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   10852篇
  免费   402篇
  国内免费   3914篇
安全科学   802篇
废物处理   702篇
环保管理   929篇
综合类   5693篇
基础理论   1818篇
环境理论   2篇
污染及防治   4008篇
评价与监测   429篇
社会与环境   362篇
灾害及防治   423篇
  2024年   5篇
  2023年   173篇
  2022年   533篇
  2021年   445篇
  2020年   312篇
  2019年   293篇
  2018年   391篇
  2017年   502篇
  2016年   460篇
  2015年   600篇
  2014年   887篇
  2013年   1136篇
  2012年   967篇
  2011年   981篇
  2010年   751篇
  2009年   728篇
  2008年   816篇
  2007年   657篇
  2006年   545篇
  2005年   404篇
  2004年   321篇
  2003年   395篇
  2002年   328篇
  2001年   290篇
  2000年   299篇
  1999年   275篇
  1998年   279篇
  1997年   261篇
  1996年   244篇
  1995年   192篇
  1994年   133篇
  1993年   137篇
  1992年   110篇
  1991年   92篇
  1990年   69篇
  1989年   32篇
  1988年   35篇
  1987年   12篇
  1986年   19篇
  1985年   13篇
  1984年   11篇
  1983年   8篇
  1982年   9篇
  1981年   9篇
  1975年   1篇
  1974年   2篇
  1973年   1篇
  1972年   2篇
  1971年   1篇
  1968年   1篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
Environmental Science and Pollution Research - The existing literature on the environmental Kuznets curve (EKC) fails to investigate the spatial attribute of the “pollution halo” effect...  相似文献   
2.
Environmental Science and Pollution Research - Growing environmental pressure urges China to develop in a sustainable and low carbon way, and thus China strives to achieve a carbon peak by 2030 and...  相似文献   
3.
Environmental Science and Pollution Research - The impact of high concentrations of air pollution on COVID-19 has been a major air quality and life safety issue in recent studies. This study aimed...  相似文献   
4.
The CO2 absorption capacities of potassium glycinate, potassium sarcosinate (choline, proline), mono-ethanolamine (MEA), and tri-ethanolamine were evaluated to find the optimal absorbent for separating CO2 from gaseous products by a CO2 purification process. The absorption loading, desorption efficiency, cost, and environmental tolerance were assessed to select the optimal absorbent. MEA was found to be the optimum absorbent for separating the CO2 and H2 mixture in gaseous product. The maximum absorption loading rate was 0.77 mol CO2 per mol MEA at temperature of 20°C and absorbent concentration of 2.5 mol/L, whereas desorption efficiency was 90% by heating for 3 h at 130°C. MEA was found to be an optimal absorbent for the purification process of CO2 during gaseous production.  相似文献   
5.
6.
Environmental Science and Pollution Research - China is the most populous country in the world, and the pollution caused by the excessive population should not be underestimated. In recent years,...  相似文献   
7.
Environmental Science and Pollution Research - Phosphorus is an essential macro-mineral nutrient for poultry, needed for the body growth, development of bones, genomic function, good...  相似文献   
8.
Tang  Zhi  Li  Yilian  Yang  Zhe  Liu  Danqing  Tang  Min  Yang  Sen  Tang  Ye 《Environmental science and pollution research international》2019,26(20):20277-20285
Environmental Science and Pollution Research - The sorption/desorption behaviors of benzene, toluene, ethylbenzene, and xylene (BTEX) on soil organic matter (SOM) have a significant influence on...  相似文献   
9.
Land degradation is a global problem that seriously threatens human society. However, in China and elsewhere, ecological restoration still largely relies on a traditional approach that focuses only on ecological factors and ignores socioeconomic factors. To improve the effectiveness of ecological restoration and maximize its economic and ecological benefits, a more efficient approach is needed that provides support for policy development and land management and thereby promotes environmental conservation. We devised a framework for assessing the value of ecosystem services that remain after subtracting costs, such as the opportunity costs, costs of forest protection, and costs for the people who are affected by the program; that is, the net value of ecosystem services (NVES). To understand the difference between the value of a resource and the net value of the ecosystem service it provides, we used data on VES, timber sales, and afforestation costs from China's massive national afforestation programs to calculate the net value of forest ecosystem services in China. Accounting for the abovementioned costs revealed an NVES of ¥6.1 × 1012 for forests in 2014, which was 35.9% less than the value calculated without accounting for costs. As a result, the NVES associated with afforestation was 55.9% less than the NVES of natural forests. In some regions, NVES was negative because of the huge costs of human-made plantations, high evapotranspiration rates (thus, high water opportunity costs), and low forest survival rates. To maximize the ecological benefits of conservation, it is necessary to account for as many costs as possible so that management decisions can be based on NVES, thereby helping managers choose projects that maximize both economic and ecological benefits.  相似文献   
10.
Environmental Science and Pollution Research - A Correction to this paper has been published: https://doi.org/10.1007/s11356-021-15526-6  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