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   980篇
  免费   119篇
  国内免费   17篇
安全科学   144篇
废物处理   6篇
环保管理   322篇
综合类   144篇
基础理论   174篇
环境理论   14篇
污染及防治   7篇
评价与监测   19篇
社会与环境   168篇
灾害及防治   118篇
  2024年   4篇
  2023年   20篇
  2022年   28篇
  2021年   37篇
  2020年   42篇
  2019年   67篇
  2018年   65篇
  2017年   77篇
  2016年   70篇
  2015年   43篇
  2014年   40篇
  2013年   116篇
  2012年   55篇
  2011年   52篇
  2010年   37篇
  2009年   34篇
  2008年   33篇
  2007年   28篇
  2006年   36篇
  2005年   29篇
  2004年   23篇
  2003年   15篇
  2002年   21篇
  2001年   16篇
  2000年   16篇
  1999年   20篇
  1998年   12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1116条查询结果,搜索用时 953 毫秒
691.
Abstract

This methodological paper draws on research from Australia to examine the question of gaining access to local governments in undertaking work on natural resource management. It is argued that a range of macro-level changes have impacted on the local government sector in Australia, and these changes have rendered access problematic for researchers. These changes include an expansion of local government roles, an increase in financial pressure within the sector, a proliferation of audit measures across local governments and a low level of respect amongst local government personnel for academics and academic work. The paper concludes by identifying the reasons why understanding access in qualitative research on local government and environmental sustainability is important.  相似文献   
692.
扶贫网络研究有助于解构扶贫资源的跨区域配置方式,挖掘扶贫要素的空间适配机制,对于巩固拓展脱贫攻坚成果同乡村振兴有效衔接有一定借鉴意义。基于上市公司精准扶贫数据构建了区域间的扶贫关联网络,运用社会网络分析法及地理加权回归(GWR)模型分析了多尺度扶贫网络格局、网络结构及其减贫效应,得到结论如下:(1)多尺度视角下的网络格局的空间异质性明显,企业的扶贫行为趋于空间邻近区域,空间指向性较强,城市间的精准扶贫关联网络呈现由“少核互联”的较稀疏网络向“多核交织”的密集型网络演进。地理距离对企业扶贫的约束仍然存在,但约束性逐渐降低。(2)扶贫关联网络复杂度不断强化,净溢出、经纪人、净受益和双向溢出四个板块间的溢出效应明显。(3)扶贫关联网络中扶贫多元化提升、区域连接数增加、区域联系强度增强及区域节点中介性提升对产业扶贫效应的发挥具有促进作用。  相似文献   
693.
Resilience thinking has developed separately in the bodies of literature on social-ecological systems, and that published principally within developmental psychology and mental health on the resilience of individuals. This paper explores what these bodies of literature might learn from the other towards a more integrated and enriched understanding of both social-ecological systems and social resilience. The psychology-based literature recognises a strong set of factors that enhance the strengths of individuals and communities, but lacks a sophisticated integration of the physical environmental context. The social-ecological systems literature offers an excellent foundation in complex adaptive systems, but tends to superimpose ecological concepts of system function onto the human domain, and needs to include an array of core social science concepts that are important to a full understanding of social-ecological systems. An example on north eastern Australia suggests how a converged understanding of social resilience could assist managers to acknowledge, enhance and foster social resilience in linked social-ecological systems.  相似文献   
694.
British colonial military heritage structures in Hong Kong are in a state of ruin and government neglect. Urgent attention is required in the form of active management to avoid the loss of valuable heritage resources and the negative impact on the landscape and environment. This paper explores two possible alternatives – user participation and social entrepreneur participation – to achieve innovative solutions to rent dissipation of these structures situated in isolated areas within protected-area boundaries, with a focus on a specific case. Emphasis is placed on fostering public participation, involving the allocation of some property rights. Elinor Ostrom's diagnostic approach to common-pool resource problems is applied to both solutions to determine the conditions necessary to achieve the objectives. The discussions are informed by social entrepreneurship principles and a version of the Coase Theorem, the latter coinciding with Ostrom's view regarding the role of property rights in achieving sustainable outcomes.  相似文献   
695.
