全文获取类型
收费全文 | 877篇 |
免费 | 120篇 |
国内免费 | 27篇 |
专业分类
安全科学 | 43篇 |
废物处理 | 2篇 |
环保管理 | 356篇 |
综合类 | 292篇 |
基础理论 | 74篇 |
环境理论 | 31篇 |
污染及防治 | 27篇 |
评价与监测 | 21篇 |
社会与环境 | 130篇 |
灾害及防治 | 48篇 |
出版年
2024年 | 4篇 |
2023年 | 18篇 |
2022年 | 40篇 |
2021年 | 55篇 |
2020年 | 58篇 |
2019年 | 62篇 |
2018年 | 63篇 |
2017年 | 88篇 |
2016年 | 101篇 |
2015年 | 68篇 |
2014年 | 32篇 |
2013年 | 80篇 |
2012年 | 26篇 |
2011年 | 57篇 |
2010年 | 23篇 |
2009年 | 23篇 |
2008年 | 26篇 |
2007年 | 29篇 |
2006年 | 29篇 |
2005年 | 23篇 |
2004年 | 24篇 |
2003年 | 14篇 |
2002年 | 7篇 |
2001年 | 8篇 |
2000年 | 10篇 |
1999年 | 11篇 |
1998年 | 7篇 |
1997年 | 5篇 |
1996年 | 6篇 |
1995年 | 5篇 |
1994年 | 4篇 |
1993年 | 1篇 |
1992年 | 4篇 |
1991年 | 2篇 |
1990年 | 1篇 |
1989年 | 1篇 |
1988年 | 1篇 |
1987年 | 1篇 |
1986年 | 1篇 |
1983年 | 1篇 |
1982年 | 1篇 |
1980年 | 2篇 |
1979年 | 1篇 |
1977年 | 1篇 |
排序方式: 共有1024条查询结果,搜索用时 109 毫秒
351.
Alex Y. Lo 《Journal of Environmental Policy & Planning》2016,18(1):27-46
The changing political environment in Hong Kong is likely to accelerate the transition in environmental policy discourse. Opportunities for critical public involvement are increasing and new environmental discourses are emerging. Yet, previous social surveys did not explore the range of these discourses and few focused on climate change. The paper outlines the public discourses of climate change in Hong Kong. Using Q-methodology, four distinctive discourses were identified, namely Pure Environmentalism, Political Pragmatism, Popular Optimism, and Fair Rationalism. While the first one is climate-centric, the other three are political or social in nature and do not indicate a clear or coherent climate orientation. This suggests that the climate change concern of the Hong Kong public is not tightly embedded into a coherent narrative of social and institutional transformation. Effective climate change governance and policies require strengthening the link between such concern and the public desires for social and institutional transformation. Bringing together the ongoing social movements and environmental campaigns will be instrumental to nurture an active climate citizenry. 相似文献
352.
Shafaq Masud John Merson Daniel F. Robinson 《Journal of Environmental Planning and Management》2016,59(6):1126-1147
This paper looks into the complexity of managing flood risks in the Hawkesbury–Nepean catchment, Australia. Several aspects are explored: (1) the complexities created by the way different agencies are involved in assessing flood risks; (2) different perceptions on acceptable flood risk level; (3) community engagement in defining acceptable flood risk level; (4) views on a holistic flood risk management plan; and (5) challenges of a centralised information system. This study concludes that the complexity of managing a large catchment is exacerbated by the difference in the way professionals perceive the problem. This has led to (1) different standards for acceptable risks; (2) inconsistent attempt to set up a regional-scale flood management plan beyond the jurisdictional boundaries; (3) absence of a regional-scale agency with licence to share and update information; and (d) lack of forums for dialogue with insurance companies to ensure an integrated approach to flood management. 相似文献
353.
城市天然气加气站噪声影响分析及噪声控制技术简 总被引:1,自引:0,他引:1
城市天然气加气站位于城市道路和居民区周边。由于加气站地理位置特殊,声源复杂,与周边道路对环境的影响叠加,还要考虑通风散热等问题,噪声治理难度大。目前,国内关于城市天然气加气站的噪声控制研究的报道较少。本研究以合肥市长江西路天然气加气站为例,根据城市天然气加气站加气工艺噪声源及邻近交通噪声对周围环境进行叠加影响预测,根据预测结果和通风散热等工艺要求设计冷却塔安装进风、出风消声器和隔声罩,压缩机安装局部通风隔声罩及压缩机房东墙内安装隔声墙及通风隔声窗等措施。经检验,研究结果好于《工业企业厂界噪声排放标准(GB12348-2008)》中的2类标准的夜间50 dB(A)的标准。该研究设计技术工艺、参数先进合理,费用低且实际简单,为国内天然气加气站噪声预测及治理提供较好的示范作用。 相似文献
354.
