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   645篇
  免费   111篇
  国内免费   7篇
安全科学   36篇
废物处理   2篇
环保管理   316篇
综合类   187篇
基础理论   58篇
环境理论   32篇
污染及防治   24篇
评价与监测   4篇
社会与环境   65篇
灾害及防治   39篇
  2024年   3篇
  2023年   16篇
  2022年   36篇
  2021年   55篇
  2020年   57篇
  2019年   62篇
  2018年   61篇
  2017年   83篇
  2016年   97篇
  2015年   63篇
  2014年   23篇
  2013年   69篇
  2012年   15篇
  2011年   25篇
  2010年   17篇
  2009年   14篇
  2008年   17篇
  2007年   9篇
  2006年   19篇
  2005年   8篇
  2004年   6篇
  2003年   3篇
  2002年   1篇
  2001年   1篇
  2000年   2篇
  1993年   1篇
排序方式: 共有763条查询结果,搜索用时 296 毫秒
611.
Local food systems and farmers' markets across the USA have experienced unprecedented growth and development in the past 20 years. While scholarship has examined participant demographics and motives for engaging in farmers' markets, few studies have considered the coupled nature of those attending the markets with institutional governance systems used for market coordination. This study examined participation in farmers' markets under the framework of high and low market governance systems, specifically considering the demographics, values for local foods, motives for attending farmers' markets, and outcomes of the experience based on the dichotomous governance classification. Governance was characterized using four attributes: market rules or policies, paid employee(s), a rule governing geography of food origin, and affiliation with an organisation or agency. Our results suggest that market governance may impact (1) which consumers attend the market, (2) motives among those who attend the market, and (3) satisfaction outcome levels among market participants. By better understanding how the emerging governance system impacts who ultimately attends the market (and the outcomes of the experience), agencies coordinating farmers' markets and market managers can ultimately improve the market's reach and experience with greater intentionality.  相似文献   
612.
In recent years, cities have been portrayed as important loci for transformations of large-scale systems. This paper contributes to scholarship on urban transitions by exploring why the boundaries, functions and challenges of large-scale systems typically are framed differently at the urban level of governance than at more aggregated levels of governance. Empirically, we examine the wastewater system in Denmark by contrasting framings at the urban and national levels over the last 20 years and the transition dynamics that emerged as a consequence of their juxtaposition. The findings illustrate that urban governance of the wastewater system was influenced by a particular concern with developing attractive and competitive urban spaces. The wastewater system emerged as a ‘place-bound’ and even ‘place-making’ governance concern; as such, the boundaries and functions of the system were subject to continuous redefinition at the city level. This urban framing conflicted with the national-level, efficiency-oriented framing of the wastewater system as homogenous, without regard to place-specific differences. The research findings suggest that a distinct characteristic of urban-level governance is concern for place-specific development; this concern can be transformative because it leads to ongoing reinterpretation of traditional boundaries and dependencies between large-scale systems and local contexts.  相似文献   
613.
Public deliberation is increasingly marshalled as a viable avenue for climate governance. Although climate change can be framed in multiple ways, it is widely assumed that the only relevant public meaning of climate change is that given by the natural sciences. Framing climate change as an inherently science-based public issue not only shields institutional power from scrutiny, but it can also foster an instrumental approach to public deliberation that can constrain imaginative engagement with present and future socio-environmental change. By fostering the normative value of pluralism as well as the substantive value of epistemic diversity, the interpretive social sciences and humanities can assist in opening up public deliberation on climate change such that alternative questions, neglected issues, marginalized perspectives and different possibilities can gain traction for policy purposes. Stakeholders of public deliberation are encouraged to reflect on the orchestration of the processes by which climate change is defined, solutions identified and political collectives convened.  相似文献   
614.
