Geographical Linguistics is based on language factual survey，Use the language map to describe the geographical distribution status of language phenomena，Explain the reasons for these distribution in combination with social and cultural factors，The process and mechanism of exploring language changes。Study Chinese dialects in domestic use of geographical linguistics theory and methods，The earliest Chinese dialect characteristic map formed is the "Guangdong -Guangdong" dialect。Research on geographical linguistics of Chinese dialects，Study on geographical linguistics in national language starts late。With the development of language resource protection projects，Endangered language protection has received the attention and attention of academic circles。Digitalization is an important means to help the protection of endangered language。Use the theoretical and methods of geographical linguistics to study the common time distribution and duration of endangered language，It is also an important way for the protection of endangered language。

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Chinese minority language is rich and complicated。With the continuous development of history，Ethics of ethnic minorities to varying degrees of ethnic culture、Language、Customs and environmental impacts，Complex language blending。So，It should be based on multiple angles、Use multiple methods，Deepen the study of ethnic minority linguistics。Take Olechun Bet365 app download as an example，Rich research results have been achieved at present，Diverse research perspectives，Rich theoretical method，Including Language Types、Experimental Linguistics、History comparative linguistics、Compared with linguistics, etc.。but，As of now，No scholars have studied Olunchun from the perspective of geographical linguistics。

The Ole Chun nationality is one of the least ethnic minorities in the Northeast。The Ole Chun people have their own language，But there is no text。The Elun ethnic group has been living in the dense forests of deep mountains，in a semi -closed state，It is one of the minority ethnic groups that settled down late in China，The place of residence is relatively gathering after settlement，So the Olechun language is more completely circulated。Olunchu has different dialects，The difference between the dialect is formed on the basis of the Elunchun distribution area。From the perspective of the geographical distribution area of ​​the Ororen Chun tribe，Each region is not only relatively concentrated，And the tribes are clearly managed by the administrative setting of the government government。Long this time，It has formed its own dialect area。Although there are differences in each dialect area，But you can communicate with each other。Olechun language belongs to endangered language，and geographical linguistics can provide new ideas for research。

Current，Olunchu research mainly involves grammar、Vocabulary、voice characteristics and endangered causes and protection strategies。First，Research results in grammar，Mainly grammatical structure、Sentence -style Bet365 app download characteristic perspective analysis and the usage of a certain type of word。Next，Research on voice，Its results are mainly using experimental voice research methods，Analysis of the acoustic characteristics of Ororen Chunyu and the voice differences of neighboring nations。Last，Because Olechun language is an endangered language，There are also results in the academic community.。

The results of the above research are mostly a common research on Olechun.，Some scholars interpret this from the perspective of duration comparison。Current，Olunchu research under the perspective of geographical linguistics has rare results，The geographical distribution and differences between different dialects of Olechun language are weak。Geographical Linguistics can provide basic materials for related demonstrations。Cao Zhiyun pointed out，"Different from the development and evolution of a language in various places，Differences on common plane between local languages，Actually it may be the relic of the characteristics of different historical stages of the language，That is to say，The common difference between the language can reflect the duration of the language "。So，When studying the historical comparison of Oleenchu，You can use geographical linguistics in it。

Geographical Linguistics can enrich historical comparative linguistics theory。Observation and explanation of a language，You need to put it in a wider geographical space。The changes in the language not only stemmed from the reasons inside the system，There is also the influence of external factors，Ru custom、Administrative Area、Geographical Environment、Terranian and localforms。These factors can be presented through geographical linguistics。

Bet365 app download other，"Wave Theory" can also be used as the theory and method of improving historical comparative linguistics。According to "Wave Theory"，The diffusion of the language is to move forward from the center to the surroundings.。During the diffusion process，The influence of the language will be resisted to a certain time，In the case of resisting invalid，Another language will fusion、Changes to the end，At the same time, there will be reverse effects。In a geographical area，centered on strong language，diffuse to the surroundings，and the language that affects farther through the surrounding language。"Wave Theory" can supplement the lack of language differentiation research，Its research results have certain reference value for historical comparative linguistics。So，Based on geographical linguistics，Under the perspective of historical comparative linguistics and "wave theory"，It can expand the research ideas of Ole Chunyu。

　Research and protection mutual promotion 

Current，Corresponding policies for the protection of language resources to protect endangered language，and set up multiple research institutions。Olechun as an endangered language，It is also the target language of the language protection project，At present。Current，Protection of language resources，It is mainly concentrated in three levels -save、Inheritance and dissemination。

With the development and application of digital technology，Save physical language has become possible。So，Relevant experts proposed，You can draw details through language multimedia database、Precise multimedia language map。Before drawing multimedia language map，You can use Bet365 lotto review the language map of geographical linguistics，Interpretation of Multimedia Map of Olechun。The advantage of the language map is，It can reflect the surveyed Olechun language in the voice、Vocabulary and grammar differences。other，The survey mode of geographical linguistics is distributed in a network，It can reflect the surveyed Olechun language in the voice、Regional distribution and direction。At the same time，Due to the content of the survey of geographical linguistics, it needs to be unified，It also makes the survey results more convincing。Explanation of Language Maps，It should be based on the internal evolution of the language and external non -language factors。

Overall，Geographical Linguistics can give the language material of Ororenchun，Place in geographical plane and social level interpretation。Language map drawn according to geographical linguistics theory，It can show the appearance of the Elchun language in a more complete and systematic manner，Provide basic materials for the drawing of multimedia maps and historical comparative linguistics, as well as ethnic minority regional cultural research，Promoting the protection of Ole Chunyu。

There are many ethnic minorities in our country，There are many types of language and huge differences。With the continuous development of technology and the deepening of economic globalization，Diversity of national traditional culture encounters crisis。Theory and method of geographical linguistics，It can provide new research perspectives for endangered language research。Geographical Linguistics Research in Chinese Dialects has more than 70 years of history，Get rich research results。From the perspective of the current results，Geographical bet365 Play online games Linguistics Research on the Language Language of Ethnic Minorities is mainly concentrated on the language of ethnic minorities in the south，Learned studies on the language of Northeast Minorities。Current，Mantong Gus language is in an endangered state due to the changes in the living environment and production methods，Especially Manchu and Hezhe，Endangered situation is more serious。Zhao Aping proposed in the "Construction and Research and Research and Research and Research of China Mantong Gusi Language and Mathematics Database"，It is currently necessary to rescue and establish a corpus database and the establishment of a corpus database and carry out a comprehensive system.。This article mentioned in the construction method of Mantong Gusi Calculus database，It mainly includes structural linguistics、Human Linguistics、Social Linguistics and Calculating Linguistics and other multidisciplinary theories。

Core thought of geographical linguistics，Geographical distribution through language characteristics，Push the speech evolution trajectory。So，During the field survey，You can link the language of the adjacent area，Get the evolution trajectory of specific voice projects。Complex language geographical differences and long national history and rich social and cultural background，It is a fertile soil that is very suitable for geographic linguistics。So，Study on geographical linguistics in endangered language such as Olechun language，Can promote the maturity and progress of the research method of geographical linguistics，Rich Chinese Language Research Types，and provide help for the protection of endangered language。

　　(This article is the theoretical system and path study of language governance of the humanities and social sciences of the Ministry of Education of the Ministry of Education (22yjc740015) 

(Author Unit: Manchuria Research Institute of Heilongjiang University; School of Language and Literature, Chinese Minority Language and Literature of the Central University for Nationalities)