The notion of economy of nature has a long history and is always present in the ecological and environmental investigations. The term was used for the first time by the outstandery Swedish biologist Carl von Linné (1707-1778) in his dissertation „Specimen academicum de oeconomia naturae…”, white was published in Upsala (1749), and was defined as relations amons all bodies [components] of the nature, on which its equilibrium is based on. The same term, without changing its meaning, was used by the founder of geology as a science Ch. Lyell (1830-1833), which was undertaken by his pupil Ch. Darwin (1859). Later on, the notion and the term was utilized by E. Haeckel (1866) as a synonym of ecology. Further, the Romanian scientist Grigore Antipa, one of the founders pupil in the field of ecology, had used, this quite appropiate and useful notion as a methedological basis the ecological research of the Danube Delta and of the Romanian Black Sea litoral, Gr. Antipa (1892, 1910, 1933,1935), utilizing the biocenotical and bioproductive approach of the natural biosystems created a new science – the bioeconomy. Much later (1925), the same term was used (independent of Gr. Antipa) by the Russian biologyst T. I. Baranov. The next two famous Romanian Scientists – the economists N. N. Constantinescu (1976, 1993) and N. Georgescu- Roegen (1971, 1979) have approaced economy from the biological point of view, while Gr. Antipa has developed biology (ecology) from economical point of view. Historically, the paradigmatic line Linné-Lyell → Davwin → Haeckel → Antipa → Constantinescu → Georgescu-Roegen logically rulled towards the global concept (the philosophy) of sustainable development (i. e. of ecodevelapment), officially approved of by the UN Conference „The Environment and Development” (Rio de Janeiro, June 5, 1992).