全文获取类型
收费全文 | 106篇 |
免费 | 3篇 |
专业分类
安全科学 | 5篇 |
废物处理 | 2篇 |
环保管理 | 49篇 |
综合类 | 21篇 |
基础理论 | 7篇 |
环境理论 | 1篇 |
污染及防治 | 12篇 |
评价与监测 | 4篇 |
社会与环境 | 5篇 |
灾害及防治 | 3篇 |
出版年
2023年 | 1篇 |
2022年 | 3篇 |
2021年 | 4篇 |
2019年 | 2篇 |
2017年 | 7篇 |
2016年 | 4篇 |
2015年 | 7篇 |
2014年 | 6篇 |
2013年 | 5篇 |
2012年 | 2篇 |
2011年 | 6篇 |
2010年 | 4篇 |
2009年 | 12篇 |
2008年 | 10篇 |
2007年 | 3篇 |
2006年 | 7篇 |
2005年 | 1篇 |
2004年 | 1篇 |
2003年 | 2篇 |
2002年 | 2篇 |
2001年 | 7篇 |
2000年 | 5篇 |
1999年 | 2篇 |
1997年 | 2篇 |
1996年 | 1篇 |
1992年 | 1篇 |
1991年 | 1篇 |
1987年 | 1篇 |
排序方式: 共有109条查询结果,搜索用时 15 毫秒
51.
地震应急通讯保障系统的设计与思考 总被引:2,自引:0,他引:2
以华东地震应急联动协作区地震应急演练为例,探讨了演练现场与指挥中心之间异地会商、现场音视频实况转播和测震波形实时显示的主要通讯实现方法;通过比较试验,确定采用WiMAX无线通讯方式传输现场本地数据、采用编解码器传输音视频信号时,双向视频传输需使用2对编解码器,但1对编解码器上就能完全实现异地音频的互通,AV-1600e型编解码器在地震系统目前的卫星应急通讯信道下采用600 kpbs的视频编码率,能提供相对稳定的画面。实践表明,WiMAX无线通讯能较好地扩大野外本地网络通讯半径,编解码器能实现异地音视频互通,但对信道要求较高,效果较难保证。 相似文献
52.
Significant challenges remain in the ability to estimate habitat change under the combined effects of natural variability, climate change, and human activity. We examined anticipated effects on shallow water over low‐sloped beaches to these combined effects in the lower Willamette River, Oregon, an area highly altered by development. A proposal to stabilize some shoreline with large rocks (riprap) would alter shallow water areas, an important habitat for threatened Chinook salmon (Oncorhynchus tshawytscha), and would be subject to U.S. Endangered Species Act‐mandated oversight. In the mainstem, subyearling Chinook salmon appear to preferentially occupy these areas, which fluctuate with river stages. We estimated effects with a geospatial model and projections of future river flows. Recent (1999–2009) median river stages during peak subyearling occupancy (April–June) maximized beach shallow water area in the lower mainstem. Upstream shallow water area was maximized at lower river stages than have occurred recently. Higher river stages in April–June, resulting from increased flows predicted for the 2080s, decreased beach shallow water area 17–32%. On the basis of projected 2080s flows, more than 15% of beach shallow water area was displaced by the riprap. Beach shallow water area lost to riprap represented up to 1.6% of the total from the mouth to 12.9 km upstream. Reductions in shallow water area could restrict salmon feeding, resting, and refuge from predators and potentially reduce opportunities for the expression of the full range of life‐history strategies. Although climate change analyses provided useful information, detailed analyses are prohibitive at the project scale for the multitude of small projects reviewed annually. The benefits of our approach to resource managers include a wider geographic context for reviewing similar small projects in concert with climate change, an approach to analyze cumulative effects of similar actions, and estimation of the actions’ long‐term effects. Efectos Combinados del Cambio Climático y la Estabilización de Bordes de Ríos Hábitats de Aguas Poco Profundas del Salmón Chinook 相似文献
53.
