全文获取类型
收费全文 | 21587篇 |
免费 | 364篇 |
国内免费 | 390篇 |
专业分类
安全科学 | 803篇 |
废物处理 | 952篇 |
环保管理 | 3715篇 |
综合类 | 3315篇 |
基础理论 | 5412篇 |
环境理论 | 11篇 |
污染及防治 | 5519篇 |
评价与监测 | 1276篇 |
社会与环境 | 1166篇 |
灾害及防治 | 172篇 |
出版年
2023年 | 105篇 |
2022年 | 178篇 |
2021年 | 209篇 |
2020年 | 205篇 |
2019年 | 194篇 |
2018年 | 344篇 |
2017年 | 336篇 |
2016年 | 503篇 |
2015年 | 414篇 |
2014年 | 538篇 |
2013年 | 1883篇 |
2012年 | 751篇 |
2011年 | 1091篇 |
2010年 | 830篇 |
2009年 | 932篇 |
2008年 | 1037篇 |
2007年 | 1094篇 |
2006年 | 915篇 |
2005年 | 742篇 |
2004年 | 781篇 |
2003年 | 726篇 |
2002年 | 680篇 |
2001年 | 714篇 |
2000年 | 604篇 |
1999年 | 401篇 |
1998年 | 276篇 |
1997年 | 288篇 |
1996年 | 281篇 |
1995年 | 333篇 |
1994年 | 263篇 |
1993年 | 268篇 |
1992年 | 244篇 |
1991年 | 225篇 |
1990年 | 225篇 |
1989年 | 219篇 |
1988年 | 180篇 |
1987年 | 168篇 |
1986年 | 193篇 |
1985年 | 183篇 |
1984年 | 229篇 |
1983年 | 193篇 |
1982年 | 206篇 |
1981年 | 203篇 |
1980年 | 166篇 |
1979年 | 166篇 |
1978年 | 116篇 |
1977年 | 108篇 |
1975年 | 102篇 |
1974年 | 97篇 |
1972年 | 102篇 |
排序方式: 共有10000条查询结果,搜索用时 630 毫秒
701.
702.
John Rice 《Journal of Environmental Planning and Management》2016,59(1):44-61
Recent climate change projections and a push towards a universal agreement on carbon emission reductions suggest that firms will need to respond to future regulatory changes. This paper employs an influencing strategies lens to examine how large-scale firms might respond to future climate change regulations. The study uses a structured qualitative methodology to explore and explicate the strategic responses from 21 international firms to the proposed emissions trading scheme outlined in Australia's Garnaut Climate Change Review. The results of the analysis show that firms can use pre-emptive influencing strategies in attempts to shape and mould regulatory design parameters, secure high levels of transitional economic support, and shift the balance of public policies and expenditure. Complementary defensive strategies may also target policy makers and regulators with some of the potential negative consequences of the new regulations. 相似文献
703.
Recreational Diving Impacts on Coral Reefs and the Adoption of Environmentally Responsible Practices within the SCUBA Diving Industry 总被引:1,自引:0,他引:1
704.
705.
706.
707.
Julio L. Rivera Amrine Lallmahomed 《International Journal of Sustainable Engineering》2016,9(2):119-129
The aim of this paper was to explore the implications of planned obsolescence (PO) and the associated product lifetime on the environmental impact of products. To achieve this task, a literature review was performed to assess both the historical context and recent situation of planned obsolescence. A search in scholarly journals was performed to evaluate to what extent product lifetime and PO have been discussed in the recent literature. Based on the findings, selected cases of PO are discussed and trends in the practice of limiting product lifetime are identified. Factors considered to have a significant influence on product lifetime have been identified and discussed. The discussion of case studies made it possible to establish the links between product design, manufacturing and associated impacts of lifetime. The role of the actors along the value chain is also considered to propose a business scheme, where the influences of consumer behaviour and design choices are crucial. Finally, strategies to facilitate the definition of different scenarios are given. These strategies may serve to increase the reliability of environmental assessment throughout a product life cycle. 相似文献
708.
Modolo R. C. E. Senff L. Ferreira V. M. Tarelho L. A. C. Moraes C. A. M. 《Journal of Material Cycles and Waste Management》2018,20(2):1006-1015
Journal of Material Cycles and Waste Management - Several types of industrial solid waste have been used as byproducts in the construction and materials industries. Some of the applications seem to... 相似文献
709.
How do choices among information sources reinforce political differences on topics such as climate change? Environmental sociologists have observed large-scale and long-term impacts from news media and think-tank reports, while experimental science-communication studies detect more immediate effects from variations in supplied information. Applying generalized structural equation modeling to recent survey data, previous work is extended to show that political ideology, education and their interaction predict news media information choices in much the same way they predict opinions about climate change itself. Consequently, media information sources serve as intervening variables that can reinforce and, through their own independent effects, amplify existing beliefs about climate change. Results provide empirical support for selective exposure and biased assimilation as mechanisms widening political divisions on climate change in the United States. The findings fit with the reinforcing spirals framework suggesting partisan media strengthens climate change beliefs which then influences subsequent use of media. 相似文献
710.
Under what conditions do critical events trigger large-scale public discussion and mobilisation, and can these lead to policy change? In a comparative study of nuclear energy policy after the Japanese Fukushima disaster in March 2011, a theory-development approach is adopted, mobilising data collected from national news agencies’ newswires, public surveys, legislation and parliamentary databases, and newspaper editorials in 12 established democracies between March 2011 and March 2013. The analysis suggests two main hypotheses that can guide future research: critical events are more likely to trigger policy change when intense (contentious) mobilisation from policy challengers aligns with the views of the general public, and is backed by major political allies; and critical events are more likely to trigger intense (contentious) mobilisation when policy challengers articulate their opposition around pre-existing policy debates on the issue and resort to pre-existing organisational and mobilisation resources. 相似文献