Leaders' perceptions of their teams are critical sources of contextual social information influencing leadership behaviors. In this paper, we extend affect-as-social-information theory to understand how and why team helping behaviors predict leaders' mistreatment of their teams in the form of abusive supervision and positive leader behavior in the form of empowering leadership, both through leaders' perceptions of team positive affective tone. In addition, based on social information processing, we examine the cue of leaders' perceptions of team task performance as a factor that helps us understand when the relationship between positive affective tone and leadership behaviors may be attenuated. In two text-based scenario studies, a video-based scenario study, and a multisource field study, we found evidence that team helping behavior is antecedent to abusive and empowering leadership behaviors and that this relationship is fully mediated by leaders' perceptions of team positive affective tone. Moreover, our results support team task performance as a factor that decreases the degree to which affective tone is related to abusive supervision. We discuss our findings as a caution to scholars' assumptions about the directionality of leader-team influence, emphasizing the need to acknowledge upward effects in workplace mistreatment research in the leader–team relationship.  相似文献   
696.
《组织行为杂志》2017,38(4):537-557
Past research suggests that interactional justice plays a pivotal role in facilitating high‐quality leader–member exchange (LMX), with downstream implications for employee performance. However, the broader context in which these effects unfold has received scarce attention. Drawing from deontic justice and social exchange theories, we suggest that interactional justice differentiation is an important contextual moderator of the link between interactional justice and LMX. Specifically, we argue that high interactional justice differentiation attenuates the link between interactional justice and LMX, in turn influencing the effects of interactional justice on employee task and creative performance. Results from two studies employing both experimental and multisource, multilevel survey designs provide convergent support for the hypothesized model. We conclude by highlighting several key theoretical and practical implications of our findings. Copyright © 2016 John Wiley & Sons, Ltd.  相似文献   
697.
698.
Conservation goals at the start of the 21st century reflect a combination of contrasting ideas. Ideal nature is something that is historically intact but also futuristically flexible. Ideal nature is independent from humans, but also, because of the pervasiveness of human impacts, only able to reach expression through human management. These tensions emerge in current management rationales because scientists and managers are struggling to accommodate old and new scientific and cultural thinking, while also maintaining legal mandates from the past and commitments to preservation of individual species in particular places under the stresses of global change. Common management goals (such as integrity, wilderness, resilience), whether they are forward looking and focused on sustainability and change, or backward looking and focused on the persistence and restoration of historic states, tend to create essentialisms about how ecosystems should be. These essentialisms limit the options of managers to accommodate the dynamic, and often novel, response of ecosystems to global change. Essentialisms emerge because there is a tight conceptual coupling of place and historical species composition as an indicator of naturalness (e.g., normal, healthy, independent from humans). Given that change is increasingly the norm and ecosystems evolve in response, the focus on idealized ecosystem states is increasingly unwise and unattainable. To provide more open‐ended goals, we propose greater attention be paid to the characteristics of management intervention. We suggest that the way we interact with other species in management and the extent to which those interactions reflect the interactions among other biotic organisms, and also reflect our conservation virtues (e.g., humility, respect), influences our ability to cultivate naturalness on the landscape. We call this goal a natural practice (NP) and propose it as a framework for prioritizing and formulating how, when, and where to intervene in this period of rapid change. Desarrollo de una Práctica Natural para Adaptar Objetivos de Conservación al Cambio Global  相似文献   
699.
700.
How to create and adjust governing institutions so that they align (fit) with complex ecosystem processes and structures across scales is an issue of increasing concern in conservation. It is argued that lack of such social‐ecological fit makes governance and conservation difficult, yet progress in explicitly defining and rigorously testing what constitutes a good fit has been limited. We used a novel modeling approach and data from case studies of fishery and forest conservation to empirically test presumed relationships between conservation outcomes and certain patterns of alignment of social‐ecological interdependences. Our approach made it possible to analyze conservation outcome on a systems level while also providing information on how individual actors are positioned in the complex web of social‐ecological interdependencies. We found that when actors who shared resources were also socially linked, conservation at the level of the whole social‐ecological system was positively affected. When the scales at which individual actors used resources and the scale at which ecological resources were interconnected to other ecological resources were aligned through tightened feedback loops, conservation outcome was better than when they were not aligned. The analysis of individual actors’ positions in the web of social‐ecological interdependencies was helpful in understanding why a system has a certain level of social‐ecological fit. Results of analysis of positions showed that different actors contributed in very different ways to achieve a certain fit and revealed some underlying difference between the actors, for example in terms of actors’ varying rights to access and use different ecological resources. El Éxito de la Conservación como Función de una Buena Alineación de Estructuras y Procesos Sociales y Ecológicos  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