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Analysis on the Relationship between Groundwater Level of Spring Water and Rainfall in Zhangqiu

ZHANG Ling et al(Meteorological Bureau of Zhangqiu City in Shandong Province,Zhangqiu,Shandong 250200)  
Using the data of rainfall and groundwater level of spring water through automatic observation in Zhangqiu during 2005-2006,the dynamic change map was developed for intuitive analysis.The correlation coefficient was calculated for correlation quantitative analysis.At last,the influence degree of rainfall on the groundwater level of spring water and the close correlation between the two were revealed.The results showed that the rainfall with the amount of less than 10 mm and 10-30 mm had smaller correlation coefficient with the groundwater level changes of spring water and had not great influences on water level rise.The rainfall with the amount of more than 30 mm had great correlation coefficient with the groundwater level changes and had significant influences on the water level rise of spring water.
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