黑龙江兰远草原自然保护区植物的种类组成与生活型谱分析

基于保护区植物名录和野外调查统计数据,采用Raunkiaer生活型分类系统,对兰远草原自然保护区的植物种类组成生活型谱进行分析。结果表明保护区内植物全为被子植物,共有363种,分属177属,53科。该区植物生活型组成以草本地面芽植物为主49.59%,其次一年生植物占22.87%;地下芽植物种类占21.49%;地上芽和高位芽很少,占3.86%和2.20%。总体上反映了该区夏季温暖湿润,冬季漫长而寒冷的气候特点。     

武钢防城港钢铁基地项目取土场防护治理措施研究

大型填海工程的建设需要大量的回填土方，因此取土场的选择、防护及治理是该类工程水土保持方案重点关注的内容之一，而搞好取土场的恢复治理是减少该类工程施工及运行期水土流失的主要手段。文章通过介绍武钢防城港钢铁项目取土场防护治理措施的设计、研究、分析，总结了大型填海工程建设中取土场的选择原则、工作方法及治理措施，供同类工程设计参考。     

价值工程在电厂热力系统设计中的应用

通过对电厂热力系统设计方案的优化,说明在设计阶段应用价值工程理论有很好的效果。     

气相色谱检测植物性食品中氟啶虫酰胺残留量

气相色谱法快速检测方法在应用过程中,旨在要求实验人员在实验活动开展过程中应注重规范GPC收集时间、固相萃取小柱等技术规范,同时结合氟啶虫酰胺残余量检测要求,将检测作业中净化收集时间控制在7 min左右,并利用DB-1701气相色谱仪对检测结果进行分析,达到最佳的残余量检测作业状态。     

人工湿地植物能源化利用的机遇、挑战与展望

综合概述了利用人工湿地植物进行能源化再生产的方式、优势、存在问题和发展趋势。人工湿地植物具有生长不需额外施肥、较高的生物量、物种多样化等优势,是一种较好的生物质资源,可通过生物质固体成型燃料技术、沼气技术和燃料乙醇技术加以利用,进而建立人工湿地植物生物质能源化利用模式,实现应对能源挑战、进行污水处理和强化环境保护三者的有机统一。     

管理会计在河北企业的实践:回顾与展望

管理会计在20世纪70年代末伴随中国的改革开放从西方引入中国,经过本土化实践,河北省企业创造和提炼出马胜利的三十六计、满负荷工作法、涿化模式、邯纲经验等在国内具有一定特色的系列会计经验,使管理会计的中国化应用达到了较高水平。     

合理利用鄱阳湖湿地种植季节性农作物初探

文章阐述了鄱阳湖湿地概况及历史利用情况,湿地种植季节性农作物的8项有利条件,重要意义及主要政策措施,提出实行"三为主",即能手大面积承包、村委会带头组织、农户自筹资金为主,并提出做到"三结合"、坚持"三原则"、防止"三种倾向"。     

A qualitative study of high-reputation plant managers: Political skill and successful outcomes

There has been little systematic study of what plant managers actually do on a day-to-day basis that accounts for their success in achieving organizational outcomes. In our field interviews and observations of high-reputation plant managers from 11 manufacturing plants, we found that effective political skill enabled them to influence subordinates in ways that contributed positively to organizational outcomes. Political skill is an interpersonal style that combines social astuteness with the ability to relate well, and otherwise demonstrate situationally appropriate behavior in an engaging way that inspires confidence, trust, and genuiness [Ferris, G.R., Perrewé, P.L., Anthony, W.P., Gilmore, D.C., 2000. Political skill at work. Organizational Dynamics 28 (4), 25–37]. We observed that effective plant managers possessed a configuration of dispositional traits (self-motivation, sense of humility, and affability), systematically employed interpersonal behaviors (creating accountability, leading by example, and developing trust), and focused on managerial processes (stretch goals, influencing and learning from below, and empowering direct reports). By juxtaposing the political skill and power literatures, we propose a theory of plant manager effectiveness as a combination of political skill and the use of unobtrusive and systemic power to achieve both affective and substantive outcomes.     

浅议森林病虫害

我国是世界上自然灾害频繁发生和危害十分严重的国家,林业灾害是我过主要的自然灾害,"是不冒烟的林业火灾"是林业发展、生态建设的大敌。林业病虫害制约了生态建设的步伐,在新的历史时期,减少灾害,优化人居环境,实现可持续发展,亦成为我们目前需要研究的重大课题。     

Plant Size,Nationality, and Ownership Change

This paper asks whether the motivations behind mergers manifest themselves in different ways across small versus large plants, and between foreign- and domestic-owned plants. The sample consists of all the manufacturing plants in Canada between 1973 and 1999 and is divided into size quartiles by industry and grouped into foreign- and domestic-owned producers. We find that characteristics that are postulated to be associated with the type of synergy upon which ownership changes rely are found to be important factors leading to plant ownership changes across most size classes. However, the importance of synergies increases across size classes in domestic plants. Foreign-owned plants are more likely to experience control changes than domestic plants across all size classes. These differences are closely related to the characteristics possessed by foreign plants that offer takeover synergies. There is also evidence of a managerial failure motive for mergers in the foreign sector that is not found in the domestic sector.