| The Second Songhua River is the source of the Songhua River in the South, which is the first major rivers in Jilin Province.The second Songhua River flows through the Department of Jilin Province in Northeast, with a total length of 824 km, There are many tributaries join. the river developed, since ancient times has been a life of the people of Jilin water production Main source. In modern times, with the development of society, human and natural environment of the increasingly close relationship, making the second of the Songhua River Basin water environment has undergone tremendous changes. In this paper, the integrated use of history, principles of environmental science, ecology theory, the theoretical study of water environment, mainly from the destruction of farming civilization, modern traffic, urbanization, industrialization and other aspects of the negative effects of the two-basin study of the impact. Analysis of the second Songhua River Basin Water Environment gradual deterioration of the reasons, in-depth study of the two-the main basin of water environment, to improve the state of the environment-water measures for sociol and economic watershed for the development of environmental support.The article is divided into five main parts, the first outlined in 1898 before the second of the morphology of the Songhua River Basin; second part of the 1898-1931 year on the second Songhua River Basin overall environmental causes and evolution of the water environment The impact on the third part of the Japanese between 1932-1949, the predatory exploitation of the second Songhua River Basin damage to vegetation caused by industrialization and deformed water pollution; fourth part of the 1949-2000 years of industrialization and urbanization of the The second negative effect on the Songhua River Basin water environment; Part V, in accordance with the above four parts of the reasons for the conclusions and countermeasures.
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