Research On Water Conservancy In Hexi Region In Han And Tang Dynasties

Water is an important resource related to the national economy and people’s livelihood.Especially for the drought and water shortage Hexi region,how to effectively use water resources has an important impact on the development of Hexi region.Therefore,the governments of successive dynasties have attached great importance to water conservancy development in the Hexi area to ensure the local water use problem.During the period of Emperor Wu of the Western Han Dynasty,Hexi was recovered and four counties were set up.For the purpose of defending the Huns and Nanqiang,the Han Dynasty sent troops to station for a long time,and grain transportation became a problem.The government carried out large-scale farming in Hexi to solve the problem of grain supply.Under the demand for irrigation in the farmland,while the government used the guards for water conservancy construction,private forces also spontaneously participated in the water conservancy construction,which promoted the water conservancy development in the Hexi region.The water conservancy facilities built were divided into open channels and wells,as well as due to construction The main body is different,and there are official canals and civil canals.In addition,the government has established a corresponding water conservancy management system,which includes not only central water conservancy officials,but also local water conservancy officials and Tuntian water conservancy officials,which has strengthened water conservancy management in the Hexi region.In addition to satisfying agricultural irrigation,the Hexi area’s water conservancy is still in areas with abundant water resources,providing the government with military transportation functions.After the Hexi region experienced the climax of water conservancy construction during the Western Han Dynasty,from the Eastern Han Dynasty to the Sui Dynasty,the local water conservancy facilities were affected by the social environment of the Hexi region and have been destroyed and restored.Until the beginning of the Tang Dynasty,water conservancy construction in the Hexi area ushered in another climax.Under the promotion of the government,the water conservancy industry in the Hexi area has made great progress in the number of water conservancy projects,water conservancy management institutions,irrigation systems,water conservancy facilities maintenance and management systems,which further promoted the social and economic development of the Hexi region.However,comparing the construction and development of water conservancy in the Western Han Dynasty and the early Tang Dynasty,there are both commonalities and individualities..In analyzing the reasons for the development of water conservancy in Hexi during the Han and Tang Dynasties,the important geographical location of the Hexi area and the factors of military action were the key to the government’s investment in huge resources to develop local water conservancy during the Han and Tang Dynasties.In terms of raising labor for water conservancy construction,during the Western Han Dynasty,the local population was insufficient and the need for water conservancy construction made the Western Han Dynasty dispatch soldiers to act as water conservancy builders;while the water conservancy construction in the Hexi area in the early Tang Dynasty fully utilized local people as water conservancy projects.It has realized the raising of water conservancy labor force and the transformation from soldiers to civilians,which had a huge impact on the water conservancy development in the Hexi region.Regarding the role of water conservancy development in the Han and Tang dynasties,water conservancy not only increased the grain production in the Hexi region while exerting its irrigation function,but also significantly improved the ecological environment in the Hexi region.Wherever the canal water went,green trees became shades.However,the excessive development of water resources has also caused the deterioration of the local ecological environment.At the end of the water conservancy development in Hexi during the Han and Tang dynasties,the local water conservancy industry showed a trend of temporary prosperity and insufficient stamina.