In the paper Part 2, the authors introduce the findings of the analysis of ecological bibliography landscape in Donetsk People’s Republic (Donetsk Region before 2014). The data for 2000–2024 were processed for the study. The paper goal is to generalize the bibliographic data pool through the statistical approach of comprehensive correlation of the publications with several subject headings. The method has proved its effectiveness as the content of a single published information source enables to solve several ecological tasks at once or to explore into several problems in a verified publication. For the first time, through the correlation analysis and principal component analysis, the distribution of the number of publications across the subject headings for the 25-year period was explored. The thermal map of heading profiles pairwise correlation and hierarchical clustering dendrogram, empirical distribution histograms and smoothed distribution density plots for item value (number of publications under one heading by year) were obtained. These representations demonstrate significant characteristics of individual subject headings and time periods within the given data sets, which, in its turn, enables to suggest hypotheses on consistency in the character of ecological publications for the period under examination. The key suggestion is that the subject scope of the studies and corresponding publications in ecology of certain periods reflects the social demands to researchers in various areas engaged in diagnostics, quantifications, modeling, monitoring, control and discussion of significant ecological problems of Donbass. The quantitative data (further analysis and study of their content) on publications on the industrial region’s ecology are used as didactical support of learning within the academic program “Ecology and nature management”.