A key characteristic of global organic agriculture governance through standards is the coexistence of regulatory fragmentation and regional integration. To reduce barriers to organic trade, especially for market participants from developing countries, international and transnational entrepreneurs increasingly promote the setting of organic agriculture standards (OAS) in different world regions, for example, in East Africa, the Pacific, or Asia. Although scholars from different disciplines have done a lot of research on the role of standards in global governance, we still know little about why and how regional standard-setting processes evolve. Applying findings from regime analysis, entrepreneurship, and political authority, the article introduces the concept of authority pooling. It argues that legal, moral, and technical authority sources interact in a blurred functional division of labour between the public and the private sector in standard-setting. The article presents results from a within-case study of the development of the East African Organic Products Standard using the process-tracing method. It detects the underlying causal mechanism by which international and transnational entrepreneurs pooled different authority sources and, thus, significantly influenced political actors in East Africa to set the first regional OAS in the developing world.  相似文献   
615.
环境问题的根源在于人类的行为,引导个体实施环境友好行为是环境治理的基本思路。环境社会规范会对环境行为产生重要的影响,是环境治理的重要路径。本研究在阐述社会规范的种类及其作用机制的基础上,借鉴环境社会规范激活的相关理论,阐明环境社会规范激活的影响因素及环境社会规范作用于环境行为的基本机理,分析中国环境社会规范激活存在的障碍,提出政府通过促进环境社会规范的激活来治理环境所应当采取的措施。研究结论表明,整体环境社会规范的激活水平决定着环境社会规范对环境行为的作用力,其取决于相互影响的环境描述性规范、环境命令性规范、环境个人规范的激活水平以及外部约束条件。由于受到客观物质生活条件的制约,中国环境社会规范的激活存在一些障碍,导致环境社会规范激活处于较低的水平,这些主要的障碍包括环境消极描述性规范反向作用大、环境个人规范激活水平低和行为的成本、行为的技术障碍、行为的便利性等外部因素的制约突出。在此,提出的建议是政府相关部门可以采取积极措施,通过提高环境社会规范的激活水平来达到环境治理的目标。政府相关部门可通过描述性规范信息的传递提高环境描述性规范激活水平。环境宣传教育中通过生态价值观确立、环境污染行为不利后果的明确认知、环境不利后果避免的正确归因来提高环境个人规范的激活水平。通过降低遵守环境社会规范的难度和成本消除环境社会规范激活的外部制约因素。通过完善环境立法并强化环境法的实施可有效提高环境描述性规范、环境命令性规范、环境个人规范的激活水平,从而提高整体环境社会规范的激活水平。  相似文献   
616.
农村环境善治的逻辑重塑——基于利益相关者理论的分析   总被引:2,自引:0,他引:2  
农村环境污染问题是我国实现十八届五中全会倡导的五位一体重大战略的突出矛盾,也是学术界需要研究的核心问题之一。本研究利用利益相关者理论分析法,对我国农村环境治理失灵的内在机理进行理论解释,认为政府、企业、城市、村民、环保组织、科研院校等利益相关者的不同利益诉求和行为导向,造成了目前农村环境污染的现实困境。分析发现:正是政府层面重视经济发展,轻视监管职责;企业层面重视经济利润,轻视社会责任;农民层面重视生计诉求、轻视安全需求;城市层面突破政府管制,转嫁污染成本;环保组织力量资源有限,难以提供环保功能以及科研院校重视环保技术研发,轻视科技推广,才导致了现阶段农村环境污染愈演愈烈。因此,只有明确政府、企业、城市、村民、环保组织、科研院校等利益相关者的角色定位,充分发挥好各自的环保功能,真正构建起农村环境的共同治理体系,才能克服不同利益相关者之间的冲突和相互博弈状态,进而实现农村环境善治的目标。研究结论表明:农村环境善治的内涵体现为政治国家与公民社会的合作参与、共同治理乡村环境问题.其主要特征为合法性、透明性、责任性、回应性、有效性,其实质是在乡村环境治理中,构建起强国家和强社会的"双强"模式。通过构建这种"双强"模式使国家与社会在乡村环境治理中达成利益均衡共识,彼此协同合作,共同致力于乡村环境的善治之道,以此彻底改变现在的乡村污染面貌,最终实现十八届五中全会倡导的生态良好农村战略构想。  相似文献   
617.
