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   177篇
  免费   4篇
  国内免费   6篇
安全科学   30篇
废物处理   1篇
环保管理   31篇
综合类   76篇
基础理论   6篇
污染及防治   15篇
评价与监测   17篇
社会与环境   7篇
灾害及防治   4篇
  2023年   2篇
  2022年   2篇
  2021年   3篇
  2020年   13篇
  2019年   1篇
  2018年   2篇
  2017年   2篇
  2016年   5篇
  2015年   1篇
  2014年   8篇
  2013年   7篇
  2012年   10篇
  2011年   9篇
  2010年   9篇
  2009年   10篇
  2008年   8篇
  2007年   8篇
  2006年   15篇
  2005年   7篇
  2004年   5篇
  2003年   4篇
  2002年   8篇
  2001年   7篇
  2000年   3篇
  1999年   3篇
  1998年   4篇
  1997年   2篇
  1996年   3篇
  1995年   3篇
  1994年   3篇
  1993年   1篇
  1992年   2篇
  1991年   4篇
  1990年   1篇
  1988年   1篇
  1987年   2篇
  1986年   1篇
  1985年   3篇
  1984年   3篇
  1981年   1篇
  1979年   1篇
排序方式: 共有187条查询结果,搜索用时 62 毫秒
101.
道路交通噪声自动监测中最少监测时间研究   总被引:2,自引:1,他引:1  
以城市主干线为例,对长期道路交通噪声自动监测数据进行统计分析,得出道路交通噪声实施噪声自动监测时应采用的小时最少监测时间、日昼夜最少监测小时、季最少监测天数和年最少监测天数。  相似文献   
102.
突发性环境污染事故应急监测研究进展   总被引:6,自引:4,他引:2  
主要综述了应急监测标准体系、应急监测技术方法、应急监测质控技术、应急决策系统4个方面的研究进展及其存在的问题,并提出了突发性环境污染事故应急监测的重点研究内容。  相似文献   
103.
城市污水处理技术与工艺研究进展综述   总被引:2,自引:0,他引:2  
随着城市的发展和人民生活水平的提高,城市污水排放量日益增大,且污水成分日趋复杂,迫切需要适应各地经济发展和环境保护目标的污水处理技术。本文重点介绍了城市污水生物处理技术之一活性污泥法中的4种污水处理工艺,同时介绍了曝气生物滤池污水处理方法,并对组合技术处理城市污水进行了展望。  相似文献   
104.
To increase the awareness of society to the challenges of global food security, we developed five contrasting global and European scenarios for 2050 and used these to identify important issues for future agricultural research. Using a scenario development method known as morphological analysis, scenarios were constructed that took economic, political, technical, and environmental factors into account. With the scenarios as a starting point future challenges were discussed and research issues and questions were identified in an interactive process with stakeholders and researchers. Based on the outcome of this process, six socioeconomic and biophysical overarching challenges for future agricultural were formulated and related research issues identified. The outcome was compared with research priorities generated in five other research programs. In comparison, our research questions focus more on societal values and the role of consumers in influencing agricultural production, as well as on policy formulation and resolving conflicting goals, areas that are presently under-represented in agricultural research. The partly new and more interdisciplinary research priorities identified in Future Agriculture compared to other programs analyzed are likely a result of the methodological approach used, combining scenarios and interaction between stakeholders and researchers.  相似文献   
105.
Due to the urgency and seriousness of the loss of biological diversity, scientists from across a range of disciplines are urged to increase the salience and use of their research by policy-makers. Increased policy nuance is needed to address the science–policy gap and overcome divergent views of separate research and policy worlds, a view still relatively common among conservation scientists. Research impact considerations should recognize that policy uptake is dependent on contextual variables operating in the policy sphere. We provide a novel adaptation of existing policy approaches to evidence impact that accounts for non-evidentiary “societal” influences on decision-making. We highlight recent analytical tools from political science that account for the use of evidence by policy-makers. Using the United Kingdom’s recent embrace of the ecosystem approach to environmental management, we advocate analyzing evidence research impact through a narrative lens that accounts for the credibility, legitimacy, and relevance of science for policy.  相似文献   
106.
This study examines the perspectives of Sami community members and university researchers regarding the ethical considerations for engagement in Community-Based Participatory Research (CBPR) with Sami communities in northern Finland. Key informant interviews were conducted with Sami people from Finland who were exposed to or participated in research in their communities as well as with researchers who have conducted research with the Sami in Finland across diverse topics. Five themes were identified: establishing trust, research preparation, research comprehension, research ethics, and inclusion in research. The differences in participant perspectives were compared based on their community versus researcher roles. Our findings emphasize the need for (1) strategies to develop and maintain trust between Sami communities and researchers; (2) methods to bridge concepts of bias projected onto Sami communities and researchers by the others’ differing world views and beliefs about research; and (3) increased education in community-engaged methods for social and natural scientists working with Sami communities. This study supports the need for the development of formalized ethical protocols for conducting community-based engaged research with and for Sami people in Finland that ensure mutually beneficial research for all involved.  相似文献   
107.
本文在富拉尔基区可持续发展能力分析的基础上,提出了投入机制。  相似文献   
108.
The co-benefits concept implies a ‘win–win’ strategy to address two or more goals with a single policy measure. There is much scholarly and policy attention paid to this concept as a way to avoid making trade-offs between developmental and environmental issues. However, there is no review paper that reviews the nature, evolution, strengths and limits of the co-benefits concept in relation to climate change. Hence, this review article addresses the question: What does the literature tell us about the definition, application and use of the co-benefits concept? Using a literature review approach, this article explains the evolution of the co-benefits concept and its strengths and weaknesses. We conclude that while the concept has tremendous advocacy potential in dealing with the problem that the costs and benefits of climate policy are temporally and spatially not aligned, its de facto potential is limited as mostly economists have engaged with this concept, and there is little trans-disciplinary work undertaken that also looks at the politics and institutional aspects of co-benefits. The article thus provides an impetus to rethink current approaches to studying co-benefits and points to the need for inter- and trans-disciplinary research drawing on economic, political and social sciences.  相似文献   
109.
The imperatives for reducing the world's dependence on fossil and nuclear fuels have multiplied manifold in recent years with the advent of worldwide terrorism. These new dangers come in addition to the imperatives of addressing the dire consequences of global warming and devastating pollution that accompany the use of these fossil fuels. Reducing dependence on these unsafe and unreliable energy resources should be a top global priority. Implementation of proven energy efficiency technologies offers the world the fastest, safest, most economic and most environmentally benign way to alleviate these threats. This article outlines available efficiency measures, their economic advantages and means by which they may be and have been implemented. While examples of efficiency applications from both developed and developing countries are given, the article relies heavily on experience with energy efficiency in the United States, where data on efficiency is particularly abundant.  相似文献   
110.
20年来,上海市已培育、发展、形成了一支稳定的环境科学研究队伍。回顾了这支队伍承担的上海市环保局下达的470余项科研项目中,一些主要的课题取得了卓越成果。在回顾的同时,对加强环境保护科研工作提出了五点意见。  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