文档介绍：Research on the Evaluation Methods of Surface Water
Quality Based on Spatial Data
Liu Yujia Liu Zhiming
Institute of Atmospheric Physics of CAS College of Urban Environmental Sciences
Graduate University of CAS Northeast Normal University
Beijing China Changchun China
Abstract—Taking Second Songhua River as the study area, II. THE GENERAL SITUATION OF THE STUDY AREA
established the SQL Server-based spatial data warehouse. On
this basis, using GIS, statistical data mining, visualized data This article takes Second Songhua River in Jilin Province
mining and BP work to finish data preprocessing, (Ersong for short) as the study area, which is located between
build water quality assessment forecast model, and analyze 124°36′~128°50′E and 41°44′~45°24′N. The total length of
spatial distributing of water quality. The results show that it is Second Songhua River is and the area is 73749km2.
adapted to manage and analyze the spatial data if water resource Many rivers are located in this basin, including 842 rivers
was investigated by Spatial Data Mining(SDM), and it is easier to whose total basin area is more than 20km2. The main
discover deep-seated information and rules from the mass of data; tributaries are Toudao Songhua River, Huifa River, Yinma
In the central and the southeast parts of Second Songhua River, River, Yitong River and