全文获取类型
收费全文 | 13448篇 |
免费 | 1194篇 |
国内免费 | 1302篇 |
专业分类
安全科学 | 1574篇 |
废物处理 | 184篇 |
环保管理 | 2895篇 |
综合类 | 6683篇 |
基础理论 | 1165篇 |
环境理论 | 47篇 |
污染及防治 | 524篇 |
评价与监测 | 1897篇 |
社会与环境 | 819篇 |
灾害及防治 | 156篇 |
出版年
2024年 | 56篇 |
2023年 | 186篇 |
2022年 | 265篇 |
2021年 | 340篇 |
2020年 | 417篇 |
2019年 | 354篇 |
2018年 | 337篇 |
2017年 | 598篇 |
2016年 | 628篇 |
2015年 | 694篇 |
2014年 | 662篇 |
2013年 | 959篇 |
2012年 | 974篇 |
2011年 | 961篇 |
2010年 | 783篇 |
2009年 | 740篇 |
2008年 | 520篇 |
2007年 | 824篇 |
2006年 | 817篇 |
2005年 | 739篇 |
2004年 | 604篇 |
2003年 | 649篇 |
2002年 | 459篇 |
2001年 | 440篇 |
2000年 | 433篇 |
1999年 | 298篇 |
1998年 | 217篇 |
1997年 | 202篇 |
1996年 | 152篇 |
1995年 | 154篇 |
1994年 | 99篇 |
1993年 | 97篇 |
1992年 | 54篇 |
1991年 | 39篇 |
1990年 | 33篇 |
1989年 | 26篇 |
1988年 | 16篇 |
1987年 | 9篇 |
1986年 | 11篇 |
1985年 | 6篇 |
1984年 | 8篇 |
1982年 | 7篇 |
1981年 | 7篇 |
1980年 | 12篇 |
1979年 | 12篇 |
1978年 | 6篇 |
1977年 | 8篇 |
1975年 | 6篇 |
1973年 | 6篇 |
1972年 | 5篇 |
排序方式: 共有10000条查询结果,搜索用时 406 毫秒
991.
对热电企业的环境监管工作是环保部门的重要职责,根据在对热电企业日常监管中遇到的问题,论述了监管的常用方法,包括监督企业环境管理落实情况、核查企业环保数据真实性及重视群众对企业的监督,并就相关工作展开了具体讨论。 相似文献
992.
993.
Ojedokun O 《Waste management (New York, N.Y.)》2011,31(12):2601-2611
The study tested whether attitude towards littering mediates the relationship between personality attributes (altruism and locus of control) and responsible environmental behavior (REB) among some residents of Ibadan metropolis, Nigeria. Using multistage sampling technique, measures of each construct were administered to 1360 participants. Results reveal significant independent and joint influence of personality attributes on attitude towards littering and responsible environmental behavior, respectively. Attitude towards littering also mediates the relationship between personality characteristics and REB. These findings imply that individuals who possess certain desirable personality characteristics and who have unfavorable attitude towards littering have more tendencies to engage in pro-environmental behavior. Therefore, stakeholders who have waste management as their priority should incorporate this information when guidelines for public education and litter prevention programs are being developed. It is suggested that psychologists should be involved in designing of litter prevention strategies. This will ensure the inclusion of behavioral issues in such strategies. An integrated approach to litter prevention that combines empowerment, cognitive, social, and technical solutions is recommended as the most effective tool of tackling the litter problem among residents of Ibadan metropolis. 相似文献
994.
Environmental assessment of garden waste management in the Municipality of Aarhus, Denmark 总被引:1,自引:0,他引:1
An environmental assessment of six scenarios for handling of garden waste in the Municipality of Aarhus (Denmark) was performed from a life cycle perspective by means of the LCA-model EASEWASTE. In the first (baseline) scenario, the current garden waste management system based on windrow composting was assessed, while in the other five scenarios alternative solutions including incineration and home composting of fractions of the garden waste were evaluated. The environmental profile (normalised to Person Equivalent, PE) of the current garden waste management in Aarhus is in the order of −6 to 8 mPE Mg−1 ww for the non-toxic categories and up to 100 mPE Mg−1 ww for the toxic categories. The potential impacts on non-toxic categories are much smaller than what is found for other fractions of municipal solid waste. Incineration (up to 35% of the garden waste) and home composting (up to 18% of the garden waste) seem from an environmental point of view suitable for diverting waste away from the composting facility in order to increase its capacity. In particular the incineration of woody parts of the garden waste improved the environmental profile of the garden waste management significantly. 相似文献
995.
996.
997.
Kristie Byrum 《Environmental Communication: A Journal of Nature and Culture》2019,13(2):209-221
This study addresses the use of message carriers to convey corporate social responsibility information to promote eco-purchasing involvement. The work tests various media formats transmitted via social media. The effects of corporate vs. peer communication in a corporate social responsibility campaign in stimulating self-reported eco-purchasing involvement are indicated. The research varies communication dimensions of a fictional corporate social responsibility campaign sent through social media. Multiple media formats; new release; article; and advertisement were tested, as was the inclusion of social media persuasive sentiment. The analysis of source/format combinations and source/format/sentiment combinations found statistically significant differences for consumer-to-consumer communication in stimulating eco-purchasing involvement in certain circumstances. This research suggests an emerging role for the consumer communicator as a content co-creator and validates the effective use of articles and news releases instead of advertising on social media, yielding managerial and scholarly implications. 相似文献
998.
介绍了灰霾遥感监测的基本原理,论述了基于图像变换的TC法、HOT法和基于反演气溶胶光学厚度的灰霾遥感监测技术,以及造成灰霾天气的秸秆燃烧遥感监测方法.指出卫星遥感技术可以提供大尺度、长时间序列的污染物时空分布特征和变化趋势,以及全球性的大气环境综合遥感数据,是灰霾监测与综合治理的重要途径. 相似文献
999.
简述了“数字环保”到“智慧环保”的概念与发展背景.指出环境信息化要实现从“数字环保”到“智慧环保”的跨越,物联网技术是实现跨越的基础.提出,构建立体化、智能化的覆盖全国的环保领域物联网平台,实现由“数字环保”向“智慧环保”的转化,将是一个系统、长期的工程.“十二五”期间,从总量减排四项约束性指标和固废、危废监管等重点领... 相似文献
1000.
水体重金属污染生物监测的研究进展 总被引:12,自引:3,他引:12
综述了重金属的毒性效应和水体重金属污染的现状,介绍了利用水生藻类、浮游动物群落和底栖动物监测水体重金属污染的研究进展及发展趋势。 相似文献