The Research Of Library Information Ecosystem Based On Knowledge Service

The social phenomena about information imbalance such as information redundancy,information junk,information islands,information divide and so on bring negative impact for modern library in term of collecting and using information resource, and brought a serious challenge to the library services too. Information overabundance and satisfy reader become the principal contradiction of library services, knowledge service appear escalate this pair of contradiction unexpectedly, how to relieve this pair of contradiction become the urgent task on hand of modern library.The research of information ecosystem produce new perspective for theory and practice of library, many scholars have been studying how to use of the information ecological theory to solve the information imbalance problem in library services. This article launches research on Library information ecosystem based on knowledge service on the basis of analyzing theories of information ecosystem sufficiently. By looking through massive related documents at home and abroad, the author believe this article will bring a new idea to theory research and practice of library service, also cause library service harmonious developt better. Firstly, this article advances meaning and features about library information ecosystem through researching the theories of information ecosystem and making comparative analysis between library and natural ecosystem, and tries to analyze the factors of library information ecosystem. Library information ecosystem is a new research paradigm, who consists of information,information subject (information people),information environment. It is artificial system who can accomplish information transmission and dynamic balance by self-regulation. Secondly, this article launches research on supported mechanisms of library information ecosystem based on knowledge service, including knowledge service theory,information knowledgeable mechanisms and information ecological balance mechanisms. The three mechanisms research is not only the important components of this article, but also the theoretical basis for the construction and management of library information ecosystem based on knowledge service. Thirdly, this article expounds evaluative process of information ecological subject and relationship of ecological subject on the basis of researching information services' information subject, and believes that information ecological subject is the evolution goal of information subject, knowledge service population especially knowledge producer is the core of information ecological subject. In the end, this expounds the aim and function of library information ecosystem, believes information ecological balance and harmonious sustainable development is the final goal of library information ecosystem, cooperative evolution is the final function reflection of library information ecosystem. Then it researches the relationship between library information ecologic chain and ecological factors, advances information ecochain consists of information fields,information major chain,information auxiliary chains,information circular chains and exists cooperative development relationship among ecological factors. This structures the model of library information ecosystem and logical construction. Library information ecosystem consist of ecological resources control subsystem,ecological factors regulation subsystem,ecological service evaluation subsystem and ecological information management subsystem. The system contains five structural relations. At last it also advances four management measures for information balance.