Description and prescription co-realization principle: Mongolian languages in Russia

The paper focuses on the problem of linguistic methodology, namely in research of the RF regional languages, including Buryat. The author claims that the form-oriented descriptive approach has been out-of-date, since it depicts a certain ideal system that no longer functions or manifests in the given way. Another reason for its irrelevance is the inconsistency with the system-like polydisciplinary vision of the object. The author suggests scholars’ turning to the prescriptive approach in the framework of the new ecolinguistic trend, since the latter tries to model cause-and-effect relationships, the ones that connect external and internal conditions to have the language situation in the region formed. In the issue of the language vitality reset, Mongolian might be referred as a source language in broad and narrow senses. There is also a need to develop prescriptions in linguistic landscape, and lexicography.