On the fluctuation of the Rate of Increase or Decrease in the Volume of the Aquifer of the Shallow Groundwater in Paddy Fields

K. Fukuda
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Abstract

Introduction When the volume of aquifer is measured for each month, a time series of the volume of aquifer is obtained. From this series, the aquifer's volume of increase during two consecutive months is obtained for the period of rise. And also, the volume of decrease is obtained for the period of decline. The values of the volumes of increase or decrease show a random variation in their time series. A study of the variations in the time series analysis was made.
稻田浅层地下水含水层体积增减率的波动研究
每个月测量含水层的体积,得到含水层体积的时间序列。由该序列可得到上升期间连续两个月的含水层增加量。同时,还得到了下降期间的减少量。增加或减少的体积值在其时间序列中表现为随机变化。对时间序列分析中的变化进行了研究。
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