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   388篇
  免费   32篇
  国内免费   7篇
安全科学   81篇
废物处理   1篇
环保管理   105篇
综合类   52篇
基础理论   79篇
污染及防治   27篇
评价与监测   12篇
社会与环境   31篇
灾害及防治   39篇
  2023年   8篇
  2022年   20篇
  2021年   24篇
  2020年   11篇
  2019年   24篇
  2018年   13篇
  2017年   22篇
  2016年   21篇
  2015年   21篇
  2014年   11篇
  2013年   40篇
  2012年   18篇
  2011年   14篇
  2010年   18篇
  2009年   25篇
  2008年   16篇
  2007年   18篇
  2006年   19篇
  2005年   12篇
  2004年   11篇
  2003年   9篇
  2002年   12篇
  2001年   5篇
  2000年   5篇
  1999年   7篇
  1998年   5篇
  1997年   5篇
  1996年   2篇
  1995年   1篇
  1994年   3篇
  1992年   4篇
  1988年   1篇
  1985年   1篇
  1984年   1篇
排序方式: 共有427条查询结果,搜索用时 15 毫秒
121.
ABSTRACT

Quests for devolving more power to local actors for nature protection stem from both international and national policies. Also, there is a growing recognition of the need for local governments to promote green infrastructure for citizens to recreate and learn about their environment. Starting in 2004, the Swedish government has allocated special funding towards these goals through the Local Nature Conservation Programme (LONA). Virtually all Swedish municipalities have received such funding in pursuit of facilitating wide access to nature and promoting recreational activities, including the protection of nature areas, creating pathways, information devices, and promoting these areas among new societal groups to enjoy. This study presents the results of ten years of experience with LONA. A survey with respondents from 191 municipalities and 20 county administrations, together with 20 key informant interviews, show that the programme has been a success in several respects. Not only have most municipalities created a wealth of new ways to engage local organisations and citizens in nature conservation and recreation, but they have also broadened the ways they think about how nature is important to their constituencies. Due to innovative ways to count voluntary work as local matching of funding, smaller and less resourceful municipalities have also become engaged. Still, the local needs for further initiatives are deemed considerable. State support coupled with knowledge sharing is important to show policy priority to such bottom-up initiatives.  相似文献   
122.
对安全科学理论中的安全、安全技术、安全系统、安全性与危险性、危险墒与危险度、安全管理与安全信息、安全本质与安全本质化等概念提出了新认识。  相似文献   
123.
安全科学的研究对象与知识体系   总被引:1,自引:6,他引:1  
在研讨安全科学和学科内涵若干论述的基础上,以科学、交叉科学、辩证唯物主义为指导,对安全科学的研究对象、安全科学的知识体系、安全科学综合理论体系的构成进行了表述。以大安全观为主线,给出了安全科学是以人们在生活、生产、生存领域的安全问题为研究对象;研究具有复杂的、巨系统特点的安全系统的结构,研究其由安全态如何突变、势垒跃迁转化为另一个安全态;研究消除或控制危害因素的理论和技术;研究如何控制和回避风险;研究安全观念和思维知识体系的一门交叉学科。特别阐明了安全科学研究对象的特殊性及其要揭示的特殊规律。试图确立安全科学的科学地位。  相似文献   
124.
This study investigates the influence of knowledge on opinions about climate change in the emerging adults’ age group (16–17 years). Furthermore, the effects of a lecture in climate change science on knowledge and opinions were assessed. A survey was conducted in Austria and Denmark on 188 students in national and international schools before and after a lecture in climate change science. The results show that knowledge about climate change science significantly affects opinions about climate change. Students with a higher number of correct answers are more likely to have the opinion that humans are causing climate change and that both individuals and governments are responsible for addressing climate change. The lecture in climate change science significantly improved knowledge development but did not affect opinions. Knowledge was improved by 11 % after the lecture. However, the percentage of correct answers was still below 60 % indicating an urgent need for improving climate change science education.  相似文献   
125.
Combating desertification requires the involvement of many people ranging from communities who experience the effects on a daily basis and scientists attempting to understand the biophysical and socio-economic causes and consequences of desertification, to developers and policy makers on all levels. In many instances, however, the understanding, approaches and actions of these different groups contradict rather than support one another. Over the period 2000 to 2002, a conference process undertaken in southern Africa brought together communities, scientists, and development workers to test the concept that they could connect and work together to combat desertification, given an appropriate framework. The conference was a success, and communities, scientists and developers did exchange experience, knowledge and information. Many lessons were learned, although some pitfalls were experienced. Time, funding, enhanced communication, and good will are the primary ingredients for ensuring that different sectors complement one another in their efforts to combat desertification.  相似文献   
126.
