| During the Northern Song Dynasty,Bianhe river was prominent in the capital canals.With the increasing demand of grain transport by the song government and the adjustment of grain transport policy,Bianhe river played an important role in the transport of grain by government and people,stabilizing grain prices in southeast China,and strengthening the control over southern China.The formation of bianhe sacrificial ceremony is a manifestation of the extreme attention to it by the rulers of the Northern Song Dynasty.Before two years of Yuanfeng,Bianhe River had been taking the Yellow River as the main water source,which was affected by the hydrological environment of the Yellow River.In addition,due to the influence of precipitation and the low and equal terrain of the bianhe river,the bianhe river is prone to crevasse,overflow,siltation and shallow and astringent crises.It is difficult to control the amount of water flowing into bianhe River,which is the main cause of bianhe river crisis.In order to ensure that the bianhe river transport is not affected,the Song government attaches great importance to the management of the Bianhe River.Before The Song Shenzong,bianhe River management is mainly concentrated in two aspects: one is the bianhe river management,mainly through the appointment of water conservancy experts to manage the bian mouth,pay attention to the coordination of bian managers,formulate annual opening and closing and dredging policy,to ensure the stability of the amount of water into the bian mouth.The second is to control bianhe river,mainly from the prevention and control of river crisis,reinforcement and protection of river embankment,water reduction and flood diversion measures,river dredging and so on.In the dredging of the Bianhe River,the rule of dredging the bianhe River every year was broken during the Renzong period of Song Dynasty,which resulted in serious siltation of the bianhe River,the riverbed rising,and even the canal transportation of the Bianhe River was affected.In the middle and late period of Renzong of Song Dynasty,the channel of Bianhe River was dredged,and the narrow river project was carried out.The governance of Bianhe river began to deteriorate during the Renzong period of Song Dynasty.During the Xining period,Wang Anshi hoped to change the situation of huge expenditure on harnessing the Bianhe River and increase the utilization of the bianhe River.Besides,the project of replacing bianhe River with Kaibaigou River was also carried out.The management method of the bianhe River is too idealized,and the bianhe River management is carried out at the same time with several projects,which increases the difficulty of bianhe River management,and causes the expenditure of bianhe River management to increase rapidly in the short term,which makes it difficult to support human resources and financial resources.In addition,the anti-reform party criticized and destroyed wang Anshi’s governance of the Bianhe River,which made the policy of bianshi’s governance of the bianhe River ineffective and failed to change the situation of the deterioration of the governance of the bianhe River and the huge expenditure on governance. |