中文摘要：

网络演化动力是经济地理学讨论的热点话题。然而相关研究集中在一定空间尺度内的网络演化动力,缺少对网络跨尺度演化动力的讨论。以2011年迅速成名的草根歌手朱之文为例,运用百度百科和百度贴吧对朱之文一年来演出行程的详细资料,探讨草根明星活动网络的空间演化过程及其动力。研究发现,朱之文的成名网络经历了地方尺度的个人关系网络、省域尺度的草根成名网络、国家尺度的名人活动网络和全球尺度的影响扩展网络4个网络演化过程,由于信息技术的全面普及,使得朱之文从地方网络向国家再向全球网络的跨越极其迅速。运用关键行动者、组织、技术和制度构建网络空间演化的分析框架,研究认为不同尺度关键行动者是草根明星发生网络跃迁的直接动力,信息通信技术的全民普及是草根明星网络快速升级的重要支撑,各级电视节目宣传平台是草根明星提升网络地位的重要推力,国家层面惠农政策的实施是草根明星频现的根本原因。

英文摘要：

In the era of information,the organizational form of networks is undergoing profound changes.In this context,the question of the evolution of networks is widespread concerned by many disciplines,such as sociology,management,economics and geography.Explaining the network＇s long-term dynamic mechanism is one of the core propositions of the economic geography in the field of network evolution.Current economic geography about the network,however,is often limited to a specific space within either a global scale,a national scale,or a local scale,focuses on the interaction between society actors or economic actors within a particular scale and those power,lacks of the research about network expansion phenomena and network evolution dynamic mechanism that network′actors transferring from the local-scale networks to large-scale networks.The network has a feature geographically scalable,means the network has a local,national,regional,global and other multiple spatial scales.So the aim of this article is to explore the network evolution dynamics across spatial scales.The study is a new attempt in the field of network evolution.Grassroots stars are quality carrier for studying network spatial evolutionary dynamics,which have the process of transferring from local network to regional network,and to national network.The study takes a grassroots star named ZHU Zhi-wen who has become famous in short time in the year 2011 as an example,uses the details of ZHU’s performance trips published in Baidu Encyclopedia and Baidu＇s online user forum,and explores the network evolution dynamics of a grassroots star’s across spatial scales.It was found that ZHU’s network experienced four network stages,specifically,the first stage is personal relationship network in local scale,the second stage is grassroots star network in provincial scale,the third stage is famous person active network in national scale,and the fourth stage is influence extended network in global scale.Due to the overall popularity of information technology,ZHU