全文获取类型
收费全文 | 32021篇 |
免费 | 755篇 |
国内免费 | 5609篇 |
专业分类
安全科学 | 1394篇 |
废物处理 | 1631篇 |
环保管理 | 3542篇 |
综合类 | 10865篇 |
基础理论 | 7285篇 |
环境理论 | 7篇 |
污染及防治 | 9878篇 |
评价与监测 | 1622篇 |
社会与环境 | 1437篇 |
灾害及防治 | 724篇 |
出版年
2023年 | 296篇 |
2022年 | 814篇 |
2021年 | 674篇 |
2020年 | 516篇 |
2019年 | 581篇 |
2018年 | 786篇 |
2017年 | 890篇 |
2016年 | 1055篇 |
2015年 | 1131篇 |
2014年 | 1535篇 |
2013年 | 2956篇 |
2012年 | 1721篇 |
2011年 | 2012篇 |
2010年 | 1534篇 |
2009年 | 1528篇 |
2008年 | 1745篇 |
2007年 | 1654篇 |
2006年 | 1516篇 |
2005年 | 1136篇 |
2004年 | 1048篇 |
2003年 | 1114篇 |
2002年 | 994篇 |
2001年 | 1171篇 |
2000年 | 926篇 |
1999年 | 770篇 |
1998年 | 673篇 |
1997年 | 577篇 |
1996年 | 566篇 |
1995年 | 543篇 |
1994年 | 507篇 |
1993年 | 414篇 |
1992年 | 406篇 |
1991年 | 318篇 |
1990年 | 331篇 |
1989年 | 300篇 |
1988年 | 243篇 |
1987年 | 208篇 |
1986年 | 186篇 |
1985年 | 188篇 |
1984年 | 216篇 |
1983年 | 203篇 |
1982年 | 201篇 |
1981年 | 195篇 |
1980年 | 143篇 |
1979年 | 159篇 |
1978年 | 136篇 |
1977年 | 118篇 |
1975年 | 126篇 |
1974年 | 122篇 |
1972年 | 146篇 |
排序方式: 共有10000条查询结果,搜索用时 109 毫秒
1.
Kalan Mohammad Ebrahimi Ghobadi Hassan Taleb Ziyad Ben Adham Davoud Cobb Caroline O Ward Kenneth D Behaleh Raed Fazlzadeh Mehdi 《Environmental science and pollution research international》2021,28(30):40346-40354
Environmental Science and Pollution Research - There is mixed evidence surrounding the relationship between tobacco use and COVID-19 infection/progression. The current study investigates beliefs... 相似文献
2.
Babut Marc Marchand Philippe Venisseau Anaïs Veyrand Bruno Ferrari Benoit J. D. 《Environmental science and pollution research international》2021,28(7):7766-7773
Environmental Science and Pollution Research - Legacy (i.e., polybrominated diphenyl ethers (PBDEs) and hexabromocyclododecane (HBCDD)) and alternative halogenated flame retardants (HFRs) were... 相似文献
3.
Uptake and concentration of heavy metals in dominant mangrove species from Hainan Island,South China
Wang Junguang Wang Peng Zhao Zhizhong Huo Yanru 《Environmental geochemistry and health》2021,43(4):1703-1714
Environmental Geochemistry and Health - By investigating three dominant mangrove species, namely Aegiceras corniculatum, Kandelia candel, Ceriops tagal and their rhizosediment in Mangrove wetlands... 相似文献
4.
Wang Chunbo Cai Qijia Li Yang Tian Cuicui Wu Xingqiang Huang Yuhong Xiao Bangding 《Environmental science and pollution research international》2021,28(31):42082-42092
Environmental Science and Pollution Research - A mechanical harvesting technology based on coupling flocculation with a rotary drum filter (RDF, 35-μm) was applied to remove cyanobacterial... 相似文献
5.
