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   949篇
  免费   116篇
  国内免费   17篇
安全科学   139篇
废物处理   5篇
环保管理   312篇
综合类   141篇
基础理论   166篇
环境理论   14篇
污染及防治   6篇
评价与监测   17篇
社会与环境   165篇
灾害及防治   117篇
  2024年   3篇
  2023年   20篇
  2022年   26篇
  2021年   35篇
  2020年   42篇
  2019年   66篇
  2018年   63篇
  2017年   75篇
  2016年   69篇
  2015年   42篇
  2014年   39篇
  2013年   113篇
  2012年   52篇
  2011年   48篇
  2010年   33篇
  2009年   33篇
  2008年   33篇
  2007年   27篇
  2006年   35篇
  2005年   28篇
  2004年   23篇
  2003年   16篇
  2002年   21篇
  2001年   15篇
  2000年   15篇
  1999年   19篇
  1998年   11篇
  1997年   7篇
  1996年   4篇
  1995年   10篇
  1994年   2篇
  1993年   3篇
  1992年   4篇
  1991年   7篇
  1990年   2篇
  1989年   4篇
  1988年   2篇
  1983年   2篇
  1982年   2篇
  1981年   1篇
  1980年   3篇
  1979年   2篇
  1978年   2篇
  1977年   2篇
  1976年   1篇
  1974年   5篇
  1973年   5篇
  1972年   1篇
  1971年   6篇
  1970年   2篇
排序方式: 共有1082条查询结果,搜索用时 62 毫秒
251.
The escalating illegal wildlife trade (IWT) is one of the most high‐profile conservation challenges today. The crisis has attracted over US$350 million in donor and government funding in recent years, primarily directed at increased enforcement. There is growing recognition among practitioners and policy makers of the need to engage rural communities that neighbor or live with wildlife as key partners in tackling IWT. However, a framework to guide such community engagement is lacking. We developed a theory of change (ToC) to guide policy makers, donors, and practitioners in partnering with communities to combat IWT. We identified 4 pathways for community‐level actions: strengthen disincentives for illegal behavior, increase incentives for wildlife stewardship, decrease costs of living with wildlife, and support livelihoods that are not related to wildlife. To succeed the pathways, all require strengthening of enabling conditions, including capacity building, and of governance. Our ToC serves to guide actions to tackle IWT and to inform the evaluation of policies. Moreover, it can be used to foster dialogue among IWT stakeholders, from local communities to governments and international donors, to develop a more effective, holistic, and sustainable community‐based response to the IWT crisis.  相似文献   
252.
In this paper we examine and compare communication processes aimed at building social networks and increasing citizen engagement in two communities participating in a municipal sustainability planning (MSP) pilot programme in Alberta, Canada, initiated by the Alberta Urban Municipalities Association (AUMA). Data were gathered through qualitative semi-structured interviews and documentary review. In soliciting citizen engagement, each community utilised a variety of communication methods, based on available resources and on-going evaluation of community responses. In both cases, citizens developed a shared vision of a preferred future for their community, aided by a reconfiguration of their internal and external social networks. In addition to drawing upon and strengthening bonding relationships within the community, bridging relationships with external actors and agencies promoted knowledge mobilisation that aided in planning and transitioning towards sustainability. Both communities faced challenges as well, which the authors discuss in relation to the sustainability of MSP planning.  相似文献   
253.
The number and diversity of civil society or third sector sustainability organisations (TSSOs) have increased in recent decades. TSSOs play a prominent role in local approaches to sustainability. However, the contributions made by TSSOs are not fully understood, beyond a limited suite of quantifiable outputs and impacts. In this qualitative study, we examine how four TSSOs from two Australian regions, Tasmania and Queensland's Sunshine Coast, contribute to social transformation beyond discrete outputs. We examine the operation, ethos, scope and influence of these organisations over time. In so doing, we identify three common ways in which these organisations facilitate social change: by (i) enhancing social connectivity through boundary work; (ii) mobilising participatory citizenship and (iii) contributing to social learning. We conclude that TSSOs contribute significantly to the systemic social conditions that enable change for sustainability and the development of community resilience and well-being, but do so in ways undervalued by existing metrics, formal evaluation processes and funding models. Clearer recognition of, and strategic emphasis on, these qualitative contributions to social transformation is vital in ensuring that TSSOs remain viable and effective over the long term.  相似文献   
254.
