998年   176篇
  1997年   149篇
  1996年   108篇
  1995年   96篇
  1994年   80篇
  1993年   74篇
  1992年   46篇
  1991年   21篇
  1990年   26篇
  1989年   8篇
  1988年   9篇
  1987年   12篇
  1986年   15篇
  1985年   4篇
  1984年   5篇
  1982年   15篇
  1981年   7篇
  1980年   10篇
  1979年   12篇
  1978年   9篇
  1977年   5篇
  1975年   4篇
  1973年   4篇
  1971年   9篇
排序方式: 共有7866条查询结果,搜索用时 515 毫秒
861.
旅游业推行清洁生产与可持续旅游发展   总被引:7,自引:0,他引:7  
本文尝试将清洁生产的理论与方法导入旅游业 ,探讨了旅游业清洁生产的概念、必要性、内容和模式 ,进而就旅游业清洁生产与可持续旅游发展的关系及清洁生产的实施途径进行了探讨  相似文献   
862.
农村水环境保护与经济可持续发展   总被引:1,自引:0,他引:1  
我国的生态环境问题 ,如水土流失、草场退化、沙漠化、盐渍化等问题 ,归根到底还是农村水环境问题。本文分析了农村水环境保护、高效利用水资源的紧迫性 ,以及影响农村生态系统可持续性的因素和保护、改善农村水环境的主要措施 ;认为加强农村水环境保护及其持续发展能力的建设是我国整个社会特别是农村经济可持续发展的基本保障  相似文献   
863.
本文从资源、环境和人地关系的角度探讨我国的可持续发展问题 ,分析了影响我国可持续发展因素 ,指出中华民族的人口素质是我国可持续发展的关键 ,阐明科教兴国是我国可持续发展的必由之路  相似文献   
864.
In recent years, churches across the world have become involved in dialogue on the theory and practice of sustainable development. A number of Western churches have expressed their concern about climate change and destructive living patterns, stressing the need for human beings to exercise the care for all creation based on a life of sharing and sacrifice. Some Orthodox churches, however, quite recently included the environmental issues in their agendas. While the Bases of Social Concept, a major doctrine of the Russian Orthodox Church adopted in 2000, for the first time emphasises the Churchs position in overcoming environmental crisis and presents a solid basis on which to build the future environmental strategy of the Church, the Ethiopian Orthodox Church has not yet drawn up a programme document that might serve as a framework for the Churchs current extensive activities in the field of biodiversity conservation and sustainable forestry practices. Hence, despite certain closeness of both institutions, there is the potential for strengthening their roles in promoting sustainable development, based on the Biblical concept that the Earth belongs to the Lord and humans are responsible stewards assigned the duty to work for creation and care for it. This paper seeks to demonstrate by means of comparable analysis between the two Churches, Orthodox in nature but different in rites and religious practices, that traditional, highly conservative faiths may serve as powerful instruments of spreading out the ideas of sustainable development as the basis of spiritual revival in the situation of the two concurrent and interrelated crises – spiritual and ecological.Readers should send their comments on this paper to: BhaskarNath@aol.com within 3 months of publication of this issue.  相似文献   
865.
Walker P 《Disasters》2005,29(4):323-336
This paper reflects on the genesis of the Code of Conduct for the International Red Cross and Red Crescent Movement and Non-Governmental Organizations (NGOs) in Disaster Relief, on the tenth anniversary of its adoption. The origins, usage and future of the code are examined with respect to three debates, current at the time of its inception, namely: the debate about the core content of humanitarianism; the debate about coherence and the consensual nature of the humanitarian community; and the debate about the need for, and the ability to demonstrate, accountability. The paper concludes that although the Code of Conduct was very much a product of its time, its content remains relevant today. However, its future application hinges on the capacity of those who purport to follow it to realise true accountability, and on proving that the code, written essentially for natural disasters, is relevant to contemporary complex emergencies.  相似文献   
866.
The concept of participation in rural development has been evolutionary for the past two decades with those involved, such as development agencies and governments, particularly in rural water supply, re-evaluating their active role. The move towards effective community participation has encouraged a shift from the traditional top-down to a bottom-up approach whereby there is a decentralisation of unevenly distributed resources and power to empower a community and allow mobility of ‘people participation’. The Molinos water project is the first large-scale development project of its kind introduced into the village of Molinos in an under-developed area of Chile, where there has been no tradition of people participation. The project objective was to implement a low technology, low budget water treatment plant to the village of Molinos. Various aspects have hindered the continued development of the project including both technical and financial. In terms of people participation, the initial approach used was the top-down approach. There was a failure to fully integrate the community or inform the community in a formal manner about the project and consult them regarding key project issues. This case study illustrates that the lack of comprehensive consultation and the low level of participation of the community on the participatory scale does not achieve much in terms of people-centred benefits. For governance at the local level to be effective, participation should be inclusive and communicative so as to enhance transparency throughout the project lifetime. Readers should send their comments on this paper to: BhaskarNath@aol.com within 3 months of publication of this issue.  相似文献   
867.
This paper deals with the various factors that condition underdevelopment in the world. It suggests some alternatives and points out the potential opportunities that both the developed and the underdeveloped world will have in the coming years to change the gloomy prospects that we see today. The present paper outlines the trends in historical priorities in development, changing as they pass from economic development to social development to ecological conservation – the three pillars of Sustainable Development.The paper analyses the importance of geography, a very relevant and often neglected conditioning factor. Also, it analyses the role of socio-economic conditioning factors like political immaturity, demographics, land ownership and external debt.Furthermore, the current opportunities for economic take-off are presented, from cash surpluses to low interest rates, from natural resource management to tourism or migration, from the Information Revolution to liberalisation of agricultural markets. Current obstacles are also analysed. The paper, on the basis of current facts and figures, reaches the conclusion that there is a structural need for sustained development aid for most poor countries, but it must be distributed in a more rational way.Readers should send their comments on this paper to: BhaskarNath@aol.com within 3 months of publication of this issue.  相似文献   
868.
The principle of sustainable development is now 15-year-old. There are a lot of definitions and models for its explanation — ranging from triangles and prisms to eggs — but still its sense is diffuse. Moreover, important aspects like equity are not sufficiently taken into account.The following article takes a critical look on sustainable development. It shows logical, systemic, philosophic and ethic reasons for the re-development of substantial parts of the principle of sustainability. Based on the proposed Principle of Good Heritage it provides a rough outline of a future Concept of Evolutionability, comprising a first tentative for a definition of evolutionable development, aiming at achieving a more appropriate and more workable mainstream view of sustainability.Readers should send their comments on this paper to: BhaskarNath@aol.com within 3 months of publication of this issue.  相似文献   
869.
我国人口问题与社会持续发展   总被引:3,自引:0,他引:3  
本文分析了我国人口的主要特点和人口问题,指出人口问题已成为我国社会、经济发展的重要制约因素,进而论述了人口与资源、环境、经济协调发展的基本原理和宏观对策  相似文献   
870.
试论改善发展的质量   总被引:2,自引:0,他引:2  
本文结合中国国情,从经济发展的目标、边界、途径等方面论述了改善发展质量的基本内涵,提出经济发展应以满足社会基本需要为目标,经济发展必须与环境和资源的承载力相适应,依靠科技进步是提高发展质量的根本途径,同时须不断改善经济的内部结构,走资源节。  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