In the paper Part 1, the authors discuss the findings of the statistical review of ecological literature in Donetsk People’s Republic (before 2014 – Donetsk Oblast). The bibliographic data of 2000–2024 were processed. The authors substantiate the terms “profile” and “landscape” as applied to bibliographic data statistics. They tested the method of weighing ecological publications multifunctionality for identification of trends in the nature management sector and technological development of the Northern Azov Region. During the period under the study, the region worked the way of socioeconomic growth and development, as well as the deepest perturbations and double change of national affiliation. This affects the character of revealed publication profiles against the background of general ecological bibliographic landscape in Donbass. The purpose of the study is to summarize the accumulated bibliographic data pool using the statistical approach, i. e. definitive correlation of each publication with several subject headings. The bibliographic data were classified by 24 headings. For the first time, two indicators by special criteria were applied in the ecological field: 1) number of publications on environment optimization technologies; and 2) implemented methods of ecological information utilization in related educational activities. Through the correlation analysis, the distribution of the publications number by the subject headings for the 25-year period was examined for the first time. The obtained thermal map and dendrogram demonstrate the dependencies of headings by year, and enable to group some patterns in the character of ecological publications of the same period.