ABSTRACT
Xi’an city is one of the forty cities of severe water shortage in China. Groundwater is the main source of water supply for industrial and municipal users in the city. With the rapid development of the urban economy, the excessive mining of groundwater resulted in decrease of groundwater level and a series of environmental and geological problems, such as ground subsidence and ground cracks (Qu et al. 2014). These problems have already been the main factors restricting the sustainable and healthy development of the society and economy of Xi’an city (Wang 2000). The study of the spatial-temporal variability rule of groundwater is of great significance for the rational control and management of groundwater resources and the achievement of regional sustainable development. Groundwater depth is an important index of the state of the groundwater environment, reflecting the influence of human activity and climate change on the groundwater system.
