Study On The Interaction Of Environment,Crops And Ethnic Groups

Guangxi has always been famous for its mountainous area is far beyond the water and land.There are dense mountains and lots of water.Since ancient times,known as "Zhang xiang".This natural environment has seriously lagged behind the pace of development of Guangxi in ancient China.Similarly,the unique natural environment has also bred a wide range of mountain ethnic groups.In particular,the "Yao" group,it was recorded in the past dynasties,having the obvious characteristics of living with the mountain,During the continuous development of the Central Plains,it showed a continuous migration to the south.We can see,under the influence of the rule of Chinese Great Empire and the Chinese culture thought it adheres to,The ancient "Yao" group must depend on the more independent mountainous environment.Therefore,whether it is the economic development of the Guangxi region,or the mountain communities,especially the "Yao",are more obviously influenced by the surrounding environment than the other parts of China.This influence is naturally affected by feedback from environment and ethnic groups.Northeast Guangxi has the weakest force to resist this influence.So the feedback it gets is more obvious.We can clearly see such changes and feedback from abundant historical data and field survey data in Northeast Guangxi.This is a very suitable and valuable case for studying the relationship between man and land.In this case,The key role is population and agriculture.In the ancient Chinese society,whether it is the economic development or the change of the environment,the main force is manpower,and the main way to develop and transform is agriculture.The Qing Dynasty was the most populous Dynasty in the feudal dynasties of China.Throughout the dynasties,the number of the registered population in all dynasties except for the Qing Dynasty ranged from 50 million to70 million,while in the Qing Dynasty,it was over 100 million.The registered population has reached an unprecedented 420 million in Xianfeng.Such a population needs matching agricultural development level.There were many factors that brought great grain yield in Qing Dynasty,but compared with the past dynasties,the most important factor is the introduction and extension of American food crops.Therefore,the introduction and extension of corn sweet potato and other American food crops in Northeast Guangxi is the main line of research.The first step is to discuss the natural environment and human environment in northeast guangxi.To analyze the climatic environment that changes due to the influence of the ice age.Then the economic recovery in the northeast region of guangxi and the establishment of grain grain structure were discussed.To study the situation of the late ming dynasty to the early qing dynasty and the background of American food crops.The second step is to discuss the introduction of American crops in Northeast Guangxi.First of all,the reasons for the establishment of grain structure are discussed.Secondly,the time,distribution range and direction of introduction of corn and sweet potato were discussed.Finally,the reason why American crops became the main crop was discussed.The huge population pressure and food crisis are the root causes of its introduction.In response to such a crisis,officials and immigrants have played a role in promoting American crops such as corn sweet potatoes from two levels.The arrival of the new cold season in the middle of the qing dynasty made the sweet potato stand out among the many high-yielding crops.The third step is to explore the environmental changes in the northeast of Guangxi under the background of introduction and extension of American crops.The spread of American crops has caused a variety of changes in northeast guangxi.As an important food crop in agriculture,its initial change was to face the subject of agriculture--people and objects--land.In northeast guangxi,the change of this environment is mainly manifested in land reclamation,population increase,forest degradation and soil erosion.The fourth step is to discuss the change of the "yao people" ethnic group in northeast guangxi.First,analyze the change of livelihood mode after the environment changes.Secondly,this paper discusses the differentiation and integration of the yao ethnic group and its surrounding population in northeast guangxi.Finally,the distribution of the guibei yao people is discussed.From the study of this article,we can see that the American grain crops have made great changes to the natural environment,the population pattern and the ethnic group of Chengdu in the northeast of Guangxi.It also has a profound influence on the lifestyle,culture and customs of Yao group.In this regard,we should also see that the development of the surrounding area has a huge impact on Northeast Guangxi.For example,immigration in the economic development of Northeast Guangxi and the phenomenon of "West rice East transportation" caused by the population pressure in Guangdong are one of the main reasons for crop promotion and social and economic development and ethnic change in Northeast Guangxi.