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[目的 /意义]在信息超载的背景下,文献量逐步攀升,借鉴生态学思想探讨文献环境下概念的稳定性规律,为叙词表编制提供跨学科视角的理论依据。[方法 /过程]以生态位法则为基础,将文献环境模拟生态环境,物种对应概念,环境对应文献,统计文献中概念的数量,考察文献中概念含义,验证生态位法则在知识系统下的适用性,提出生态位法则下的概念稳定变化规律。[结果 /结论]知识系统下的文献概念遵循着生态学思想,同一领域下文献的一个主题对应一个概念,概念的数量保持稳定,概念含义趋向于一词一义,知识系统下概念的数量与含义均符合生态位法则。
[Purpose / Significance] In the context of information overload, the amount of literature is gradually increasing, and the stability of concepts in the literature environment is explored from the perspective of ecology to provide a theoretical basis for the preparation of the thesaurus from an interdisciplinary perspective. [Method / Process] Based on the niche rules, this paper takes the literature environment as a model to simulate the ecological environment, the concept of species correspondence, the number of concepts in environmental correspondence and statistical literature, the meaning of concepts in the literature, and the application of the law of niche in the knowledge system And put forward the law of stable change of concept under the law of niche. [Results / Conclusions] The concept of document under the knowledge system follows the concept of ecology. One topic in a document under the same field corresponds to a concept. The number of concepts remains stable. The concept meaning tends to be synonymous. The number of concepts under the knowledge system Meanings are in line with niche rules.