全文获取类型
收费全文 | 558篇 |
免费 | 24篇 |
国内免费 | 9篇 |
专业分类
安全科学 | 139篇 |
废物处理 | 8篇 |
环保管理 | 191篇 |
综合类 | 160篇 |
基础理论 | 15篇 |
污染及防治 | 22篇 |
评价与监测 | 24篇 |
社会与环境 | 28篇 |
灾害及防治 | 4篇 |
出版年
2024年 | 1篇 |
2023年 | 4篇 |
2022年 | 15篇 |
2021年 | 19篇 |
2020年 | 31篇 |
2019年 | 9篇 |
2018年 | 5篇 |
2017年 | 6篇 |
2016年 | 16篇 |
2015年 | 18篇 |
2014年 | 31篇 |
2013年 | 38篇 |
2012年 | 40篇 |
2011年 | 47篇 |
2010年 | 33篇 |
2009年 | 33篇 |
2008年 | 33篇 |
2007年 | 43篇 |
2006年 | 24篇 |
2005年 | 26篇 |
2004年 | 11篇 |
2003年 | 12篇 |
2002年 | 5篇 |
2001年 | 10篇 |
2000年 | 16篇 |
1999年 | 7篇 |
1998年 | 10篇 |
1997年 | 6篇 |
1996年 | 6篇 |
1995年 | 6篇 |
1994年 | 3篇 |
1993年 | 2篇 |
1992年 | 2篇 |
1991年 | 1篇 |
1990年 | 4篇 |
1987年 | 5篇 |
1986年 | 3篇 |
1985年 | 2篇 |
1984年 | 4篇 |
1983年 | 3篇 |
1982年 | 1篇 |
排序方式: 共有591条查询结果,搜索用时 15 毫秒
61.
作为国家应急预案体系的重要组成部分,生产经营单位应结合本单位的实际情况编制安全生产事故应急预案并形成体系,互相衔接。本文分析了应急预案相互衔接的重要性及其要求,按照常态和非常态两种模式提出了应急预案相互衔接的方式,可以供生产经营单位编制安全生产事故应急预案时参考。 相似文献
62.
Gladys Mutangadura 《Natural resources forum》2007,31(3):176-187
The study presented in this article used a combination of key informant interviews and a review and synthesis of existing country level literature to identify the major sources of land tenure insecurity in six Southern African countries: Botswana, Lesotho, Malawi, Mozambique, South Africa, and Zambia. Findings reveal that the main causes of land tenure insecurity experienced in Southern Africa include lack of land rights of minority groups, unclear or overlapping land rights, overcrowding, land alienation into leasehold, insecurity of farm workers and farm labour tenants, inappropriate and exploitative administrative practices, land encroachment and illegal settlers and limited women's land rights. The article presents a summary of land tenure security related initiatives that the study countries have or are in the process of adopting. Analysis of these initiatives shows that tenure reforms have focused on changing the law and rules but little has been done to translate new laws into implementable programs; capacity building; prioritization of resources to support tenure reform; provision of complementary policies and incentives; addressing HIV/AIDS‐land tenure related problems; and monitoring and evaluation. The paper contends that these policy issues should be addressed in order to ensure realization of land tenure security for all. 相似文献
63.
Pascal C. Sanginga Colletah A. Chitsike Jemimah Njuki Susan Kaaria Rogers Kanzikwera 《Natural resources forum》2007,31(4):273-285
Despite increasing interest and support for multi‐stakeholder partnerships, empirical applications of participatory evaluation approaches to enhance learning from partnerships are either uncommon or undocumented. This paper draws lessons on the use of participatory self‐reflective approaches that facilitate structured learning on processes and outcomes of partnerships. Such practice is important to building partnerships, because it helps partners understand how they can develop more collaborative and responsive ways of managing partnerships. The paper is based on experience with the Enabling Rural Innovation (ERI) in Africa programme. Results highlight the dynamic process of partnership formation and the key elements that contribute to success. These include: (i) shared vision and complementarity, (ii) consistent support from senior leadership; (iii) evidence of institutional and individual benefits; (iv) investments in human and social capital; (v) joint resources mobilization. However, key challenges require coping with high staff turnover and over‐commitment, conflicting personalities and institutional differences, high transaction costs, and sustaining partnerships with the private business sector. The paper suggests that institutionalizing multi‐stakeholder partnerships requires participatory reflective practices that help structure and enhance learning, and incrementally help in building the capacity of research and development organisations to partner better and ultimately to innovate. 相似文献
64.
