Water Environmental Status And Prediction In Songhuajiang (Hei Longjiang Province) Boundary River

The songhua river, one of the seven big rivers songhua river basin, is a bred the cross-straitprotrude water system, along with economic and political cooperation with neighboring countriesstrengthen, the songhua river water environment has become China’s water ecological security of theimportant part of it are under environmental challenges also will more and more big. This papers tothe songhua river as the research object, this paper discusses the current situation of the waterenvironment of songhua river, the water pollution characteristics, water environmental trends andprotection strategy, and get the conclusions are as follows:1) The songhua river ecological environment has cause damage, the water quality monitoringresults show that the water environment quality the grim situation, exceed the total phosphorus arequite common, PH, potassium permanganate index, hexavalent chromium and total nitrogenoccasionally to exceed bid, belong to light pollution; Layout of environmental problems, a lot ofdifficult degradable organic pollutants such as pahs, chlorobenzene kind, and the nitro kind ofpollutants into the songhua river; The proportion of non-point pollution bigger; Potassiumpermanganate index of the value is higher; The organic pollution of frozen aggravating.2) The single factor pollution index method, biological evaluation method, gray theory modelwere used in the songhua river basin water quality evaluation and forecast, the results show that theend of the "eleventh five-year plan", the songhua river basin Ⅴ class and section of bad Ⅴreducewater quality, good water quality in Ⅲclass rise; Fish species and dissolved oxygen contentincreased and The species diversity of algae increase annually. Prediction results show thatpotassium permanganate index, total nitrogen, total phosphorus reduced year by year, the dissolvedoxygen content rise.3) According to the Songhua river basin of the main ecological environment problems, thearticle puts forward five environmental protection measures of Songhua river basin waterenvironment sustainable development has a very important significance.