The Application of Strontium on Recharge of Shaizhudong Spring in the Central of Weibei

Shaizhudong spring is the largest one in the central of north of the Weihe river, Shaanxi Province, China. For its supply source, forefathers have done a lot of research. It was considered that Jinghe leakage is the main supply source of Shaizhudong spring, and it is the concentrated discharge points of Shaizhudong spring area hidden karst system. In this paper, we have different understanding on recharge of Shaizhudong spring, based on the research achievements of strontium isotope.