Surface Water Resources Analysis in Shanxi Province Based on Gray Relationship

The surface water resources which with complex non-linear characteristics is affected by many factors.The use of scientific methods to analyze the amount of surface water resources is important for planning and management of water resources.In this paper,the gray relational grade method is adopted to analyze the relevant factors of surface water resources in Shanxi Province.The results show that the annual precipitation,groundwater resources,agricultural land which is irrigated with surface area is most closely related to water resources.There is an upward trend of surface water resources in Shanxi Province under the influence of a variety of factors in recent years.