基于多层次模糊综合评价方法提出了一种含大规模风电电网综合安全评估模型。首先研究了多层次模糊综合评价方法,在充分分析大规模风电注入功率对电网的影响后,综合考虑风电送出水平、电网静态安全性、暂态稳定性和运行经济性多个指标建立大规模风电注入功率对电网影响的评估模型;最后以甘肃酒泉大规模风电基地为实例,仿真分析大规模风电注入对电网的影响,提出适应该风电基地的模糊评价指标、隶属度函数和评语集,对大规模风电注入功率对电网影响的评估模型计算求解,量化评估该风电送出方案,验证了所提出的评估方法的可行性和有效性。  相似文献   
618.
This article examines the unfolding of integrated water resource management (IWRM) reforms in southwest Burkina Faso, where water resources are subject to conflicting claims by a diversity of users. We first describe the establishment a local water user committee, showing how choices regarding composition and operations grant varying levels of recognition to different stakeholders. We then discuss the implications for key dimensions of decentralized governance, namely representation and accountability. In particular we focus on: (a) how the interplay of political agendas and policy disconnects shapes the committee's viability and credibility and (b) how tensions between techno‐scientific and local knowledge affect participation and transparency. We argue that in contexts defined by contentious politics and neo‐patrimonial practices, representativeness is better ensured by the direct inclusion of user groups rather than elected officials. Though limited discretionary power, information access, and technical capabilities of committee members inhibit accountability, rural producers uphold their claims through social mobilization and reliance on local knowledge. Recognizing the opportunities offered by the country's recent democratic turn, we formulate recommendations aimed at addressing structural drivers and enabling citizen agency in decentralized water governance. At the same time, further research is needed on local people's understandings of representation and accountability, to ensure that they are involved in institutional design and practices in ways that affirm what they value and what they know.  相似文献   
619.
This paper explores,explains and discusses issues around the dilemma between local conservation of natural resources(often,endangered species and habitats)and tourism needs in Africa.Often and in constitutional terms,local people have a right to exploit and use resources endowed in their local area.However,tourists often are interested in viewing the vegetation and animal resources undisturbed.Inevitably,there is an undeclared animosity of values and interests between local communities and tourists and state agencies.As a result,the dilemma is thus of governance.The purpose of this paper is to demonstrate the governance dilemma of resource utilization and tourism in Africa in a bid to create an informed stewardship framework for sustainability.This is achieved by way of case studies and narratives from Africa.As such,this paper will be a review literature on how different communities perceive tourism and derive livelihoods from their immediate environment.It also explains how the external factors influence local needs and interests.A more sustainable and operational framework that reduces friction among stakeholders is suggested.  相似文献   
620.
Two substantive bodies of research have developed in recent years, both of which have a focus upon local and regional scales. First, there has been the development of work on changing forms of local and regional governance. This has drawn on a range of theoretical perspectives, including notions of institutional capacity, urban regime theory and neo-regulationalist accounts. Second, a body of research has developed into environmental policy and sustainable development, but this has largely been normative and undertheorized. While these two bodies of literature have developed separately, we believe there is merit in bringing the insights from each together. A focus on local environmental policy helps to broaden our understanding of local governance and problems of after-Fordist regulation. Such a project also helps to illuminate problems in implementing policy on the environment and sustainability. The examination of changing local and regional forms of governance allows us to identify new state spaces, which may provide opportunities for the strategic insertion of environmental objectives into economic development policies. This paper seeks to theorize such environment–economy relations and emerging multi-scalar forms of environmental governance, drawing upon case study research work in six UK local authority areas. Copyright © 2002 John Wiley & Sons, Ltd.  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