《Environmental Hazards》2013,12(3):301-318
This review paper takes a case study approach to critically discuss how regeneration in the coastal resort of Porthcawl, South Wales has integrated flood defences as part of a strategic spatial planning and integrated policy coupling approach to the redesign of the town's seaside, promenade and harbour quarter. This planned initiative is part of a concerted effort to upgrade the town's waterfront and enable regeneration of a small seaside resort. From a resort cycle perspective, Porthcawl's perceived vulnerability to changing economic fortunes has prompted a master planning approach which is intended to bring together a mixed-use development programme with particular attention to urban design, strategic environmental assessment and public consultation. In different ways, this process has sought to raise public awareness of the issues and risks associated with the town's coastal location and to integrate flood defence aspects within the strategic regeneration plan as part of a greater sensitivity to climatic risks and potential flooding. This paper examines the adaptive capacity of coastal communities and the complex of socio-economic and spatio-temporal perspectives that shape policy developments in the planning, development and proactive management of coastal environments. The paper identifies the need to accommodate a new civic awareness of potential environmental hazards in articulating the public interest and balancing the trade-offs involved. 相似文献
54.
《Process Safety and Environmental Protection》2014,92(6):687-701
Large infrastructure projects such as new roads, railways and nuclear plants have often suffered from public opposition, causing significant delays and costs. In many cases poor engagement between the supporters of construction and the public have contributed to this. Therefore, this paper proposes a novel design framework with the aim of improving public engagement at an early design stage. Following a modified quality function deployment (QFD) process, it enables incorporation of public preferences into the design process, thus helping to improve the social acceptability of large infrastructure projects and reduce costs related to opposition and delays. The application of the framework is illustrated by a case study related to design of nuclear power plants. 相似文献
55.
Poncelet EC 《Environmental management》2001,27(1):13-25
Multistakeholder collaboration in the environmental realm has been increasing steadily over the past decade. This trend is
responding to several stimuli, including dissatisfaction with current regulatory regimes, a liberal economic climate emphasizing
global competitiveness and short-term returns, and the growing roles of the business and nongovernmental organization sectors
in the environmental policy arena. This paper grows out of ethnographic research conducted between 1994 and 1998 with four
environmental partnerships in Europe and the United States. The research found all of these partnerships to be marked by practices
of conflict minimization and diffusion. Drawing upon illustrative data from one of these case studies, a European Union level
initiative aimed at enabling sustainable development in Europe, the paper asks why this was the case, especially given the
diverse political and economic interests at stake and the history of contentious relations between the sectors in other venues.
Employing a theoretical perspective highlighting the sociohistoric factors involved in these processes, the paper suggests
that this proclivity toward nonconfrontational behavior stems in part from two sources: a prominent cultural model that conceptualizes
the partnership process as fundamentally nonconflictual in nature, and the promotion of the discourse of ecological modernization
over other competing discourses. The paper explores some of the implications of this finding and concludes that environmental
partnerships characterized by such nonconfrontational practices risk inadvertently encouraging the delegitimization of conflictual
approaches to environmental action and engendering a retreat from radical thinking and innovative environmental solutions. 相似文献
56.
Environmental Reporting by the Fortune 50 Firms 总被引:1,自引:0,他引:1
/ The extent and use of industry-reported environmental data are increasing, warranting an in-depth analysis of this information. This paper reviews the environmental reporting guidelines issued by several business and nonprofit organizations and evaluates the environmental reports published by the Fortune 50 companies, half of which publish reports. After describing the history of environmental reporting and the content of the guidelines, a comparative evaluation is made to indicate the types of companies producing reports, the topics reported, the intended audiences, the scope and depth of the material reported, and the effectiveness of the reports as communication devices. These reports are mechanisms to enhance a firm's image, public relations, and marketing and are aimed largely at concerned individuals, affected communities, and investors. Significant differences in the content and the depth of reports are seen as firms report on topics that are perceived by the public as high risks. The most complete reports are published by industries with poor or controversial public images, e.g., the chemical and timber industries. Still, no report provided information that was sufficient for comprehensive or comparative analyses of environmental performance. Recommendations are provided to increase the quality and effectiveness of environmental reporting.KEY WORDS: Communication; Environmental management; Performance reporting; Reporting; Stakeholder 相似文献
57.
