全文获取类型
收费全文 | 33522篇 |
免费 | 364篇 |
国内免费 | 270篇 |
专业分类
安全科学 | 985篇 |
废物处理 | 1610篇 |
环保管理 | 4066篇 |
综合类 | 6187篇 |
基础理论 | 8498篇 |
环境理论 | 14篇 |
污染及防治 | 8099篇 |
评价与监测 | 2328篇 |
社会与环境 | 2173篇 |
灾害及防治 | 196篇 |
出版年
2023年 | 159篇 |
2022年 | 301篇 |
2021年 | 355篇 |
2020年 | 220篇 |
2019年 | 278篇 |
2018年 | 500篇 |
2017年 | 510篇 |
2016年 | 787篇 |
2015年 | 597篇 |
2014年 | 943篇 |
2013年 | 2638篇 |
2012年 | 1129篇 |
2011年 | 1447篇 |
2010年 | 1210篇 |
2009年 | 1261篇 |
2008年 | 1533篇 |
2007年 | 1483篇 |
2006年 | 1319篇 |
2005年 | 1169篇 |
2004年 | 1119篇 |
2003年 | 1090篇 |
2002年 | 1014篇 |
2001年 | 1162篇 |
2000年 | 827篇 |
1999年 | 538篇 |
1998年 | 414篇 |
1997年 | 416篇 |
1996年 | 420篇 |
1995年 | 511篇 |
1994年 | 440篇 |
1993年 | 371篇 |
1992年 | 402篇 |
1991年 | 385篇 |
1990年 | 363篇 |
1989年 | 353篇 |
1988年 | 321篇 |
1987年 | 259篇 |
1986年 | 267篇 |
1985年 | 282篇 |
1984年 | 284篇 |
1983年 | 267篇 |
1982年 | 292篇 |
1981年 | 239篇 |
1980年 | 189篇 |
1979年 | 213篇 |
1978年 | 187篇 |
1977年 | 162篇 |
1973年 | 194篇 |
1972年 | 161篇 |
1967年 | 164篇 |
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
91.
92.
93.
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
94.
Oktay Yildiz Ernaz Altundağ Bilal Çetin Ş. Teoman Güner Murat Sarginci Bulent Toprak 《Environmental monitoring and assessment》2018,190(6):355
The afforestation of arid lands faces many challenges, and perhaps the most important key for success is choosing one or more species that are adapted well for local environmental conditions. We explored species that would be suitable for the steppe region of Central Anatolia. Intensive site preparation included ripping the subsoil (to 80 cm) and plowing the upper soil before planting seedlings of Elaeagnus angustifolia, Robinia pseudoacacia, Fraxinus angustifolia, and Pinus nigra were used as tree species. We also tested the success of several shrub species: Amygdalus orientalis, Calligonum polygonoides, and Spartium junceum. After five growing seasons, E. angustifolia showed the highest survival, with 80% of planted seedlings remaining. For the shrubs, A. orientalis was the most successful species with a 95% survival rate. Broad-leaved trees grew a cumulative average of 34 cm in height in 5 years, whereas P. nigra seedings grew only 9 cm. The greatest height growth occurred in the shrubs, with A. orientalis gaining 40 cm in height in 5 years. Overall, E. angustifolia and A. orientalis appeared best suited for afforestation in these areas. R. pseodoacacia and F. angustifolia may also be used as alternative species. 相似文献
95.
96.
Developing Effective Decision Support for the Application of “Gentle” Remediation Options: The GREENLAND Project 下载免费PDF全文
Andy Cundy Paul Bardos Markus Puschenreiter Nele Witters Michel Mench Valerie Bert Wolfgang Friesl‐Hanl Ingo Müller Nele Weyens Jaco Vangronsveld 《补救:环境净化治理成本、技术与工艺杂志》2015,25(3):101-114
Gentle remediation options (GRO) are risk management strategies/technologies that result in a net gain (or at least no gross reduction) in soil function as well as risk management. They encompass a number of technologies, including the use of plant (phyto‐), fungi (myco‐), and/or bacteria‐based methods, with or without chemical soil additives or amendments, for reducing contaminant transfer to local receptors by in situ stabilization, or extraction, transformation, or degradation of contaminants. Despite offering strong benefits in terms of risk management, deployment costs, and sustainability for a range of site problems, the application of GRO as practical on‐site remedial solutions is still in its relative infancy, particularly for metal(loid)‐contaminated sites. A key barrier to wider adoption of GRO relates to general uncertainties and lack of stakeholder confidence in (and indeed knowledge of) the feasibility or reliability of GRO as practical risk management solutions. The GREENLAND project has therefore developed a simple and transparent decision support framework for promoting the appropriate use of gentle remediation options and encouraging participation of stakeholders, supplemented by a set of specific design aids for use when GRO appear to be a viable option. The framework is presented as a three phased model or Decision Support Tool (DST), in the form of a Microsoft Excel‐based workbook, designed to inform decision‐making and options appraisal during the selection of remedial approaches for contaminated sites. The DST acts as a simple decision support and stakeholder engagement tool for the application of GRO, providing a context for GRO application (particularly where soft end‐use of remediated land is envisaged), quick reference tables (including an economic cost calculator), and supporting information and technical guidance drawing on practical examples of effective GRO application at trace metal(loid) contaminated sites across Europe. This article introduces the decision support framework. ©2015 Wiley Periodicals, Inc. 相似文献
97.
98.
99.
100.