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本支以信息服务业中的报纸业为研究对象，描述《广州日报》信息来源、加工和扩散的过程，分析其时空变化特征．《广州日报》信息来源的渠道，各渠道的相对重要性，信息的收集和加工的技术效率，信息产品的质量，信息扩散的规模、方式和过程都发生了很大变化，呈现出整体提高的趋势．文章还分析了《广州日报》信息扩散的空间变化特征，并对这些特征的形成因素进行了确定。文章最后还对本案例研究的理论意义进行了讨论，指出；在多个微观案例研究的基础上进行宏观概括将更接近事情的真相。
This paper takes the newspaper industry in the information service industry as the research object, describes the process of the source, processing and diffusion of the “Guangzhou Daily” information and analyzes its temporal and spatial changes. The channels of Guangzhou Daily’s sources of information, the relative importance of each channel, the technical efficiency of information collection and processing, the quality of information products, the scale, methods and processes of information proliferation have undergone tremendous changes, showing an overall increase trend. The article also analyzes the spatial variation characteristics of “Guangzhou Daily” information diffusion, and determines the forming factors of these characteristics. Finally, the article also discusses the theoretical significance of this case study, pointing out that macroscopic summarization based on multiple micro case studies will be closer to the truth of the matter.