Balancing urban growth and ecological conservation: A challenge for planning and governance in China
China has high biodiversity and is rapidly urbanizing. However, there is limited understanding of how urban expansion in the country is likely to affect its habitats and biodiversity. In this study, we examine urban expansion patterns and their likely impacts on biodiversity in China by 2030. Our analysis shows that most provinces are expected to experience urban expansion either near their protected areas or in biodiversity hotspots. In a few provinces such as Guangdong in the south, urban expansion is likely to impinge on both protected areas and biodiversity hotspots. We show that policies that could facilitate the integration of natural resource protection into urban planning exist on paper, but the prevailing incentives and institutional arrangements between the central and local governments prevent this kind of integration. Removing these obstacles will be necessary in order to safeguard the country’s rich biodiversity in light of the scale of urbanization underway. 相似文献
355.
Andreas Duit 《环境政策》2016,25(1):69-91
The primary task for the environmental state is to address problems related to the market’s externalisation of environmental costs. It has four main resources at its disposal: regulation, redistribution, organisation, and knowledge generation. The way these four resources are deployed make up a state’s environmental governance arrangements. Using data on environmental regulation, taxes, public administrations, and knowledge production from 28 countries, and a hierarchical cluster analysis, four different types of environmental states are identified: established, emerging, partial, and weak. This is followed by some suggestions for further research on the environmental state in a comparative perspective. 相似文献
356.
Marine Elbakidze Thomas Hahn Volker Mauerhofer Per Angelstam Robert Axelsson 《Ambio》2013,42(2):174-187
The Biosphere Reserve (BR) concept aims at encouraging sustainable development (SD) towards sustainability on the ground by promoting three core functions: conservation, development, and logistic support. Sweden and Ukraine exemplify the diverse governance contexts that BRs need to cope with. We assessed how the BR concept and its core functions are captured in national legislations. The results show that the core functions are in different ways reflected in legal documents in both countries. While in Ukraine the BR concept is incorporated into legislation, in Sweden the concept is used as a soft law. In Ukraine managers desired stronger legal enforcement, while in Sweden managers avoided emphasis on legislation when collaborating with local stakeholders. Hence, BR implementation have adapted to different political cultures by development of diverse approaches. We conclude that a stronger legal support might not be needed for BRs, rather SD needs to be recognized as an integrated place-based process at multiple levels. 相似文献
357.
长江新滩滑坡的历史分析,趋势预测与启示 总被引:10,自引:0,他引:10
从对新滩滑坡的历史回顾分析入手,得出新滩滑坡具有时空上的周期性和继承性规律。着重阐述了1985年6月12日新滩滑坡的形成过程,分析了其机理和形成原因,并由此得出对三峡库区滑坡灾害在治理上的重要启示。 相似文献
358.
简述了上海市环境监测中心在LIMS系统建设中针对环境监测实验室信息管理、项目管理的实际,进行系统静态数据的设置、人员的培训、系统优化、系统维护和新功能添加等建设,并根据应用中出现的问题对系统设置优化调整,使之更加符合环境监测发展的要求。 相似文献
359.
This article examines the sustainability of the Grain for Green Project in the Wolong Nature Reserve. Pertinent data were
collected through a questionnaire survey and a spatial analysis of reforested lands. The study results identified four critical
issues that may influence the sustainability of the project in the study area. The first issue is concerned with the project’s
impacts on local sustenance. Because local grain consumption depends greatly on compensation awarded by the project, the potential
for sustainability of the project is compromised. The second issue is that the project causes negative effects on local incomes
in the Wolong Nature Reserve, which may undermine local economic prospects. The third issue is that the project failed to
deliver suitable habitat for the giant panda, although two of the suitability requirements that deal with landform features
were met. Lastly, the project neglects great differences among geographical areas in the country, providing the same compensation
and length of compensation period to all participants. Appropriate compensation mechanisms should be established and adapted
to local economic, environmental, and social conditions. In managing nature reserves and moving toward sustainability, ensuring
all aspects of local socioeconomic and ecological/environmental issues are properly addressed is a real challenge. Based on
our study, some recommendations for improving sustainability of the project are given. 相似文献
360.
西气东输工程靖边至宁陕界沙地生态环境保护对策 总被引:1,自引:0,他引:1
靖边至宁陕界的西气东输工程段属于毛乌素沙地南缘与陕北黄土高原北缘的过渡地带,项目区生态环境状况不稳定。一旦沙地植被遭到破坏,风吹蚀与沙搬运的荒漠化过程就会迅速发生,从而形成流沙使生态系统退化或破坏。在详细介绍了沙地特征和生态环境特点的基础上,提出了相应的荒漠化防治和治理措施,以将项目区的生态尽可能恢复成原状或将其不良影响降到最低。 相似文献