Climis A. Davos 《Journal of Coastal Conservation》1999,5(2):171-180
Coastal management is a collective action. As such, it depends for its effective implementation on the cooperation of a multitude
of stakeholders, i.e. civic organizations, economic interest groups, environmental groups, governmental agencies, scientists
and other individuals. Where ‘effective implementation’ implies the achievement of targeted objectives within targeted time
horizons and ‘cooperation’ connotes that stakeholders elect to pursue cooperative strategies that may yield higher gains for
all stakeholders instead of competitive strategies that may maximize individual benefits. Thus, the fundamental challenge
of Coastal Zone Management (CZM) is to maximize the effectiveness of this management by maximizing and sustaining stakeholder
cooperation. I submit that sustainable cooperation can be maximized and nurtured for its voluntariness only by a process-oriented,
cooperative CZM. The alternative, outcome-oriented, normative CZM can force, directly or indirectly, cooperation but it cannot
sustain it. My purpose in this paper, is to highlight arguments supporting this view as well as the analytical challenges
of cooperative ICZM. Certain points are also viewed in the light of preliminary findings of a research project designed to
probe these challenges. 相似文献
58.
生态环境损害赔偿磋商从试点到全国推行,其地位愈加重要。当前,对于生态环境损害赔偿磋商的性质有颇多争议,其性质决定了是否需要第三力以及需要何种第三力,而在公法说、私法说、双阶构造说、三阶进阶说之上构建的生态环境损害赔偿磋商虽不相同,但建立磋商监督制度与磋商共同参与制度是其共同指向的完善路径,即检察院可作为第三力监督、参与磋商全过程。横向比较各省份对于检察院参与生态环境损害赔偿磋商的立法规定,总体看来检察院在此制度中地位不明、存在边缘化倾向,而实践中检察院具有协调跨区域磋商与促进赔偿义务之履行的作用,且生态环境损害赔偿磋商法律体系为检察院的监督与参与预留了空间,检察院可以法律监督者、公益代表者、社会治理者的身份参与,三种角色在不同阶段相互补充。 相似文献
59.
Golet GH Roberts MD Larsen EW Luster RA Unger R Werner G White GG 《Environmental management》2006,37(6):862-879
Studies have shown that ecological restoration projects are more likely to gain public support if they simultaneously increase important human services that natural resources provide to people. River restoration projects have the potential to influence many of the societal functions (e.g., flood control, water quality) that rivers provide, yet most projects fail to consider this in a comprehensive manner. Most river restoration projects also fail to take into account opportunities for revitalization of large-scale river processes, focusing instead on opportunities presented at individual parcels. In an effort to avoid these pitfalls while planning restoration of the Sacramento River, we conducted a set of coordinated studies to evaluate societal impacts of alternative restoration actions over a large geographic area. Our studies were designed to identify restoration actions that offer benefits to both society and the ecosystem and to meet the information needs of agency planning teams focusing on the area. We worked with local partners and public stakeholders to design and implement studies that assessed the effects of alternative restoration actions on flooding and erosion patterns, socioeconomics, cultural resources, and public access and recreation. We found that by explicitly and scientifically melding societal and ecosystem perspectives, it was possible to identify restoration actions that simultaneously improve both ecosystem health and the services (e.g., flood protection and recreation) that the Sacramento River and its floodplain provide to people. Further, we found that by directly engaging with local stakeholders to formulate, implement, and interpret the studies, we were able to develop a high level of trust that ultimately translated into widespread support for the project. 相似文献
60.
M. Pyhnen 《Safety Science》2000,35(1-3)
This paper describes two surveys that were carried out during the Policy for Sea Shipping Safety (POLSSS) project [Walker, 2000. POLSS: overview and cost-effectiveness analysis. Safety Science 35 (1–3, 105–121]. The first focused on the acceptability of risks. Its main goal was to find out how stakeholder groups accept different risks involved in maritime transport. The respondents were asked about their acceptance of the current risks and situations where the risks are either increased or decreased. The second survey examined the non-risk-related acceptability of different policy measures — both those being used currently, and those being considered in the POLSSS project for future implementation. 相似文献