Research On The Changes Of The Natural Environment Of Yinshan Mountai

The Yinshan Mountain is an important mountain range across northern China.It is not only an important geographical boundary,but also plays an important role in Chinese history.The blocking effect of tall mountains makes the climate and environment difference between the north and south of the Yinshan Mountain obvious,forming a typical agricultural and animal husbandry separation line.The environment suitable for agriculture and animal husbandry provides an important living space for farming and nomadic nationalities.The exchange,confrontation and other interactive behaviors of farming and nomadic nationalities in this special region in the historical period not only had a significant impact at that time,but also had an impact on the trend of Chinese history.In view of the important position of the Yinshan Mountain in the development of Chinese history,scholars pay more attention to the history of Yinshan area,but the existing research mainly had focused on major political,military events and key historical figures.There is relatively little research on the natural environment of the Yinshan Mountain in the historical period,especially the comprehensive and systematic research on the natural environment change of the Yinshan Mountain.Human survival and development are closely related to the natural environment.The Yinshan Mountain is located in the ecotone of agriculture and animal husbandry,and the natural environment is very special and sensitive.To make a long-term,overall and comprehensive exploration of the changes of the natural environment in this area,and further analyzes the causes and effects of the changes.This is of great significance to correctly understand the relationship between man and land in this regional historical period and master the law of environmental change in ecologically fragile areas.Based on the literature and archaeological data,this paper explored the complex process,causes and influence of the change of the natural environment of the Yinshan Mountain in the historical period.The full text consists of four chapters.The first chapter focuses on the natural characteristics of the Yinshan Mountain and the process of regional social change.In terms of natural characteristics,the Yinshan Mountain is long from east to west and has great differences in natural environment from north to south.It is a typical the Farming-Pastoral Ecotone.In terms of regional social changes,the Yinshan area has a long history of human activities.It is an important area for the exchange and interaction between farming and nomadic nationalities.The second and third chapters explored the process of the change of the natural environment of the Yinshan Mountain from the Paleolithic age to the middle of the 20 th century through the situation of vegetation,animals,rivers and lakes.Through research,it is considered that the natural environment of the Yinshan Mountain was in a tortuous period before the middle of the 17 th century.Specifically,from the Paleolithic age to the end of the second century,the natural environment changed several times under the influence of climate fluctuations,and human beings began to exert influence on the natural environment.From the end of the second century to the end of the sixth century,the Yinshan Mountain was a superior grassland environment,and human activities had only a small impact on the local environment.From the end of the sixth century to the beginning of the tenth century,the natural environment of the Yinshan Mountain was good on the whole,but the conditions of rivers and lakes changed,the agricultural landscape expanded significantly,and the phenomenon of environmental damage appeared in some parts.From the beginning of the 10 th century to the middle of the 17 th century,while the natural environment was restored,the agricultural landscape and urban landscape were further expanded.From the middle of the 17 th century to the middle of the 20 th century,the natural environment of the Yinshan Mountain changed dramatically.During this period,the natural environment of the Yinshan Mountain had a comprehensive and violent change process,including destruction,shaping and restoration.The fourth chapter analyzed the reasons for the change of natural environment in the Yinshan Mountain,and summarized the impact and enlightenment of environmental change.The natural factors that affect the natural environment of the Yinshan Mountain include the environmental particularity of Yinshan area,climate change and the natural swing of and rivers.Human factors include differences in economic types,policy impact,pressure caused by population,differences in resource utilization methods and development concepts.The interaction between natural factors and human factors makes the natural environment of the Yinshan Mountain appear a complex change process.The changes of the natural environment of the Yinshan Mountain in the historical period had an impact on the society at that time,and also laid the foundation and provided valuable experience for the development of this region in the future.Based on this research,it is considered that in the future development,we should pay attention to the particularity of regional environment,formulate development mode according to local conditions and reasonably plan human activities.