Evaluation and management technology to water catchment water quality of northwest China

The water catchment water quality of northwest China is evaluated and managed through the principal component analysis. The results show that the water quality is characterized by high organic load and turbidity, and the felted roof and tiled roof achieve the requirements of category. The evaluation results conform to actual situation of the rainwater-collecting drinking water source area objectively and practically. Through this article, more objective reference for the region water resources planning, utilization, development and environmental system optimization is provided.