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   35222篇
  免费   379篇
  国内免费   277篇
安全科学   1124篇
废物处理   1725篇
环保管理   4381篇
综合类   5325篇
基础理论   9020篇
环境理论   15篇
污染及防治   9138篇
评价与监测   2579篇
社会与环境   2370篇
灾害及防治   201篇
  2023年   194篇
  2022年   412篇
  2021年   471篇
  2020年   269篇
  2019年   339篇
  2018年   642篇
  2017年   678篇
  2016年   987篇
  2015年   715篇
  2014年   1143篇
  2013年   2927篇
  2012年   1327篇
  2011年   1741篇
  2010年   1360篇
  2009年   1364篇
  2008年   1715篇
  2007年   1640篇
  2006年   1465篇
  2005年   1273篇
  2004年   1208篇
  2003年   1151篇
  2002年   1055篇
  2001年   1176篇
  2000年   813篇
  1999年   531篇
  1998年   388篇
  1997年   402篇
  1996年   411篇
  1995年   500篇
  1994年   427篇
  1993年   357篇
  1992年   394篇
  1991年   376篇
  1990年   341篇
  1989年   339篇
  1988年   305篇
  1987年   248篇
  1986年   263篇
  1985年   256篇
  1984年   277篇
  1983年   266篇
  1982年   281篇
  1981年   228篇
  1980年   173篇
  1979年   187篇
  1978年   167篇
  1977年   137篇
  1975年   144篇
  1973年   170篇
  1972年   150篇
排序方式: 共有10000条查询结果,搜索用时 640 毫秒
961.
Environmental Science and Pollution Research - Persistent organic pollutants (POPs) are still globally distributed and can exert different effects on ecosystems. Little is known about the...  相似文献   
962.
Environmental Science and Pollution Research - Environmental arsenic exposure in adults and children has been associated with a reduction in the expression of club cell secretory protein (CC16) and...  相似文献   
963.
The COVID-19 pandemic has exposed an interconnected and tightly coupled globalized world in rapid change. This article sets the scientific stage for understanding and responding to such change for global sustainability and resilient societies. We provide a systemic overview of the current situation where people and nature are dynamically intertwined and embedded in the biosphere, placing shocks and extreme events as part of this dynamic; humanity has become the major force in shaping the future of the Earth system as a whole; and the scale and pace of the human dimension have caused climate change, rapid loss of biodiversity, growing inequalities, and loss of resilience to deal with uncertainty and surprise. Taken together, human actions are challenging the biosphere foundation for a prosperous development of civilizations. The Anthropocene reality—of rising system-wide turbulence—calls for transformative change towards sustainable futures. Emerging technologies, social innovations, broader shifts in cultural repertoires, as well as a diverse portfolio of active stewardship of human actions in support of a resilient biosphere are highlighted as essential parts of such transformations.  相似文献   
964.
The provision of ecosystem services is a prominent rationale for urban greening, and there is a prevailing mantra that ‘trees are good’. However, understanding how urban trees contribute to sustainability must also consider disservices. In this perspective article, we discuss recent research on ecosystem disservices of urban trees, including infrastructure conflicts, health and safety impacts, aesthetic issues, and environmentally detrimental consequences, as well as management costs related to ecological disturbances and risk management. We also discuss tradeoffs regarding species selection and local conservation concerns, as well as the central role of human perception in the interpretation of ecosystem services and disservices, particularly the uncritical assertion that ‘everybody loves trees’. Urban forestry decision-making that fails to account for disservices can have unintended negative consequences for communities. Further research is needed regarding life cycle assessments, stakeholder decision-making, return-on-investment, and framings of services and disservices in urban forestry.  相似文献   
965.
Environmental Science and Pollution Research - This work describes the production/characterization of low molar mass chitosan nanoparticles derived from waste shrimp shells (SSC), as well as from a...  相似文献   
966.
967.
Environmental Science and Pollution Research - Cypermethrin (CYP) is a toxic manmade chemical compound belonging to pyrethroid insecticides contaminating the environment. Plantago major (PM) has...  相似文献   
968.
Environmental Science and Pollution Research - The aim of the study was to determine if gold-mining activities could impact the mercury (Hg) concentrations and isotopic signatures in freshwater...  相似文献   
969.
Environmental Science and Pollution Research - Animal breeding for meat production based on swine, cattle, poultry, and aquaculture is an activity that generates several impacts on the environment,...  相似文献   
970.
Environmental Science and Pollution Research - Harmful cyanobacterial blooms (HCB) have severe impacts on marine and freshwater systems worldwide. They cause oxygen depletion and produce potent...  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