公共知识分子在争议性公共议题中的作用与局限———以“浙江温岭虐童事件”的微博表达为例

采取定性与定量相结合的方法对公共知识分子与争议性公共议题相结合的典型案例——“浙江温岭虐童事件”的发展过程进行探析，发现微博空间中的公共知识分子利用专业知识对存在争议的事件进行解释和分析起到了弥补受众专业知识空白、引导受众深入思考问题、改变舆论场等积极作用。然而，微博空间中公共知识分子的话语表达具有一定的局限性，受到了网络空间共景式监狱的监督结构、话语引导单向度发展等一系列因素的影响。为此，应对受众加强伦理建设和理性引导，增强公共知识分子承担相应责任的积极性，而且微博运营者也应凸显公共知识分子在公共空间中的话语地位。

Role and Mechanism of Public Intellectuals in Controversial Public Issues and the Predicament of Discourse ~A Case Study of the Opinions on ＂the Child Abuse Case in WenUng Zhejiang＂ Expressed on Weibo

Research is conducted on the role and mechanism of public intellectuals in the controversial public issue Zhejiang Wenling child abuse event by using a combination of qualitative and quantitative methods. It is found that the public intellectuals in Weibo space utilize professional knowledge to interpret and analyze the controversial public events. They have played a positive role in the events such as making up professional knowledge gaps for audience, guiding the audience to think deeply, changing public opinions and so on. However, the public intellectuals＇ expressions have certain limitations in weibo space because of the confined oversight structure and the mode of unidirectional development discourse. In this regard, we should strengthen the construction of ethics and rational guidance of the audience and encourage them to take their responsibility. And the operator of weibo should highlight the importance of public intellectuals＇ opinions in public area online.