首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   90533篇
  免费   1224篇
  国内免费   1095篇
安全科学   3580篇
废物处理   3321篇
环保管理   13980篇
综合类   21054篇
基础理论   26262篇
环境理论   71篇
污染及防治   14952篇
评价与监测   5465篇
社会与环境   3616篇
灾害及防治   551篇
  2022年   726篇
  2021年   801篇
  2020年   646篇
  2019年   861篇
  2018年   1126篇
  2017年   1151篇
  2016年   2168篇
  2015年   1827篇
  2014年   2584篇
  2013年   9240篇
  2012年   2222篇
  2011年   2468篇
  2010年   3256篇
  2009年   3407篇
  2008年   2045篇
  2007年   1903篇
  2006年   2326篇
  2005年   2289篇
  2004年   2614篇
  2003年   2443篇
  2002年   1997篇
  2001年   2289篇
  2000年   2023篇
  1999年   1443篇
  1998年   1331篇
  1997年   1316篇
  1996年   1449篇
  1995年   1574篇
  1994年   1460篇
  1993年   1318篇
  1992年   1305篇
  1991年   1284篇
  1990年   1226篇
  1989年   1200篇
  1988年   1042篇
  1987年   985篇
  1986年   989篇
  1985年   1064篇
  1984年   1162篇
  1983年   1169篇
  1982年   1172篇
  1981年   1102篇
  1980年   942篇
  1979年   932篇
  1978年   819篇
  1977年   721篇
  1976年   645篇
  1975年   604篇
  1973年   638篇
  1972年   640篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
71.
Environmental Science and Pollution Research - Despite that commuters spend only 5.5% of their time in cabin vehicles, their exposure to harmful air pollutants, originated from the vehicle itself,...  相似文献   
72.
Russian Journal of Ecology - A new method for assessing the response of biota to climatic changes in the ecosystem has been tested. In the Central Forest Natural Biosphere Reserve, the average...  相似文献   
73.
Environment, Development and Sustainability - Sugarcane is an industrial crop globally used for producing biofuels and bioproducts and is the only source of white sugar in Bangladesh. However,...  相似文献   
74.
Russian Journal of Ecology - In this paper, Ellenberg’s indicator values were estimated in order to soil nitrogen (N), pH (R) and soil moisture (M) in different subalpine grassland...  相似文献   
75.
Environmental Economics and Policy Studies - Streets are an essential element of cities, and their design has a profound impact on their functionality to the movement of people and their...  相似文献   
76.
77.
Environmental Science and Pollution Research - Lake Mariut Main Basin (MB) is not only one of the three basins composing Lake Mariut (LM) but is also the main source of the popular tilapia fish to...  相似文献   
78.
Russian Journal of Ecology - In the southern tip of the Urals, late spring frosts, which regularly damage the leaves of the common oak (Quercus robur L.), are reflected in the formation of a...  相似文献   
79.
Environmental Science and Pollution Research - This study aims to re-examine the impacts of monetary and fiscal policy on environmental quality in ASEAN countries from 1990 to 2019. We utilized the...  相似文献   
80.
Understanding human behavior is vital to developing interventions that effectively lead to proenvironmental behavior change, whether the focus is at the individual or societal level. However, interventions in many fields have historically lacked robust forms of evaluation, which makes it hard to be confident that these conservation interventions have successfully helped protect the environment. We conducted a systematic review to assess how effective nonpecuniary and nonregulatory interventions have been in changing environmental behavior. We applied the Office of Health Assessment and Translation systematic review methodology. We started with more than 300,000 papers and reports returned by our search terms and after critical appraisal of quality identified 128 individual studies that merited inclusion in the review. We classified interventions by thematic area, type of intervention, the number of times audiences were exposed to interventions, and the length of time interventions ran. Most studies reported a positive effect (n = 96). The next most common outcome was no effect (n = 28). Few studies reported negative (n = 1) or mixed (n = 3) effects. Education, prompts, and feedback interventions resulted in positive behavior change. Combining multiple interventions was the most effective. Neither exposure duration nor frequency affected the likelihood of desired behavioral change. Comparatively few studies tested the effects of voluntary interventions on non-Western populations (n = 17) or measured actual ecological outcome behavior (n = 1). Similarly, few studies examined conservation devices (e.g., energy-efficient stoves) (n = 9) and demonstrations (e.g., modeling the desired behavior) (n = 5). There is a clear need to both improve the quality of the impact evaluation conducted and the reporting standards for intervention results.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号