Li Ying Rong Yanyu Ahmad Umme Marium Wang Xiaotong Zuo Jian Mao Guozhu 《Environmental science and pollution research international》2021,28(34):46196-46214
Environmental Science and Pollution Research - Buildings account for nearly 2/5ths of global energy expenditure. Due to this figure, the 90s witnessed the rise of green buildings (GBs) that were... 相似文献
6.
Yang Nian Chen Lei Wang Wenzhuo Shen Zhenyao 《Environmental science and pollution research international》2021,28(37):51356-51368
Environmental Science and Pollution Research - At present, the contradiction between survival and ecology necessitates the integration of crop planting, chemical fertilizer application, and... 相似文献
7.
Zhu Rong Wang Shixin Srinivasakannan C. Li Shiwei Yin Shaohua Zhang Libo Jiang Xiaobin Zhou Guoli Zhang Ning 《Environmental Chemistry Letters》2023,21(3):1611-1626
Environmental Chemistry Letters - The demand for lithium is growing rapidly with the increase in electric vehicles, batteries and electronic equipments. Lithium can be extracted from brines, yet... 相似文献
8.
为了解全氟辛烷磺酸盐(perfluorooctane sulfonate, PFOS)暴露对半滑舌鳎(Cynoglossus semilaevis)免疫功能的影响,在实验室条件下,运用RT-PCR方法分析了PFOS暴露对半滑舌鳎热休克蛋白hsp70、hsp90、C型凝集素(c-type lectin)和细胞色素c氧化酶(cytochrome c oxidase, cox)等4种免疫相关基因表达水平的影响。实验测定了上述4种基因在半滑舌鳎肝、鳃、肠及肌肉4种不同组织中随时间(0、24 h、48 h、96 h和7 d)的表达变化情况。结果表明,在4种组织中,hsp70基因的表达与对照相比为上调,其中,肝组织hsp70基因的表达量显著高于其他各组织,且表达高峰值的出现也早于其他各组织;hsp90基因在肝和鳃组织中表达量随时间不同而波动,在肠组织中表达上调,在肌肉中表达显著下调;c-type lectin基因表达量与对照组相比表达显著下调或无明显差异;cox基因在肝组织和肠组织中表达下调,在鳃和肌肉中表达上调。上述研究结果表明,PFOS能引起免疫相关基因的表达变化,对半滑舌鳎具有潜在的免疫毒性。肝组织中各免疫基因对PFOS胁迫的响应高于其他组织。本研究可为阐明全氟辛烷磺酸盐对半滑舌鳎的免疫毒性提供基础数据。 相似文献
9.
10.
Mehmet B. Ercan Iman Maghami Benjamin D. Bowes Mohamed M. Morsy Jonathan L. Goodall 《Journal of the American Water Resources Association》2020,56(1):53-67
Climate change poses water resource challenges for many already water stressed watersheds throughout the world. One such watershed is the Upper Neuse Watershed in North Carolina, which serves as a water source for the large and growing Research Triangle Park region. The aim of this study was to quantify possible changes in the watershed’s water balance due to climate change. To do this, we used the Soil and Water Assessment Tool (SWAT) model forced with different climate scenarios for baseline, mid‐century, and end‐century time periods using five different downscaled General Circulation Models. Before running these scenarios, the SWAT model was calibrated and validated using daily streamflow records within the watershed. The study results suggest that, even under a mitigation scenario, precipitation will increase by 7.7% from the baseline to mid‐century time period and by 9.8% between the baseline and end‐century time period. Over the same periods, evapotranspiration (ET) would decrease by 5.5 and 7.6%, water yield would increase by 25.1% and 33.2%, and soil water would increase by 1.4% and 1.9%. Perhaps most importantly, the model results show, under a high emission scenario, large seasonal differences with ET estimated to decrease by up to 42% and water yield to increase by up to 157% in late summer and fall. Planning for the wetter predicted future and corresponding seasonal changes will be critical for mitigating the impacts of climate change on water resources. 相似文献