Does the Social Capital in Networks of “Fish and Fire” Scientists and Managers Suggest Learning?     

A. Paige Fischer  Ken Vance-Borland  Kelly M. Burnett  S. Hummel  Janean H. Creighton  Sherri L. Johnson 《社会与自然资源》2014,27(7):671-688

Patterns of social interaction influence how knowledge is generated, communicated, and applied. Theories of social capital and organizational learning suggest that interactions within disciplinary or functional groups foster communication of knowledge, whereas interactions across groups foster generation of new knowledge. We used social network analysis to examine patterns of social interaction reported in survey data from scientists and managers who work on fish and fire issues. We found that few fish and fire scientists and managers interact with one another, suggesting low bridging social capital and thus, limited opportunity for generation of new knowledge. We also found that although interaction occurs among scientists—suggesting modest bonding social capital—few managers interact with other managers, indicating limited opportunity for communication of scientific knowledge for the purposes of application. We discuss constraints and opportunities for organizational learning evident in these patterns of social interaction among fish and fire scientists and managers.  相似文献   

Research Approaches for Understanding,Enhancing, and Monitoring Community Resilience     

Helen Ross  Fikret Berkes 《社会与自然资源》2014,27(8):787-804

The growing interest in the understanding of community resilience suggests a need for improving research approaches. This article reviews methods used to date, and suggests opportunities for expanding the range and efficacy of approaches used to understand, improve, and monitor the coupled social and ecological aspects of community resilience. We explore three potential foci: research approaches that enhance understanding of community resilience; those that help to improve community resilience through the research process; and the further development of methods to guide monitoring. Most studies have relied on mixed and multistaged methods, including in-depth interviews and case studies. We comment on the wide range of approaches used, and suggest others that could be valuable. There is particular scope for greater use of cumulative studies, historical or retrospective studies, participatory methods, and systems approaches, and a need for more methods that explore the coupling of social and ecological dimensions.  相似文献   

Wildfire-Migration Dynamics: Lessons from Colorado's Fourmile Canyon Fire     

Raphael J. Nawrotzki  Hannah Brenkert-Smith  Lori M. Hunter  Patricia A. Champ 《社会与自然资源》2014,27(2):215-225

The number of people living in wildfire-prone wildland–urban interface (WUI) communities is on the rise. However, no prior study has investigated wildfire-induced residential relocation from WUI areas after a major fire event. To provide insight into the association between sociodemographic and sociopsychological characteristics and wildfire-related intention to move, we use data from a survey of WUI residents in Boulder and Larimer counties, Colorado. The data were collected 2 months after the devastating Fourmile Canyon fire destroyed 169 homes and burned more than 6,000 acres of public and private land. Although this study is working with a small migrant sample, logistic regression models demonstrate that survey respondents intending to move in relation to wildfire incidence do not differ sociodemographically from their nonmigrant counterparts. They do, however, show significantly higher levels of risk perception. Investigating destination choices shows a preference for short-distance moves.  相似文献   

Improving National Park Service and Nonprofit Partnerships—Lessons from the National Trail System     

Ray McPadden 《社会与自然资源》2014,27(12):1321-1330

Federal land management agencies are increasingly relying on collaborative partnerships for managing national trails, heritage areas, scenic rivers, and recreation areas. For agencies such as the National Park Service, these joint approaches are significantly different from traditional management approaches. This article uses a case study of the Juan Bautista De Anza National Historic Trail to identify partnership lessons for this case and other protected areas that rely on public–private partnerships. The research highlights partnership issues with nonprofit capacity and mission alignment, project momentum, and leadership dilemmas. We suggest that agencies such as the National Park Service need to assess the mission and capacity of community and nonprofit groups to determine their partnership approach. This is a significant shift, from agencies simply needing to find organizations willing to partner on collaborative management efforts, to a role in assessing, forming, and developing nonprofit partners.  相似文献   

西北干旱农牧交错带地表基质调查成果经验     

张思源  袁帅  邢怡  刘永新  王永亮 《地质论评》2024,70(S1):331-332

  相似文献   

某首层柱顶隔震结构动力特性测试研究   总被引：1，自引：0，他引：1  

吴应雄  祁皑  颜学渊 《地震工程与工程振动》2011,31(6):147-152

为了达到隔震设计的目的并检验隔震层的工作性能,测试分析了采用首层柱顶隔震技术的某五层框架结构在环境激励和初位移条件下的动力特性,得到了结构的前3阶自振特性如自振频率、振型和阻尼比;分析了初位移条件下隔震层的自由衰减曲线和滞回性能.结果表明:环境激励条件下,隔震结构与非隔震结构动力特性相近,隔震结构在正常使用状态下具有足...  相似文献   

单管通信铁塔结构基本自振周期分析及抗震应用     

穆宇亮  刘巧英  张博 《华北地震科学》2011,(4):58-60

利用ANSYS软件分析了单管通信铁塔结构的基本自振周期特性,针对不同高度和不同圆形外平台数量进行大量参数分析,得出了在不同参数下单管塔的基本自振周期,并通过有限元计算结果拟合出估算单管通信铁塔结构的基本自振周期的实用计算公式,对实际工程的抗震设计工作有一定参考价值.  相似文献   

建筑结构时程分析法中天然地震波的选择   总被引：1，自引：0，他引：1  

尤宇星  黄圣棕  谢文杰 《地震地磁观测与研究》2011,32(4):22-26

要保证建筑结构时程分析结果的合理性,必须合理选择输入地震波。从工程实例出发,考虑峰值、频谱特性、地震动持时及适当的地震波数量,说明如何挑选合适的强震记录作为结构工程时程分析的输入,以此进行工程的抗震设计。  相似文献   

祁连山冻土区天然气水合物烃类气体组分的特征和成因     

黄霞  祝有海  王平康  郭星旺 《中国区域地质》2011,(12):1851-1856

祁连山冻土区天然气水合物DK-2科学钻探试验孔水合物储集层岩心气样的烃类气体组分和c同位素分析测试结果表明,祁连山冻土区天然气水合物烃类气体组分复杂,除甲烷外,还含有较高的乙烷和丙烷;δ13C。均大于-50‰,R值普遍小于100,显示出明显的热解气特征。结合钻探区的地质背景和岩性特征,初步判断气体大多来源于深部迁移上来的油型气,并有部分原地煤成气的混合。  相似文献   

祁连山冻土区天然气水合物气体组分的气相色谱法测定     

贺行良  刘昌岭  孟庆国  祝有海  业渝光  夏宁 《中国区域地质》2011,(12):1857-1862

建立了气相色谱法测定祁连山冻土区天然气水合物C1-C5气体纽分的分析方法,对比研究了单点法与多点法校正、外标法与外标归一化法定量。以及顶空法与排水法2种气体收集方式的区别。结果表明：顶空法制备、单点法校正、外标归一化法定量计算为气相色谱法测定天然气水合物气体组分的最佳方法。方法相对标准偏差（ILSD）为0-1．06％,检出限为0．0003％-0．0127％。通过对祁连山冻土区DK一2孔10个天然气水合物样品的测定,发现C,含量为60．64％-78．76％,C：含量为8．99％-13．60％,C3含量为6．58％-21．24％,C4和C5含量较少,可见c,气体组分含量丰富,具有较低的C1／C2＋比值（1．5-3．7）,显示出明显的热解气特征。关键词：祁连山冻土区;天然气水合物：气体组成;气相色谱法  相似文献