The Thar Desert of western India is known for its rich and ancient culture system and traditions. The communities have long been part of the Thar Desert ecosystem and have evolved specific strategies to live in harmony with its hostile environment. This culture has provided several miracle plants of immense food and medicinal value to modern civilisation. The ancient rural livelihood knowledge system reflects time-tested techno-scientific knowledge with a proven track record of sustainability, especially during natural hazards like drought and famines. In addition, several of the traditional skills of local communities in arts and crafts, music and instruments have made modern man aware of the art and techniques of sustainably utilising local biological resources and preserving their biodiversity along with using waste products of the forests, without harming the desert ecosystem. Traditional cultural and socio-religious values are fast dwindling under the impact of materialistic approach, industrialisation and development. This paper endeavours to illustrate the need to assist and propagate indigenous rural livelihood systems rather than mindlessly replace or abandon them as a result of state bureaucracies.  相似文献   
127.
Community knowledge exchanges have played a key role in developmental processes in the Suid Bokkeveld community of South Africa. Two exchange visits were undertaken with the support of the Department of Agriculture and an NGO, the Environmental Monitoring Group, which have led to local economic development and enhanced capacity to manage natural resources in a sustainable manner. These pilot projects were undertaken within the framework of the Community Exchange and Training Programme of the Global Mechanism of the United Nations Convention to Combat Desertification (UNCCD). The methodology applied included facilitation to develop a community-based vision for development, in terms of which the community exchange process was designed. A Facilitation Team of service providers conducted preparatory workshops, and identified potential partner communities. Two exchange visits were carried out, one focused on Rooibos production and marketing, and the other on community-based eco-tourism. Following report-back and planning workshops, emerging community-driven initiatives were supported through their formative stages. The initiatives have not only resulted in enhanced livelihoods, but the methodology has also been applied widely in a number of different contexts.  相似文献   
128.
For effective monitoring in social–ecological systems to meet needs for biodiversity, science, and humans, desired outcomes must be clearly defined and routes from direct to derived outcomes understood. The Arctic is undergoing rapid climatic, ecological, social, and economic changes and requires effective wildlife monitoring to meet diverse stakeholder needs. To identify stakeholder priorities concerning desired outcomes of arctic wildlife monitoring, we conducted in-depth interviews with 29 arctic scientists, policy and decision makers, and representatives of indigenous organizations and nongovernmental organizations. Using qualitative content analysis, we identified and defined desired outcomes and documented links between outcomes. Using network analysis, we investigated the structure of perceived links between desired outcomes. We identified 18 desired outcomes from monitoring and classified them as either driven by monitoring information, monitoring process, or a combination of both. Highly cited outcomes were make decisions, conserve, detect change, disseminate, and secure food. These reflect key foci of arctic monitoring. Infrequently cited outcomes (e.g., govern) were emerging themes. Three modules comprised our outcome network. The modularity highlighted the low strength of perceived links between outcomes that were primarily information driven or more derived (e.g., detect change, make decisions, conserve, or secure food) and outcomes that were primarily process driven or more derived (e.g., cooperate, learn, educate). The outcomes expand monitoring community and disseminate created connections between these modules. Key desired outcomes are widely applicable to social–ecological systems within and outside the Arctic, particularly those with wildlife subsistence economies. Attributes and motivations associated with outcomes can guide development of integrated monitoring goals for biodiversity conservation and human needs. Our results demonstrated the disconnect between information- and process-driven goals and how expansion of the monitoring community and improved integration of monitoring stakeholders will help connect information- and process-derived outcomes for effective ecosystem stewardship.  相似文献   
129.
为了研究地铁乘客安全行为的影响因素,通过对北京、上海、广州、深圳等城市的地铁乘客的多项安全指标的抽样调查,建立了关于乘客安全行为的结构方程模型,研究了影响地铁乘客安全行为的主要因素。结果表明:良好的地铁安全氛围能有效提高乘客的安全知识水平、安全动机、安全心理水平、安全参与行为水平;安全参与行为水平同时受到乘客安全知识水平和乘客接受安全培训状况的影响,其中,乘客安全知识水平的高低取决于乘客接受安全培训状况;安全服从行为则与安全动机存在较强的正相关关系;乘客的安全心理水平只跟地铁安全氛围有关,安全氛围越好,乘客安全心理水平越高,安全知识作为中介变量同时影响着安全氛围与安全参与行为、安全培训与安全参与行为、安全氛围与安全动机以及安全培训与安全动机之间的关系,提高乘客安全知识水平是提高乘客安全行为水平的重要途径。  相似文献   
130.
Only a few rigorous studies have attempted to focus on the topic of plant indicators in relation to natural disasters, although recently an increasing number of people have realized its significance. In an effort to aid disaster management, this article studied and aimed to improve the status of plant indicators in predicting or signaling natural disasters. Using a qualitative content analysis, the plant indicators’ uncertain status and certain status are systematically compared using specific plants, developed community efforts, indigenous community traditions, and characteristics of natural disaster management. A key tenet is that all stakeholders must change plant indicators’ uncertain status to certain status by comprehensively elaborating on the integration between developed communities and indigenous communities, plant indicators as a research agenda, the inclusion of plant indicators in disaster management policy and local plans, and education and training.  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