| There have been marvelous changes for Chinese society in the past 30 years,TV news media changes apparently as well, the rule, the status and the function of which have adjusted with the evolution of different parts of society.The basic question this thesis attempts to tackle is how television news media, as the main mass media of our society, has been influenced and restricted by the surroundings, and how TV news media have reacted to the surroundings at the same time. In the investigation and evaluation of this question, we could find the relations between the evolution of TV news media and the exterior causes.Concerning this issue, this thesis chooses the theory of media ecology as analytical method.From the angle of Media Ecology, the whole society is a media ecological system centering on the TV news media. This ecological system changes in step with the development of Chinese society. In the system, TV news media interact with such factors as politics, economy, civilization and technology. In the course of explorations, there is still a long way to go for Chinese TV news media ecology to get balance. This unbalanced situation originated within the media, also originated from the exterior factors around the media,both interfered or spoiled the effect of TV news communication. With the consciousness of media criticism, I try to analyze the unbalanced parts of TV news media ecological system, and find out the direction and focuses of future developments.Steps of argument are as follows: Make certain the composition of TV news media ecological system; Analyze the modification of news report manners of TV news under the influence of the political factors in transition; Analyze the changing of the survival role of TV news media in market economy; Inquiry the geographical distribution , contents of reports and communicational state of TV news media in the transformation of cultural ecology; Explain the progress of TV news media under the circumstances of new media technology; and observe the reactions of TV news media to external ecological factors from the angles of natural quality of television and TV news production rules.The thesis concludes that: the survival, development and progress of TV news media is not isolated from the affect and constrain of all kinds of ecological factors. In order to get the best performance of TV news media, we should take all aspects of society into consideration as a whole.Paying attention to the pollution, degradation and destruction of TV news media ecology in transition, taking national conditions and the status of the media into account, we have to do some reasonable maintenance and repair in order to make a better use of media ecological resources. The benign interaction among government, media and the public will lead to a healthy and balanced ecological cycle in which all aspects of the society can benefits from it.
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