ASHLEY River In Harbin Section Shape Variation Of Water Quality And Sediment Phosphorus Characteristics Research

ASHLEY in the songhua river is level 1 tributary,the water environment directly affect the water quality of songhua river.With the development of watershed economy,ASHLEY river water quality affected by the serious.ASHLEY river water quality is worseⅤfor a long time.This is heilongjiang province’s most polluted rivers.In this paper,the water quality of Harbin ASHLEY river and sediment as the research object.Collected ash water sample,surface sediment samples and columnar sedimentary rock with 1 cm for the distance between points.Research the spatial distribution of water quality indexes and sediment samples of each index in time and space distribution,industrial and agricultural pollution degree were analyzed.Tested and analyzed total nitrogen（TN）,total phosphorus（TP）,Orthophosphate(PO₄^3-),Dissolved total phosphorus（DTP）,particle phosphorus（PP）,Soluble organic phosphorus（DOP）,Permanganate index(COD_Mn),PH,salinity,turbidity index of water.Comparing the indicators of spatial variation characteristics,and correlation analysis,to explore the water quality of Harbin ASHLEY river type and pollution factors.The results showed that the ash river in Harbin period of high water content of TN is one of the important reasons causing water quality deterioration.Agricultural non-point source pollution,emissions of industrial pollution and human production and living wastewater is the main cause of pollution,ASHLEY river of Harbin water pollution situation is more serious.Surface sediment samples,Iron and aluminum combination state of phosphorus（Fe/Al-P）,calcium phosphate（Ga-P）,inorganic phosphorus（IP）,organophosphate（OP）,total phosphorus（TP）and organic carbon（TOC）for test and analysis.Surface sediment analysis results show that the ash river in Harbin section of the index space difference of surface sediment is extremely strong,sampling points to more moderate pollution.Contains A1 point and distance of the large area of farmland near the outlet of A14 points and is located in the main A18 point are severe pollution and there is a certain correlation between surface sediment and water quality indicators.Columnar sediment samples,Iron and aluminum combination state of phosphorus（Fe/Al-P）,calcium phosphate（Ga-P）,inorganic phosphorus（IP）,organophosphate（OP）,total phosphorus（TP）and organic carbon（TOC）for test and analysis.Columnar sediment analysis results show that the ash river in Harbin period of pollution sources are mainly agricultural non-point source pollution,human production and living sewage and industrial pollution discharge.