地电阻率背景值初探──以大同－阳高和忻州2次地震为例

Primary Study on the Background Value of Ground Resistivity ──Taking 2 Earthquakes at Datong-Yanggao and Xinzhou for Example

用山西地电台网的资料，从震前变化的一些现象入手，找到识别和消除非地震异常及背景影响的方法，对地电阻率背景变化场作了初步的物理解释，并将此方法用于１９９１年震情分析中，取得较好结果。

Starting with the phenomena before the earthquake, analyzed the data of the geoelectrical network in Shanxi province, searched a method identifying and eliminating non-earthquake anomaly and background interference. The primary interpretation for the background change field of ground resistivity has been made,and the method has been applied into the seismological analysis of 1991.