维普中文期刊产品整合服务
2篇 您的检索式:作者名="Christopher Rumpf"
    题名 作者 年代 出处 被引量
1体育赞助效果评估显示文摘据普华永道2012年度报告显示,全球体育赞助投入预计在2013年将达到352亿美元,较之2012年上涨5.1%。较于体育赞助市场的蓬勃发展,体育赞助效果的评估方法仍然处于探索阶段。目前广泛应用的评估方法仅是分析赞助信息曝光度对消费者记忆度的影响。然而,消费者接收和认知赞助信息的过程却被完全忽略。为弥补这一研究领域空白,研究采用实验法,利用视线追踪技术分析消费者对赞助刺激的注意力,通过回归模型分析消费者对赞助刺激的认知处理过程。实验结果表明消费者对赞助刺激的注意力是由赞助刺激的摆放位置和影响曝光度的3种因素所决定的;另外,消费者对赞助商的回忆度取决于消费者注意力和品牌熟悉度等因素。因此,赞助商应当首要考虑赞助刺激对消费者注意力的影响。基于本实验结果建立的体育赞助效果评估模型,可以帮助赞助商评估赞助效果和赞助合约价值。Christoph Breuer Christopher Rumpf 席驰 2015北京体育大学学报2015,38,4:4
2Success factors for high-quality oak forest(Quercus robur, Q. petraea) regeneration显示文摘Background: Within the framework of close-to-nature forestry, oak forest(Quercus robur, Q. petraea) regeneration techniques that consider both silvicultural and nature conservation demands have become a very important issue.While there are many experimental and local studies that aim at disentangling the relationships between different environmental and silvicultural factors and the success of oak regeneration, systematic supra-regional studies at the greater landscape level are missing so far.Against this background, the first objective(a) of this study was to present an efficient and sufficiently accurate sampling scheme for supra-regional forest regrowth inventories, which we applied to young oaks stands. The second, and major, objective(b) was to identify the crucial success factors for high-quality oak forest regeneration in northwest Germany.Results: Objective(a): Factors that have been identified as potentially crucial for the success or failure of oak regeneration were either included in a field inventory procedure or extracted from forest inventory databases. We found that the collected data were suitable to be analyzed in a three-step success model, which was aimed at identifying the crucial success factors for high-quality oak forest regeneration.Objective(b): Our modeling procedure, which included a Bayesian estimation approach with spike-and-slab priors,revealed that competitive pressure from the secondary tree species was the most decisive success factor;no competition, or low competition by secondary tree species appeared to be particularly beneficial for the success of high-quality oak regeneration. Also fencing and the absence of competitive vegetation(weeds, grass, bracken)seemed to be beneficial factors for the success of oak regeneration.Conclusions: Trusting in biological automation was found to be mostly useless regarding economically viable oak forest regeneration. To efficiently organize oak regeneration planning and silvicultural decision-making within a forest enterprise, it is strongly recommended to initially evaluate the annual financial and personnel capacities for carrying out young growth tending or pre-commercial thinning and only then to decide on the extent of regenerated oak stands. Careful and adaptive regeneration planning is also indispensable to secure the long-term ecological continuity in oak forests. Oak regeneration should therefore preferably take place within the close vicinity of old oak stands or directly in them. The retention of habitat trees is urgently advised.Andreas M?lder Holger Sennhenn-Reulen Christoph Fischer Hendrik Rumpf Egbert Sch?nfelder Johannes Stockmann Ralf-Volker Nagel 2019Forest Ecosystems2019,6,4:0
返回顶部 每页显示:
共1页 首页 上一页 第1页 下一页 末页 /1 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费