中文摘要：

选择以信息流通互动水平突出的新浪微博为样本获取平台,以珠三角地区保健微博用户为样本来源地,通过相关标签检索、筛选、编码获得保健资讯生产者与关注者样本。运用社会网络分析方法、空间自相关和逐步线性回归方法,对生产者之间的社会网络交互特征、关注者的空间分布格局及其影响因素进行分析。研究结论为：1）保健微博生产者之间能够构建本地社会网络,各类型间存在显著分异,但是地区差异特征较弱;2）通讯设施和地方医疗水平是保健微博关注者出现空间分异的主要因素;3）关注者的分布仍然受到地理要素的限制。

英文摘要：

It is important to learn the spatial features of the health care message producers and followers in the Internet world.We chose Sina microblog as the research object,which is very prominent for its Internet information flow,and selected the Pearl River Delta urban agglomeration as the sample source.On the basis of retrieval and content analysis,we separated the samples into two classes：producers and followers.We used social network analysis,spatial autocorrelation,and stepwise linear regression to learn the social network features of the producers and the spatial distribution features and influence factors of the followers.The results showed that：Firstly,the producers could build a local social network via the Internet.Differences were significant between groups but not between regions.Secondly,communication facilities and local medical level were the major factors for the spatial differentiation of the health care microblog followers.Finally,the spatial distribution of the followers was still limited by geographical factors.