刘爱香 《中国环境管理干部学院学报》2007,17(4):35-37
通过对钢铁行业消耗水资源及产生污染情况进行分析,阐述了目前钢铁行业为节能减排而采取的管理、技术、污染治理措施,以达到减少废水外排量、降低污染物浓度、降低新水消耗的目的,对钢铁行业废水回用中尚存和潜在的工艺、设计问题进行了讨论,同时提出了通过清洁生产、优化工艺结构来解决问题的措施和建议,确立了企业近期和长期的节能减排任务目标。 相似文献
65.
This paper contributes to on-going attempts at bringing together two influential ideas in water governance: Integrated Water Resource Management (IWRM) and adaptive governance. In particular, a tension remains between the call in IWRM for the use of formal institutions, such as river basin organisations, to secure public policy integration, and the assumptions in adaptive governance in favour of informal collaboration between essentially independent policy actors. To clarify this relationship, this article draws on theoretical research on public policy integration, and uses these insights in an empirical setting to identify mechanisms that can facilitate effective policy integration for adaptive water governance. The research is based on recent attempts in Scotland to implement IWRM ideas to improve flood management. Several governance mechanisms were adopted to facilitate the integration of flood, water and rural land use policies. Six Scottish policy regimes are analysed using documentary sources and interviews. Results challenge the idea that collaboration should primarily be built on either river basin organisations or informal mechanisms. We identify a mix of informal and statutory-based mechanisms which may secure political and technocratic commitment to policy integration. 相似文献
66.
The success or failure of rural water services in the developing world is a result of numerous factors that interact in a complex set of connections that are difficult to separate and identify. This research effort presented a novel means to empirically reveal the systemic interactions of factors that influence rural water service sustainability in the municipalities of Darío and Terrabona, Nicaragua. To accomplish this, the study employed graphical modeling to build and analyze factor networks. Influential factors were first identified by qualitatively and quantitatively analyzing transcribed interviews from community water committee members. Factor influences were then inferred by graphical modeling to create factor network diagrams that revealed the direct and indirect interaction of factors. Finally, network analysis measures were used to identify “impact factors” based on their relative influence within each factor network. Findings from this study elucidated the systematic nature of such factor interactions in both Darío and Terrabona, and highlighted key areas for programmatic impact on water service sustainability for both municipalities. Specifically, in Darío, the impact areas related to the current importance of water service management by community water committees, while in Terrabona, the impact areas related to the current importance of finances, viable water sources, and community capacity building by external support. Overall, this study presents a rigorous and useful means to identify impact factors as a way to facilitate the thoughtful planning and evaluation of sustainable rural water services in Nicaragua and beyond. 相似文献
67.
68.
69.
石油化工企业环境风险分级评价指标体系研究 总被引:3,自引:0,他引:3
在现有研究基础上,从石化行业环境风险特点与现状着手,针对现有环境风险分级评价体系无法适应我国当前石化行业环境风险现状这一问题,对石化企业环境风险要素进行了梳理和分析.以此为基础从突发性环境风险、非突发性环境风险和选址敏感性三方面入手选取了石化企业环境风险分级评价指标,对各指标的含义及量化方法进行了分析,构建了石化企业环境风险分级评价指标体系.利用层次分析法确定体系指标权重,利用专家评分法对评价指标进行赋分,能够准确反映石化企业环境风险的实际情况.以天津滨海新区某石油化工企业为案例,验证了评价指标体系的有效性. 相似文献
70.
Manuel Pedro Rodríguez Bolívar Raquel Garde Sánchez Antonio M. López Hernández 《Journal of Environmental Planning and Management》2015,58(5):777-801
Corporate social responsibility (CSR) is increasingly required not only of private sector companies, but also of state-owned enterprises (SOEs), whose main function is to provide services to society and not principally to obtain financial reward. The important role played by managers in implementing CSR has been demonstrated by prior research. The objective of this paper is to examine how managers of SOEs perceive the concept of CSR, the reasons for their involvement and how it is integrated into everyday business practices. In addition, we examine whether managers' attitudes towards CSR policies are influenced by their personal profiles and by the sector in which the SOEs work. We find that, although these managers are aware of the importance of the CSR principles underlying their activities and understand the meaning, scope and dimensions of CSR, there remains an evident need to enhance the application of CSR policies among the strategies of SOEs. The manager profile and the sector in which the SOEs work both have a strong influence on their behaviour regarding CSR issues. 相似文献