The Regional Differentiation Rules Of Main Rivers And Lakes Pollution In The Second Songhua River Basin

The second Songhua River, the south source of The Songhua River, is one of the most important rivers in northeast China. This river basin is the main production bases of commercial grain in China and also takes on quite significant poles in production of Jilin province. In recent years, with the high-speed development of economy in this river basin, water environmental problems are becoming worse and worse. Problems in water quality of this basin have been given more attention especially after the water pollution accident of Songhua River in 2005. And now the healthy development of the society and the economy of Jilin Province has been effected by the environmental problems. Therefore knonwing and holding water quality in the second Songhua River basin, analyzing the reasons of water pollution in detail, making feasible measures of the protection and management of water environment and protecting the water environment effectively have far-reaching realistic meanings for improving the society develop harmoniously.Based on the environmental science principles, geography principles, and SPSS technology, the auther evaluate the water quality of the second Songhua River roundly, investigate the changing reasons of the water quality, providing scientific basis for protecting water environmental quality more efficiently. The following conclusions are drawn from the analysis.â… . The water pollution of the main rivers and lacks in the second Songhua River basin is primarily organic pollution.And the major pollution factors of each monitorring section includs permanganate inde, COD, BOD5, ammonia nitrogen, volatile phenol, Oil pollutant. These pollutant's maximum exceeding times averagely is 2-3. but exceeding times of organic pollutiont achives about 10 afer these rivers flowing Changchun,Jinlin,Songyuan.â…¡. The spatial change trend of water quality in the second Songhua River basin worsens gradually from southeast to northwest.The most serious areas includes the main current of the second Songhua River Jilin section downstream, the Yitong River Changchun section downstream as well as Yinma River Jiutai section downstream.â…¢. The main reason of water pollution in the second Songhua river basin includes Industry pollution, family Life pollution, agriculture pollution and Pollution of poultry and livestock farming. Various cities presents the different pollution type. Big city like Changchun ,Jilin,Songyuan belongs to the type of Industry pollution+family Life pollution,Dehui and fuyu belongs to the type of agriculture pollution+ Industry pollution, other citys belong to the type of Industry pollution+griculture pollution.