全文获取类型
收费全文 | 163篇 |
免费 | 3篇 |
专业分类
安全科学 | 2篇 |
废物处理 | 3篇 |
环保管理 | 18篇 |
综合类 | 31篇 |
基础理论 | 37篇 |
环境理论 | 1篇 |
污染及防治 | 58篇 |
评价与监测 | 6篇 |
社会与环境 | 4篇 |
灾害及防治 | 6篇 |
出版年
2023年 | 4篇 |
2022年 | 6篇 |
2021年 | 4篇 |
2020年 | 2篇 |
2019年 | 3篇 |
2018年 | 4篇 |
2017年 | 9篇 |
2016年 | 9篇 |
2015年 | 7篇 |
2014年 | 7篇 |
2013年 | 18篇 |
2012年 | 5篇 |
2011年 | 13篇 |
2010年 | 8篇 |
2009年 | 9篇 |
2008年 | 12篇 |
2007年 | 11篇 |
2006年 | 6篇 |
2005年 | 2篇 |
2004年 | 4篇 |
2003年 | 7篇 |
2002年 | 4篇 |
2001年 | 2篇 |
1998年 | 1篇 |
1997年 | 2篇 |
1994年 | 1篇 |
1993年 | 1篇 |
1991年 | 1篇 |
1990年 | 1篇 |
1988年 | 1篇 |
1985年 | 1篇 |
1982年 | 1篇 |
排序方式: 共有166条查询结果,搜索用时 31 毫秒
161.
Lutts S Lefèvre I Delpérée C Kivits S Dechamps C Robledo A Correal E 《Journal of environmental quality》2004,33(4):1271-1279
To identify Cd- and Zn-accumulating plants exhibiting a high growth rate, seeds from the halophyte species Mediterranean saltbush (Atriplex halimus L.) were collected on a heavy-metal-contaminated site in southeastern Spain (Llano del Beal, Cartagena). Seedlings from this ecotype were exposed for 3 wk to 0.1 mM Cd or Zn in a nutrient solution in a fully controlled environment. All plants remained alive and no significant growth inhibition was recorded until the end of the experiment. Mean Cd and Zn accumulation in aerial parts was 830 and 440 mg kg(-1), respectively, and the rate of metal translocation even increased with the duration of stress exposure. Resistance to heavy metals in this species may be partly linked to precipitation of Cd in oxalate crystals in the stems. A Cd-induced decrease in glutathione concentration also suggests that phytochelatins overproduction may occur in these conditions. We conclude that Mediterranean saltbush, which is able to produce up to 5 Mg dry matter ha(-1) yr(-1), may be an effective species for phytoextraction and should be tested for this purpose in field conditions. 相似文献
162.
Landscape changes over a period of 25 years were assessed for a catchment basin in Normandy, France. Landscape attributes, i.e. land use, land cover and natural habitat, were obtained from aerial photographs (1964, 1989) and soil maps, to define a landscape typology. Data were aggregated on a 500 m×500 m grid system and treated by multivariate analysis. Results of these analysis show that this rural landscape has undergone changes in landcover (mainly grassland receding to crop) as well as changes in spatial structure (mainly increase of plot size and uniformisation). These changes were related to a typology of farms (realised by multivariate analysis of a field survey on the 38 registered farms of the site). Results suggest that (i) farms with a narrow range of production, i.e. specialised farms, are located on a narrow range of environmental conditions and are associated with stable landscapes, while (ii) farms with a broader range of production (i.e. polyculture) are distributed more widely throughout the landscape, and are mostly associated with the landscape changes. 相似文献
163.
Flash floods are characterized by their suddenness, fast and violent movement, rarity, small scale but high level of damage. They are particularly difficult to forecast accurately and there is little lead time for warning. This makes motorists especially vulnerable. Assuming that these flash flood hazard specificities may be the significant factors leading to difficulties for drivers to perceive danger, we used cognitive mapping combined with GIS data processing to assess motorists’ flash flood risk perception on their daily itineraries. The analysis of 200 mental maps collected allows planners to have maps highlighting dangerous areas where risk perception is weak and to identify reasons for this. 相似文献
164.
Cheviron Nathalie Grondin Virginie Marrauld Christelle Poiroux Françoise Bertrand Isabelle Abadie Josiane Pandard Pascal Riah-Anglet Wassila Dubois Caroline Malý Stanislav Marques Catarina R. Asenjo Inmaculada Valverde Alonso Alejandro Díaz Domingo Marquina Mougin Christian 《Environmental science and pollution research international》2022,29(20):29348-29357
Environmental Science and Pollution Research - The evaluation of soil quality requires the use of robust methods to assess biologically based indicators. Among them, enzyme activities are used for... 相似文献
165.
Tschoeke Isabelle Cristine Prohmann Fraga Tiago José Marques da Silva Maryne Patrícia Costa e Souza Thibério Pinho Chinelate Gerla Castello Branco 《Journal of Material Cycles and Waste Management》2023,25(5):2809-2821
Journal of Material Cycles and Waste Management - In this work, biogas was synthesized from malt enriched-craft beer bagasse with the objective to generate clean energy. Thus, a kinetic model based... 相似文献