Abstract: Marine protected areas (MPAs) are a popular conservation strategy, but their impacts on human welfare are poorly understood. To inform future research and policy decisions, we reviewed the scientific literature to assess MPA impacts on five indicators of human welfare: food security, resource rights, employment, community organization, and income. Following MPA establishment, food security generally remained stable or increased in older and smaller MPAs. The ability of most fishing groups to govern MPA resources changed. Increased resource rights were positively correlated with MPA zoning and compliance with MPA regulations. Small sample sizes precluded statistical tests of the impacts of MPAs on employment, community organization, and income. Our results demonstrate that MPAs shape the social well‐being and political power of fishing communities; impacts (positive and negative) vary within and among social groups; and social impacts are correlated with some—but not all—commonly hypothesized explanatory factors. Accordingly, MPAs may represent a viable strategy for enhancing food security and empowering local communities, but current practices negatively affect at least a minority of fishers. To inform policy making, further research must better document and explain variation in the positive and negative social impacts of MPAs.  相似文献   
255.
The social and economic ramifications of marine conservation strategies such as marine protected areas (MPAs) are important to consider prior to their implementation to ensure that they do not exceed the resilience of resource-users and that resource protection might be maximised through compliance and low resistance. This paper presents a framework in which the human dimensions can be more easily and usefully integrated into the design and delivery of conservation initiatives. The framework espouses quantifying (1) the level of dependency on the resource; (2) perceptions towards conservation initiatives; and (3) social resilience. The framework is applied in Salum, Egypt, which is the site of a prospective MPA.  相似文献   
256.
Increasing recognition of the human dimensions of natural resource management issues, and of social and ecological sustainability and resilience as being inter-related, highlights the importance of applying social science to natural resource management decision-making. Moreover, a number of laws and regulations require natural resource management agencies to consider the “best available science” (BAS) when making decisions, including social science. Yet rarely do these laws and regulations define or identify standards for BAS, and those who have tried to fill the gap have done so from the standpoint of best available natural science. This paper proposes evaluative criteria for best available social science (BASS), explaining why a broader set of criteria than those used for natural science is needed. Although the natural and social sciences share many of the same evaluative criteria for BAS, they also exhibit some differences, especially where qualitative social science is concerned. Thus we argue that the evaluative criteria for BAS should expand to include those associated with diverse social science disciplines, particularly the qualitative social sciences. We provide one example from the USA of how a federal agency − the U.S. Forest Service − has attempted to incorporate BASS in responding to its BAS mandate associated with the national forest planning process, drawing on different types of scientific information and in light of these criteria. Greater attention to including BASS in natural resource management decision-making can contribute to better, more equitable, and more defensible management decisions and policies.  相似文献   
257.
为客观反映液化石油气灌(LPG)装站整体安全生产状况,用社会网络分析法研究灌装站安全评价标准。基于某市区域内100家LPG灌装站安全评价现场检查数据,借助UCINET软件对安全评价指标进行结点中心度、接近中心度和间距中心度分析,探究安全评价指标的重要度、紧密度以及控制、影响其他评价指标的程度,确定14项中心度较高的核心评价指标及其对应的灌装站的潜在安全隐患,并与实际统计数据进行了对比。结果表明,该方法分析结果与灌装站实际情况相符。  相似文献   
258.
Broad stakeholder involvement cannot be assumed in all environmental planning and management processes that have critical land use dimensions. This paper illustrates how concepts and techniques from social network analysis (SNA) can be used to examine and better understand the roles of one type of stakeholders, planners, in environmentally oriented planning and management processes led by other professions. Two cases of natural hazard mitigation planning led by emergency managers illustrate the usefulness of three SNA concepts of network structural characteristics in understanding how differences in planner involvement may influence incorporation of land use approaches in local natural hazard mitigation plans aimed at reducing long term risks from natural hazards.  相似文献   
259.
The impact of diverse composition in teams is neither straightforward nor direct, and evidence suggests that diversity can be either conducive or detrimental to team innovation. Professionally diverse healthcare teams are increasingly used to develop innovative clinical approaches and solve complex healthcare problems; however, there is evidence that collaboration across professional boundaries creates conflict and is frequently unsuccessful. Healthcare organizations consequently face a dilemma. If they embrace professional diversity in teams, they risk interprofessional hostility, but if they choose homogeneous teams, they diminish their teams' capacity to innovate. We respond to this quandary by utilizing social identity theory to better understand the mechanisms through which professional diversity can enhance team innovation. In particular, we argue that professional identity salience operates as a mediator capable of explaining both positive and negative outcomes of professional diversity, contingent on the moderating effect of openmindedness norms. Analysis of survey data from 70 healthcare teams supports our model and indicates that professional salience can both enhance and undermine team innovation, depending on the extent of team openmindedness. Copyright © 2015 John Wiley & Sons, Ltd.  相似文献   
260.
通过实地走访、资料查阅、问卷调查的方式,以北京城区东部某垃圾处理工程为研究案例,对中国生活垃圾处理在立项和运行阶段的公众参与和社会监督情况做全面的调查分析.调查结果显示,中国在生活垃圾处理的公众参与和监督方面总体上仍处于起步的初期阶段,公众对垃圾在处理处置方面的意愿体现程度仍有提高空间.同时,垃圾处理处置的信息披露需要进一步完善,在公开渠道和受众面上要更加广泛和及时.  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