Spatial Distribution and Correlation Analysis of River Water Quality Based on POI Data in Jiangsu Province
With the aggravation of environmental pollution,the coordination level between water ecological environ-ment and economic and social development is increasingly becoming a focus of concern in the community.This pa-per,taking 9 rivers in Jiangsu Province as the research object,explores the spatial distribution and influencing fac-tors of water quality to provide scientific reference for planning and river pollution control in Jiangsu Province based on POI data and principal component analysis.The results show that the water quality of rivers in the south and middle areas of Jiangsu is better than that in the north,and the water quality of rivers in the middle reaches is bet-ter than that in the upper and lower reaches.There is a certain correlation between POI data and water quality,but affected by the uneven water treatment degree,there is a negative correlation in clear water area and a positive cor-relation in smelly water area.The maximum correlation POI type buffer radius is 1400-1600 m.The influence ra-dius of different POI types on water quality is obviously different.
POI datawater qualityblack and smelly waterJiangsu provincecorrelation analysis