基于样本熵的地下水埋深序列复杂性分析

Sample entropy based analysis on complicacy of groundwater depth series

为描述黑龙江农垦总局建三江分局所处地区地下水埋深序列的复杂性特征,利用样本熵方法对其5个农场的9个生产队的地下水埋深序列复杂性进行了测度分析。结果表明:人类活动是造成地下水埋深序列复杂性差异的主要驱动因子,样本熵方法可以反映地下水埋深状态的变化,所需数据量小,具有敏感性和稳定性。研究成果揭示了该地区地下水资源系统的复杂性,为建三江地区乃至整个三江平原合理利用与开发地下水资源提供了科学依据。

In order to describe the complicated characteristics of the groundwater depth series in the region of Jiansanjiang Branch of Heilongjiang Agricultural Reclamation General Bureau, the eomplicacies of the groundwater depth series in nine pro- duction teams of five farms therein are analyzed with the method of sample entropy. The resuhs show that the human activity is the key driving factor to cause the discrepancy of the complicacy of the groundwater depth series, and then the change of the groundwater depth can be reflected sensitively and steadily by the sample entropy method with less data concerned. The study reveals the complicacy of the groundwater resources system in that region and lays a scientific basis not only for the reasonable utilization and development of the groundwater resources within the Jiansanjiang region, but also for the whole area of the San- jiang Plain.