摘要
运用Morlet小波分析,对富平县3个地貌单元区的地下水位埋深及降水量进行了分析,结果表明,地下水位整体呈下降趋势,但下降的幅度不同;2000年之前,3个地区的地下水位的变化与降水量的变化均存在8 a左右的震荡周期,同时地下水位的变化与降水量存在明显的对应关系;自2000年以后,降水量虽有所增加,但由于人为的过度开采,地下水位呈继续下降趋势.
Using the method of Morlet wavelet,the relationship between the groundwater table depth and the precipitation is investigated from three physiognomies units in Fuping County.The result shows that the trends of the groundwater table in the three physiognomies units are the same and down,but the reductive counts aren t the same.Before the year 2000,there exists a period of eight years in the changes of the groundwater and the precipitation in all the units,and there are clear relations between the changes of ...
出处
《西北师范大学学报（自然科学版）》
CAS
2008年第6期98-101,共4页
Journal of Northwest Normal University(Natural Science)
基金
国家自然科学基金资助项目(40571006)
