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排序方式: 共有1435条查询结果,搜索用时 15 毫秒
321.
Matthew W. Rees Josie Carwardine Andrew Reeson Jennifer Firn 《Conservation biology》2020,34(4):843-853
Conservation strategies aimed at reducing threats to biodiversity can have significant implications for multiple sectors in a socioeconomic system, but these cobenefits are often poorly understood. For example, many of the threats to native species also impede agricultural production, yet agriculture is typically perceived as in competition with conservation objectives. Although a comprehensive, multiobjective decision analysis is usually beyond the scope and capacity of conservation decision makers, failing to incorporate key socioeconomic costs and benefits into conservation decision-making processes can result in missed opportunities for diversifying outcomes and creating cost-sharing multisectoral partnerships. We devised a straightforward and readily interpretable approach to incorporate cobenefits into a threat-management prioritization approach. We used it to analyze the agricultural cobenefits of implementing 9 invasive animal management strategies designed to ensure the persistence of 148 threatened species across Australia's Lake Eyre Basin over 50 years. A structured elicitation process with 24 participants (scientists, land managers, agriculturalists, and other stakeholders) was used to collect information on each strategy, including costs, technical and social feasibility, benefits to native threatened species, and cobenefits to agricultural production systems. The costs of targeted invasive animal management to save threatened species across the basin (AU$33 million/year) outweighed the overall benefits to the agricultural industry (estimated AU$226 million/year). The return on investment for these management strategies varied substantially when agricultural cobenefits were considered alongside threatened species benefits and showed synergies and challenges. Our approach demonstrates the value of incorporating cobenefits of conservation actions into cost-effectiveness analyses to guide potential investment and partnerships and to diversify implementation pathways. 相似文献
322.
《Process Safety and Environmental Protection》2014,92(6):789-795
Human errors during operation and the resulting increase in operational risk are major concerns for nuclear reactors, just as they are for all industries. Additionally, human reliability analysis together with probabilistic risk analysis is a key element in reducing operational risk. The purpose of this paper is to analyze human reliability using appropriate methods for the probabilistic representation and calculation of human error to be used alongside probabilistic risk analysis in order to reduce the operational risk of the reactor operation. We present a technique for human error rate prediction and standardized plant analysis risk. Human reliability methods have been utilized to quantify different categories of human errors, which have been applied extensively to nuclear power plants. The Tehran research reactor is selected here as a case study, and after consultation with reactor operators and engineers human errors have been identified and adequate performance shaping factors assigned in order to calculate accurate probabilities of human failure. 相似文献
323.
《Process Safety and Environmental Protection》2014,92(4):280-291
In 2013, the European Federation of Chemical Engineering (EFCE) celebrates its 60th anniversary. EFCE has continually promoted scientific collaboration and supported the work of engineers and scientists in thirty European countries. As for its mission statement, EFCE helps European Society to meet its needs through highlighting the role of Chemical Engineering in delivering sustainable processes and products. Within this organizational framework the Loss Prevention Symposium series, organized throughout Europe on behalf of the Loss Prevention Working Party of the EFCE, represents a fruitful tradition covering a time span of forty years. The tri-annual symposium gathers experts and scientists to seek technical improvements and scientific support for a growingly safer industry and quality of life. Following the loss prevention history in this paper, a time perspective on loss prevention and its future is presented. 相似文献
324.
福建海洋资源的开发利用 总被引:1,自引:0,他引:1
本文分析了福建省的海洋资源优势与开发现状,提出了海洋资源开发的指导思想与原则,探讨海洋产业的开发和空间布局 相似文献
325.
利用加速器质谱技术测定大气14CO2以示踪大气化石源CO2成为当前减污降碳工作的热点。该文从加速器质谱14C分析基础出发,系统介绍了加速器质谱的工作原理、大气样品的采集及纯化、石墨化样品的制备和测定,阐述了大气碳监测领域14 CO2测试的研究进展。随着加速器质谱技术的不断发展,大气14CO2的研究将会更加广泛和深入,有助于进一步认识大气化石源CO2的来源,更有针对性地开展减污降碳工作。未来应统一制定14CO2监测方法标准,规范操作流程和质控手段,完善实验仪器配套设施,加快提升监测能力和水平。 相似文献
326.
Allan Curtis Ian Byron Jacinta MacKay 《Journal of the American Water Resources Association》2005,41(3):549-563
ABSTRACT: Watersheds are widely accepted as a useful geography for organizing natural resource management in Australia and the United States. It is assumed that effective action needs to be underpinned by an understanding of the interactions between people and the environment. While there has been some social research as part of watershed planning, there have been few attempts to integrate socio‐economic and biophysical data to improve the efficacy of watershed management. This paper explores that topic. With limited resources for social research, watershed partners in Australia chose to focus on gathering spatially referenced socio‐economic data using a mail survey to private landholders that would enable them to identify and refine priority issues, develop and improve communication with private landholders, choose policy options to accomplish watershed targets, and evaluate the achievement of intermediate watershed plan objectives. Experience with seven large watershed projects provides considerable insight about the needs of watershed planners, how to effectively engage them, and how to collect and integrate social data as part of watershed management. 相似文献
327.
328.
随着脱硫装置的大量投运,燃煤硫分、运行人员操作水平、检修人员技术能力都直接影响着脱硫系统的安全性和经济性。结合钱电公司的运行实际,当燃煤硫分和负荷的变化,原烟气的SO2浓度低于2300mg/m3,采用2泵运行;SO2浓度超过2300mg/m3时,采用3泵运行,脱硫效率均能达到设计要求。为此,降低脱硫系统入口SO2浓度是提高优化运行的关键。脱硫系统在线仪表的准确性和数据的有效性,直接关系到脱硫系统的考核和脱硫电价的补助,对脱硫系统的安全、经济运行起到至关重要的作用。 相似文献
329.
本文综述了湿地甲烷排放的研究进展,包括湿地甲烷排放的研究方法、时空变化、排放机制、影响因素以及主要湿地类型排放通量,并指出了今后研究方向及应注意的问题。 相似文献
330.
Angela M. Bayer Heather E. Danysh Mijail Garvich Guillermo Gonzálvez William Checkley María Álvarez Robert H. Gilman 《Disasters》2014,38(2):351-374
During the 1997–98 El Niño, Tumbes, Peru received 16 times the annual average rainfall. This study explores how Tumbes residents perceived the impact of the El Niño event on basic necessities, transport, health care, jobs and migration. Forty‐five individuals from five rural communities, some of which were isolated from the rest of Tumbes during the event, participated in five focus groups; six of these individuals constructed nutrition diaries. When asked about events in the past 20 years, participants identified the 1997–98 El Niño as a major negative event. The El Niño disaster situation induced a decrease in access to transport and health care and the rise in infectious diseases was swiftly contained. Residents needed more time to rebuild housing; recover agriculture, livestock and income stability; and return to eating sufficient animal protein. Although large‐scale assistance minimized effects of the disaster, residents needed more support. Residents' perspectives on their risk of flooding should be considered in generating effective assistance policies and programmes. 相似文献