全文获取类型
收费全文 | 149篇 |
免费 | 0篇 |
国内免费 | 2篇 |
专业分类
安全科学 | 3篇 |
废物处理 | 11篇 |
环保管理 | 14篇 |
综合类 | 34篇 |
基础理论 | 28篇 |
环境理论 | 1篇 |
污染及防治 | 44篇 |
评价与监测 | 9篇 |
社会与环境 | 7篇 |
出版年
2022年 | 2篇 |
2021年 | 2篇 |
2018年 | 4篇 |
2017年 | 2篇 |
2016年 | 4篇 |
2014年 | 5篇 |
2013年 | 11篇 |
2012年 | 9篇 |
2011年 | 6篇 |
2010年 | 8篇 |
2009年 | 5篇 |
2008年 | 6篇 |
2007年 | 6篇 |
2006年 | 6篇 |
2005年 | 4篇 |
2004年 | 2篇 |
2003年 | 5篇 |
2002年 | 8篇 |
2001年 | 3篇 |
2000年 | 4篇 |
1999年 | 5篇 |
1997年 | 2篇 |
1995年 | 2篇 |
1994年 | 2篇 |
1993年 | 1篇 |
1992年 | 2篇 |
1990年 | 1篇 |
1987年 | 1篇 |
1984年 | 1篇 |
1983年 | 1篇 |
1971年 | 1篇 |
1964年 | 1篇 |
1959年 | 4篇 |
1957年 | 2篇 |
1956年 | 2篇 |
1955年 | 1篇 |
1952年 | 1篇 |
1950年 | 2篇 |
1948年 | 1篇 |
1946年 | 1篇 |
1940年 | 1篇 |
1938年 | 1篇 |
1937年 | 1篇 |
1936年 | 1篇 |
1931年 | 1篇 |
1930年 | 1篇 |
1929年 | 1篇 |
1928年 | 1篇 |
1926年 | 1篇 |
1924年 | 1篇 |
排序方式: 共有151条查询结果,搜索用时 31 毫秒
91.
Liang Li McKenzie Hale Petra Olsen Nicole D. Berge 《Waste management (New York, N.Y.)》2014,34(11):2185-2195
Hydrothermal carbonization (HTC) is a thermal conversion process that can be an environmentally beneficial approach for the conversion of municipal solid wastes to value-added products. The influence of using activated sludge and landfill leachate as initial moisture sources during the carbonization of paper, food waste and yard waste over time at 250 °C was evaluated. Results from batch experiments indicate that the use of activated sludge and landfill leachate are acceptable alternative supplemental liquid sources, ultimately imparting minimal impact on carbonization product characteristics and yields. Regression results indicate that the initial carbon content of the feedstock is more influential than any of the characteristics of the initial liquid source and is statistically significant when describing the relationship associated with all evaluated carbonization products. Initial liquid-phase characteristics are only statistically significant when describing the solids energy content and the mass of carbon in the gas-phase. The use of these alternative liquid sources has the potential to greatly increase the sustainability of the carbonization process. A life cycle assessment is required to quantify the benefits associated with using these alternative liquid sources. 相似文献
92.
Erik Olsen Alf Ring Kleiven Hein Rune Skjoldal Cecilie H. von Quillfeldt 《Journal of Coastal Conservation》2011,15(2):257-269
Place-based management is any management action having implications for a specified area. Place-based management is seen as
a key component to practical implementation of ecosystem approach to management, with marine spatial planning (MSP) being
the currently most promoted approach. In the present paper we address the challenges of place-based management at local, regional
and global (oceanic) spatial scales using case studies from the Northeast Atlantic with examples from Norway. Both ecological,
governance and management complexity increases with increasing geographic scale, with associated increases in uncertainty
and thus increasing need for managing under the precautionary approach. A process where (ecologically) valuable and vulnerable
areas are defined early on is essential to successful place-based management under the ecosystem approach. Integrating across
sectors and achieving necessary cooperation between involved institutions and stakeholders is also necessary. 相似文献
93.
Nicole D. Berge Debra R. Reinhart Eyad S. Batarseh 《Waste management (New York, N.Y.)》2009,29(5):1558-1567
Because effective operation of bioreactor landfills involves careful operation and construction of infrastructure beyond that necessary in traditional landfills, upfront capital and operating costs are greater than those associated with traditional landfills. Prior to investing in bioreactor landfills, landfill owners must be convinced that larger short-term expenses (e.g., liquid and/or air injection infrastructure) will be balanced by future economic benefits (e.g., extension of landfill life, reduced leachate treatment costs, etc.). The purpose of this paper is to describe an economic model developed to evaluate the impact of various operational (anaerobic, aerobic, or hybrid) and construction (retrofit and as-built) bioreactor landfill strategies on project economics. Model results indicate retrofit bioreactor landfills are more expensive than traditional landfills, while both the as-built and aerobic bioreactor landfills are less costly. Simulation results indicate the parameters that influence bioreactor economics most significantly are airspace recovery, gas recovery and subsequent use to generate electricity, and savings resulting from reduced leachate treatment costs. 相似文献
94.
Ernst ten Heuvelhof 《生态毒理学报》2001,23(1):59-61
公用事业已经对环境质量产生重要的影响,特别是在市区 .初看起来,放宽限制或公用事业的私有化似乎提供不了任何环境效益 .然而,如果在一个合适的管理法律体制内发生这样一个变化,结果实际上是提高了人们对可持续发展的注意 .关于这一点,给出了一个关于改善公路运输的可持续发展性机会的实例研究 . 相似文献
95.
96.
97.
R. Courant B. L. van der Waerden F. Boschke G. Backenstoss R. Hilsch K. Dimroth D. Reinen R. Schlögl L. Jaenicke L. Horner H. Determann H. Babad C. H. Eugster G. Hesse A. Marxer G. ten Bruggencate H. Brücher H. Autrum H. H. Cramer J. P. Vité O. L. Lange K. Moritz 《Die Naturwissenschaften》1971,58(11):579-584
98.
99.
M. ten Hoopen 《Die Naturwissenschaften》1964,51(21):512-513
100.
Stine Rybråten Maiken Bjørkan Grete K. Hovelsrud Bjørn P. Kaltenborn 《Local Environment》2013,18(12):1156-1171
ABSTRACTNorthern coastal regions are facing multiple challenges from accelerating global environmental and socioeconomic changes, such as ecosystem degradation, climate change, intensified resource extraction, land use change and declining populations. Based on interviews with 13 farmers, fishers and aquaculture employees from coastal Nordland, northern Norway, this study demonstrates how the local stakeholders’ perceptions of change and experiences of vulnerability are closely linked to their livelihood values and worldviews. What the informants consider a sustainable and meaningful way of coastal living does not coincide with national goals for sustainable, natural resource dependent development of the region. The article demonstrates the importance of attending to local values if policymakers and managers are to ensure successful local mobilisation, reduce vulnerability to ongoing and future processes of change, and ensure legitimacy and consistency in development goals of coastal zone management. Insights from this study are useful for local and regional decision makers with responsibility for natural resource policies and development efforts. 相似文献