Water Quality Transport-Transformation Regulations And Pollution Reasons Analysis For Chagan Lake

The wetland of Chagan Hu lake lies in hinterland of Songnen plain,it is an important ecological shield in middle-west region in Jilin province.The lakes in wetland mainly includes Chagan lake,Xinmiaopao and Xindianpao.The supply water channel of Chagan lake is Yinsong channel.The front lake of Chagan is Xinmiaopao,the communicating lake of Chagan is Xindianpao.The area of Chagan lake is the largest in the lakes,about 45% of the whole Chagan lake wetland.Chagan lake is one of the ten fresh water lake in our country,Chagan lake also is important commercial fish production plot and tourist region.Xinmiaopao receive polluted water from Qianguo irrigation district,water quality affected by inorganic exchange system from drainage channel and biological circulation system,furthermore,its background pollution also effect on water quality,the change tendency is different from drainage channel.With the rapid development of economy and population increasing,the large change happened continuously,in lake and watershed system,which result in resource construction shortage accelerate,on the condition of wetland lake pollution and eutrophication increasing heavily,accordance research has been taken by related department on our country and district government.In order to master water quality in Chagan lake,water quality monitor has been taken from September,2008.Water environment variation change regulation in equilibrium water period and abundance water period have been analysized.The analysis also included nature factors and human action,then,current reason conditions access for Chagan lake has been taken.The analysis results indicate that degree of mineralization is higher in abundance water period,and the mainly pollution factors are CODcr,PO43-,NH3-N and NO3--N.In the end,the article pointed out it should be done that water resource use effectively,farm drainage method and farm falling resource use,which can reduce probably bad effection for Chagan lake.This article mainly research areal pollution of Chagan lake.Water ecological system,the effect of connect lake and bubble system on Chagan lake,water quality and eutrophication regulation and tendency.In this research,the mainly restrict factor affect water ecology system operation in Chagan lake were determined.The methods maintaining health operation of water ecological system in Chagan lake were supplied.With the change of nature environment,industry and agriculture production actions in surrounding regions of Chagan lake directly or indirectly affect water environment of Chagan lake.The article takes water body of Chagan lake as research target,research element distribution character and change tendency in Chagan lake by analysing and testing suspended matter in lake,deposit in lake bottom,then,the conclusions were drawn that deposit element quantity in Chagan lake recently take the lower tendency little by little.