Study On The Diseases And Factors Of Garrison Soldiers In Juyan Area Seen In Han Bamboo Slips

Juyan area was located in the desert during the Han Dynasty,and the climate conditions were harsh.However,the Western Han government chose to operate here.As a frontier fortress military stronghold,on the one hand,it was easy to defend and difficult to attack.It was located at the throat of the four counties in Hexi and the only place for the Xiongnu to invade the south;On the one hand,the river is weak water,which surrounds Juyan city and is divided into two lakes in the south,including gashun Nur,sugu Nur and juyanze wetlands.It is wetter and more livable than the surrounding areas,ensuring the domestic water for soldiers and residents in Juyan area.Dense rivers have also become a natural advantage,blocking the Hun cavalry who are not suitable for water warfare,and effectively ensuring the life safety of the people on the northwest border.However,the close distance between the lake and Juyan city site also has hidden dangers that can not be ignored.At the turn of winter and spring,when it is warm and cold at first,the dense lakes in Juyan area attract many migratory birds to breed here.They go north and bring avian influenza virus,while bamboo slips are common for garrison to raise poultry,and there will be close contact between migratory birds,poultry and local garrison.In short,the geographical and environmental factors in Juyan area indirectly provide a hotbed for the epidemic of avian influenza virus among soldiers.During the Han Dynasty,many people from the central plains were recruited to work and live in the northwest border under the policies of recruiting troops to fill the border,immigrating to the real border and relegating to garrison.They guarded the beacon tunnel day and night to resist the attack of the Xiongnu,and also undertook the work of land reclamation,which had a certain mental pressure.In addition,in material life,their daily staple food is mainly millet and wheat,and the monthly distribution quantity is strictly controlled by the government.Moreover,as a staple food,millet contains nutrients that are difficult to maintain.An adult male labor force is lack of essential trace elements,which is also an important factor inducing diseases.In terms of non-staple food,the price of meat is high,and it is given priority to local officials,which is difficult for the garrison at the bottom to afford;In addition,Juyan soil is lack of available zinc and iodine trace elements,and the vegetables planted are also lack of nutrition,which is difficult to meet the needs of the human body.On the one hand,the garrison soldiers came from the Central Plains and were difficult to adapt to the cold and bitter life in the frontier.On the other hand,the nutritional structure of diet was incomplete.The two factors were the direct causes of the disease.